How to Add Remote ID to a Home-Built FPV Drone

Add Remote ID to a home-built FPV drone by fitting a broadcast module. A home-built drone has no built-in Remote ID, so it needs a module that broadcasts its ID and position. The Holybro module broadcasts over WiFi and Bluetooth from a PX4 or ArduPilot controller. Check the FAA Declaration of Compliance list first.

Quick facts

Fact	Value
Rule	FAA Part 89, drones that must be registered need Remote ID
Home-built drone	No built-in Remote ID, needs a module or FRIA
Holybro module	$49.99, WiFi and Bluetooth, CAN or serial
Broadcast module flight	Visual line of sight only, per the FAA
Sub-250g recreation	Exempt from registration and Remote ID
DOC check	FAA UAS Declaration of Compliance list

Does a home-built FPV drone need Remote ID?

Yes, if the drone must be registered. A drone at 250g or more must be registered, and any Part 107 drone must be registered at any weight.

A home-built drone has no factory Remote ID. It needs a module, a Standard Remote ID build, or flight inside a FRIA.

A sub-250g drone flown only for recreation is exempt. Check the FAA Remote ID page for the exact thresholds.

What are the three ways to meet the rule?

Fly a Standard Remote ID drone with built-in broadcast. Fly with a Remote ID broadcast module attached. Or fly inside a FRIA.

A home-built drone uses the module path or the FRIA path. A Standard Remote ID build needs a manufacturer DoC submission.

A broadcast module flight must stay within visual line of sight at all times, per the FAA rule.

Which module fits a home-built FPV drone?

Pick a module that appears on the FAA Declaration of Compliance list when you need a plug-and-play retrofit. Only a listed module meets the rule.

The Holybro module is a Standard Remote ID solution for manufacturers and integrators. It is not a verified plug-and-play broadcast module for end users.

The Holybro module costs $49.99 and runs ArduRemoteID firmware. It needs a PX4 or ArduPilot controller with a free CAN or serial port.

How do you wire a Remote ID module?

Mount the module clear of carbon and metal so its antenna can broadcast. Power it from the flight controller at 5V.

Wire the CAN port to a DroneCAN port, or wire the serial port to a TELEM port. Set the port for Remote ID traffic in the firmware.

Check the module status in your ground station before takeoff. ArduPilot shows Remote ID status in Mission Planner and QGroundControl.

How do you register the module in DroneZone?

Log in to FAA DroneZone and open your drone registration. Answer the Remote ID question with yes.

Enter the serial number from your FAA-accepted broadcast module or Standard Remote ID drone. Do not enter a serial from an unverified module.

Check the FAA DOC list for your module first. A serial that is not on an accepted DOC does not meet the rule.

How the options compare

Remote ID path	Fits	Flight limit	Needs
Broadcast module	Home-built and older drones	Visual line of sight	DOC-listed module
Standard Remote ID	New factory drones	No VLOS limit from RID	Built-in broadcast
FRIA	Recreation pilots	Inside the FRIA only	FRIA site access

How do you add Remote ID to a home-built FPV drone?

1. Weigh the drone and check if it must be registered.
2. Check the FAA DOC list for an accepted broadcast module.
3. Mount the module clear of carbon and metal.
4. Wire it to a CAN or serial port on the flight controller.
5. Enter the module serial in DroneZone and test the broadcast.

Parts that fit this guide

In-stock parts ship from the New York, USA warehouse in 1-2 business days. Prices below are the live store prices we verified on November 10, 2026.

Holybro Remote ID Module With Case – WiFi / Bluetooth, CAN / Serial, PX4 / ArduPilot ($49.99)

Remote ID module at $49.99. It broadcasts over WiFi and Bluetooth and runs ArduRemoteID firmware.

MAVLink2 WiFi Telemetry Module for Pixhawk/APM ($42.99)

Telemetry module at $42.99. It gives a MAVLink2 WiFi link for Pixhawk and APM flight controllers.

Matek F405-WING V2 Flight Controller with OSD and SD Slot for ArduPilot / INAV ($138.99)

Flight controller at $138.99. It runs ArduPilot with OSD and an SD slot for fixed-wing builds.

Shop the full range: GPS, Telemetry and Sensors at Quality RC Parts. See also: Related guide.

Frequently asked questions

Does my 5-inch FPV drone need Remote ID?

Yes, if it weighs 250g or more or flies under Part 107. Most 5-inch builds cross 250g.

Can I use the Holybro module as a plug-and-play fix?

No. It is a Standard Remote ID solution for manufacturers and integrators, and no DOC entry for it as an end-user module could be verified.

What happens if I fly without Remote ID?

You break the FAA rule when your drone must be registered. Fly inside a FRIA or fit a listed module.

Does a sub-250g whoop need Remote ID?

No, for recreation only. A sub-250g drone flown only for recreation is exempt from registration and Remote ID.

Sources

• FAA Remote ID rule and guidance
• FAA UAS Declaration of Compliance list
• Holybro Remote ID overview and spec
• ArduPilot Remote ID documentation
• FAA DroneZone

Last updated: November 10, 2026.

How to Choose Servos for RC Planes and Cars

Match the servo to the job by torque, speed, size, and gear material. A 9g micro servo suits a small foam plane, while a standard servo with 9.4 kg/cm of torque suits a 1/10 car steering job. Metal gears last longer under load than plastic gears. The TowerPro SG92R costs $8.00 and gives 2.5 kg/cm of torque at 4.8V.

Quick facts

Fact	Value
Servo signal	50 Hz PWM, 1 to 2 ms pulse
SG92R torque	2.5 kg/cm at 4.8V
SG92R speed	0.1 sec per 60 degrees at 4.8V
MG996R torque	9.4 kg/cm at 4.8V, 11 kg/cm at 6V
1250MG torque	3.5 kg/cm at 6.0V
Lowest price servo here	$8.00 for the SG92R and MA-90

What torque does your plane or car need?

Torque is the turning force of the servo, measured in kg/cm. A higher number moves a larger control surface or a heavier steering load.

A small foam plane flies fine on 0.6 kg/cm from a 5g SG50 servo. A 1/10 car needs 9.4 kg/cm or more for steering under load.

Check the servo datasheet for torque at your battery voltage. The MG996R gives 9.4 kg/cm at 4.8V and 11 kg/cm at 6V.

Should you pick metal gears or plastic gears?

Metal gears handle shock loads and last longer in cars and 3D planes. Plastic gears run quieter and cost less in light foam models.

The MG90D uses metal gears in a 13g digital micro servo. The SG92R uses plastic composite gears and still gives 2.5 kg/cm at 4.8V.

Pick metal gears when the servo drives steering or a large surface. Pick plastic gears for a light park flyer with small loads.

What is the difference between analog and digital servos?

An analog servo updates its position about 50 times per second. A digital servo updates faster and holds position with more force.

Digital servos suit fast steering and 3D flight where holding torque matters. The DSM-44 is digital, gives 1.6 kg/cm, and moves in 0.07 sec.

Analog servos cost less and suit trainers and slow scale models. The ES08MA set gives four analog metal gear servos for $35.00.

How do you size a servo for a plane or a car?

Measure the servo bay before you order any servo. A micro servo measures about 23 by 12 by 29 mm, while a standard servo measures about 41 by 20 by 37 mm.

Match the spline count to your servo arms. Most servos in this guide use a 25 tooth spline, so check the arm listing first.

Match the voltage too. Most micro servos run on 4.8V to 6V, so a 2 cell receiver pack needs a regulator or a high voltage servo.

How do you test a servo before you install it?

Center the servo with a tester before you fit the arm. A servo tester checks travel and centering on the bench.

Power the servo from a 4.8V to 6V source, never from a bare USB port. A servo can draw 1400mA at stall, per the MG996R datasheet.

Move the arm through its full travel and listen for binding. A servo that buzzes at the end point needs its travel reduced.

How the options compare

Servo	Torque	Speed	Gears	Price
SG92R	2.5 kg/cm at 4.8V	0.1 sec per 60 deg at 4.8V	Plastic composite	$8.00
MA-90	1.3 kg/cm	0.10 sec per 60 deg at 4.8V	Metal	$8.00
SG50	0.6 kg/cm	0.1 sec	Not listed	$9.00
MG90D	Not listed	Not listed	Metal, digital	$14.00
1250MG	3.5 kg/cm at 6.0V	0.14 sec	Metal	$18.00
DSM-44	1.6 kg/cm	0.07 sec	Metal, digital	$22.00
ES08MA, set of 4	Not listed	Not listed	Metal, analog	$35.00

How do you install a servo in a plane or car?

1. Center the servo with a tester, then fit the arm at 90 degrees.
2. Mount the servo with its screws and rubber grommets.
3. Connect the servo lead to the correct receiver channel.
4. Power the receiver and check full travel in both directions.
5. Set the end points so the arm never binds at full throw.

Parts that fit this guide

In-stock parts ship from the New York, USA warehouse in 1-2 business days. Prices below are the live store prices we verified on November 10, 2026.

SG92R Analog Plastic Composite Gear Micro Servo ($8.00)

Micro servo at $8.00. It gives 2.5 kg/cm of torque at 4.8V with plastic composite gears.

MA-90 Metal Gear Micro Servo ($8.00)

Metal gear micro servo at $8.00. It gives 1.3 kg/cm of torque and moves in 0.10 sec per 60 degrees at 4.8V.

SG50 5g Micro Servo ($9.00)

Light 5g micro servo at $9.00. It gives 0.6 kg/cm of torque and moves in 0.1 sec.

MG90D Digital Metal Gear Micro Servo ($14.00)

Digital metal gear micro servo at $14.00. It weighs 13g and suits larger park flyers.

1250MG Metal Gear 25g Mini Servo ($18.00)

Mini servo at $18.00. It gives 3.5 kg/cm of torque at 6.0V and weighs 25g.

DSM-44 Digital Metal Gear Micro Servo ($22.00)

Digital metal gear micro servo at $22.00. It gives 1.6 kg/cm and moves in 0.07 sec.

Shop the full range: Servos at Quality RC Parts. See also: Related guide.

Frequently asked questions

What size servo does a 1/10 RC car need?

A standard servo with at least 9.4 kg/cm of torque at 4.8V. The MG996R meets that figure and costs $15.99.

Can a micro servo steer an RC car?

Yes, on a small 1/16 or 1/18 car. A 1/10 car needs a standard servo with higher torque.

Do metal gear servos last longer than plastic gear servos?

Yes, under shock loads such as steering hits and hard landings. Plastic gears suit light foam planes with small loads.

What voltage do most micro servos use?

Most run on 4.8V to 6V from a receiver pack or BEC. Check the datasheet before you use a 2 cell lithium pack.

Sources

• TowerPro SG90 servo datasheet
• TowerPro MG996R servo datasheet
• SparkFun hobby servo tutorial

Last updated: November 10, 2026.

How to Pair a Radio and ELRS Receiver for FPV Drones

Pair an ExpressLRS receiver with a radio that has an ELRS module on the same band. A 2.4GHz receiver needs a 2.4GHz module, and a 900MHz receiver needs a 900MHz module. Wire the receiver to a flight controller UART with CRSF, set the same binding phrase on both ends, and confirm a solid LED before arming.

Quick facts

Fact	Value
Receiver protocol	CRSF over a UART
RP1 refresh rate	500Hz, or F1000Hz in full rate mode
EP1 weight	0.41g, 10 by 10mm
ES900 module band	915MHz or 868MHz
ER4 channels	4 PWM channels, 10mW telemetry
Lowest price receiver here	$18.57 for the HPXGRC ELRS receiver

Do you need a radio with ELRS built in, or an external module?

Some radios ship with an internal ELRS module. That is the simplest start because no module bay is used.

Other radios take an external module in a JR or Nano bay. The ES900TX module fits TX16S, T12, and T18 radios for 900MHz long range.

An external module also lets you switch bands. Swap a 2.4GHz module for a 900MHz module without buying a new radio.

Should you pick a CRSF or a PWM receiver?

Pick CRSF for any FPV drone with a flight controller. CRSF carries all channels plus telemetry over one UART.

Pick PWM for a plane or car without a flight controller. PWM wires each channel straight to a servo.

The ER4 is a PWM receiver with 4 channels. The EP1 and RP1 are CRSF receivers for flight controller builds.

How do you wire the receiver to the flight controller?

Connect receiver TX to flight controller RX, and receiver RX to flight controller TX. Add 5V and ground.

Enable Serial RX on that UART in Betaflight. Set receiver mode to Serial and the provider to CRSF.

CRSF needs a full duplex UART. Check that serialrx_inverted and serialrx_halfduplex are off, then save and reboot.

How do you bind the pair and check the link?

Flash the module and receiver with the same binding phrase and the same major firmware version.

Power the radio first, then the receiver. A solid LED and a C in the Lua script confirm the link.

Open the Betaflight Receiver tab and move every stick. Confirm each channel moves in the right direction before arming.

What packet rate should you run?

Run 500Hz for racing and freestyle. It sends a packet every 2ms for a responsive feel.

Run 100Hz or lower for long range cruising. Slower rates carry more error correction per packet.

The RP1 and RP2 reach 500Hz, or F1000Hz in full rate mode. The EP1 runs 25 to 500Hz.

What failsafe setting should you use?

Set failsafe to cut throttle on signal loss. A quad that holds throttle will fly away.

Test failsafe with props off. Switch the radio off and confirm Betaflight shows failsafe before you fly.

ExpressLRS reports link quality on your OSD. Watch LQ fall before RSSI falls, and turn back early.

How the options compare

Part	Type	Band / Protocol	Key spec	Price
FlySky FS-i6X	Radio	AFHDS 2A	6 to 10 channels	$32.99
HPXGRC ELRS	Receiver	2.4GHz ELRS	CRSF serial	$18.57
HappyModel EP1	Receiver	2.4GHz ELRS	0.41g nano	$31.50
ES900TX/RX	Module set	915 / 868MHz	Long range	$38.05
RadioMaster ER4	Receiver	2.4GHz ELRS	4CH PWM	$53.99
RadioMaster RP1 V2	Receiver	2.4GHz ELRS	500Hz CRSF	$58.99

How do you set up a new ELRS pair from scratch?

1. Mount the receiver and wire TX, RX, 5V, and ground to a free UART.
2. Enable Serial RX on that UART and set the provider to CRSF in Betaflight.
3. Flash the module and receiver with the same binding phrase and major version.
4. Power the radio, then the receiver, and confirm a solid LED.
5. Check all channels in Betaflight, set failsafe, and test with props off.

Parts that fit this guide

Prices below are the live store prices we verified on November 10, 2026. In-stock parts ship from New York in 1 to 2 business days. Check the product page for the current price before you order.

FS-i6X 10CH 2.4GHz AFHDS 2A RC Transmitter with Receiver Options ($32.99)

Stick radio at $32.99. Six channels by default, expandable to 10, on AFHDS 2A.

2.4G ExpressLRS ELRS Receiver for FPV Freestyle Long Range Drones ($18.57)

Lowest price ELRS receiver here at $18.57 for freestyle and long range builds.

HappyModel EP1 TCXO 2.4GHz ELRS Receiver, Ultra Light 0.41g, 10x10mm, 25Hz~500Hz Refresh Rate ($31.50)

Nano receiver at $31.50. It weighs 0.41g, measures 10 by 10mm, and runs 25 to 500Hz.

ExpressLRS ES900TX ES900RX Long Range Module 915/868MHz for TX16S T12 T18 ($38.05)

Module and receiver set at $38.05 for 915 or 868MHz long range on TX16S, T12, and T18.

ER4 2.4GHz ExpressLRS PWM Receiver, 4CH, 10mW ($53.99)

PWM receiver at $53.99. Four channels drive servos directly with 10mW telemetry.

RadioMaster RP1 V2 ELRS Nano Receiver 2.4GHz CRSF 500Hz With 65mm UFL T Antenna For TX16S TX12 Boxer Zorro FPV Drone RC RX Kit ($58.99)

Nano receiver at $58.99 with a 65mm T antenna and 500Hz refresh rate.

Shop the full range: ELRS Receivers at Quality RC Parts. See also: Related guide.

Frequently asked questions

Can I use a FlySky FS-i6X radio with an ELRS receiver?

Not directly. The FS-i6X speaks AFHDS 2A, so it needs an external ELRS module in its bay to drive an ELRS receiver.

What is the difference between ELRS and Crossfire?

Both use CRSF to talk to the flight controller. ELRS is open source with higher packet rates, while Crossfire is a closed TBS system.

Why does my receiver enter WiFi mode on power up?

It enters WiFi mode after 60 seconds with no link. Connect to its ExpressLRS RX hotspot at 10.0.0.1 to flash or set options.

Do I need a 900MHz module for long range FPV?

No, but it helps. A 900MHz link penetrates better at distance, while 2.4GHz suits racing with faster packet rates.

Sources

• RadioMaster RP1 and RP2 receiver manual
• HappyModel EP2 TCXO receiver manual
• ExpressLRS binding guide (iFlight)
• ExpressLRS web flasher

Last updated: November 10, 2026.

Check each LiPo cell with a balance charger or cell checker before storage. Store each cell at 3.8 V, about 40 percent charge, in a fire-retardant bag away from heat. A pack that reads under 3.0 V per cell or shows puffing needs care. This guide covers the checks, the storage voltage, and the gear that keeps packs safe.

Quick facts

Fact	Value
Storage voltage	3.8 V per cell
Storage charge	About 40 percent
Full charge	4.2 V per cell
Low cell warning	Under 3.0 V per cell
B6 charger	80 W max charge, 0.1 to 6.0 A
B3 Pro charger	2S and 3S packs
Large safe bag	$7.00
Safe bag 2-pack	$26.99, insulation claimed to 1000 F

What voltage should a LiPo cell read before storage?

Store each LiPo cell at 3.8 V, which is about 40 percent charge.

A full cell reads 4.2 V, and a cell under 3.0 V is over-discharged.

Check the voltage before you put a pack away, not after weeks in a drawer.

A pack stored full or empty loses capacity faster than a pack stored at 3.8 V.

How do you check each cell in a LiPo pack?

A balance charger or cell checker reads each cell, not just the pack total.

The B6 80W charger shows per-cell voltage on its digital display and charges at 0.1 to 6.0 A.

The B3 Pro balance charger covers 2S and 3S packs and costs $15.99.

Do not store a pack with a cell under 3.0 V; that cell is over-discharged and needs attention first.

Where should you store LiPo batteries?

Store packs in a fire-retardant bag in a cool, dry place away from flammable items.

The 2-pack of safe bags costs $26.99 and claims heat insulation up to 1000 F.

The large single bag costs $7.00 and fits bigger packs for charging, storage, and transport.

Never store packs in direct sun, in a hot car, or loose with metal tools.

What gear keeps LiPo charging and storage safe?

A balance charger keeps every cell equal, which extends pack life.

The B6 charger handles 1 to 6 LiPo cells at up to 80 W and costs $42.99 with the power supply included.

The B3 Pro covers 2S and 3S packs for $15.99 when you need a compact charger.

Pair either charger with a safe bag so charging and storage both happen inside fire-retardant material.

What did we check on the bench?

We matched every price in this guide to the live store price on November 12, 2026.

We checked the B6 listing states 80 W max charge, 0.1 to 6.0 A charge current, and 11 to 18 V input.

We checked the 2-pack listing states a fire-retardant fiberglass inner layer and a side cable hole for charge leads.

How the options compare

Item	What it checks or holds	Cells or size	Price
B6 80W balance charger	Per-cell voltage and balance charge	1 to 6 LiPo cells	$42.99
B3 Pro balance charger	2S and 3S balance charge	2S and 3S packs	$15.99
Large LiPO safe bag	Fire-retardant storage and charging	Large packs	$7.00
LiPo safety bag 2-pack	Fire-retardant storage, 1000 F claim	Large plus small	$26.99

How do you check and store a LiPo pack in 6 steps?

1. Plug the pack into a balance charger or cell checker.
2. Read each cell voltage and note any cell under 3.8 V.
3. Charge or discharge the pack until every cell reads 3.8 V.
4. Look for puffing, dents, or damaged leads before you store the pack.
5. Place the pack in a fire-retardant bag and close the zipper.
6. Set the bag in a cool, dry place away from flammable items.

Parts that fit this guide

In-stock parts ship from the New York, USA warehouse in 1-2 business days. Prices below are the live store prices we verified on November 12, 2026.

B6 80W Mini LiPo Balance Charger and Discharger with Power Supply, XT60, JST, and T Connectors ($42.99)

B6 80W digital balance charger at $42.99 with the power supply included. It balance charges 1 to 6 LiPo cells at up to 80 W. Charge current runs 0.1 to 6.0 A, and input runs 11 to 18 V.

ImaxRC B3 Pro Balance Charger (2S/3S) ($15.99)

ImaxRC B3 Pro balance charger at $15.99. It charges 2S and 3S LiPo packs and suits a compact bench check.

Large LiPO Safe Bag ($7.00)

Large LiPO Safe Bag at $7.00. It holds large packs for charging, storage, and transport.

LiPo Safety Bag 2-Pack (Large + Small) ($26.99)

LiPo Safety Bag 2-Pack at $26.99. It gives one large and one small fire-retardant bag with a claimed insulation up to 1000 F and a side cable hole for charge leads.

Shop the full range: Batteries & Chargers at Quality RC Parts. See also: Related guide.

Frequently asked questions

Can I store a LiPo battery fully charged?

No. A full cell reads 4.2 V, and a pack stored full loses capacity faster. Bring each cell to 3.8 V before storage.

What voltage is too low to store a LiPo?

Under 3.0 V per cell is over-discharged. Do not store the pack that way; that cell needs attention first.

How often should I check stored LiPo packs?

Check stored packs every few months and bring any drifted cell back to 3.8 V. A pack that reads low or shows puffing needs care before you use it again.

Do I need a LiPo bag for storage?

A fire-retardant bag adds a layer of protection for charging, storage, and transport. Store the pack inside the bag, away from flammable items.

Sources

• Battery University: Charging Lithium-Ion Batteries (BU-409)
• Oscar Liang: LiPo Battery Guide
• FAA: Lithium Batteries

Last updated: November 12, 2026.

How to Balance-Charge a LiPo Pack Without Guessing

Balance-charge a LiPo pack by connecting the main lead and the balance lead, then setting the cell count and charge rate on the charger. A balance charger charges each cell to 4.2 V and stops when all cells match. Use 1C as the charge rate, so a 2200 mAh pack charges at 2.2 A.

Quick facts

Fact	Value
Full cell voltage	4.2 V
Storage voltage	3.8 V per cell
Charge rate rule	1C (2.2 A for a 2200 mAh pack)
B6 charger	80 W max charge, 0.1 to 6.0 A
B6neo 2 charger	300 W DC, 0.2 to 15.0 A
X4 charger	500 W total, 15 A per channel
B3 Pro charger	2S and 3S packs
Balance current, B6neo 2	Max 550 mA
Balance current, X4	1.2 A per cell max

What does balance charging do?

A balance charger charges each cell in a pack to 4.2 V and keeps the cells matched.

Without a balance lead, one cell can drift high while another stays low.

A cell that reads under 3.0 V is over-discharged and needs care before you charge it.

Store packs at 3.8 V per cell when you are done flying for the day.

How do you set the charge rate?

Use 1C as the charge rate, which means the current in amps equals the capacity in amp-hours.

A 2200 mAh pack charges at 2.2 A, and a 5000 mAh pack charges at 5.0 A.

The B6 charger tops out at 6.0 A, so it covers 1C charging for packs up to 6000 mAh.

The B6neo 2 runs 0.2 to 15.0 A, and the X4 runs up to 15 A on each of its 4 channels.

Which charger fits your packs?

The B3 Pro covers 2S and 3S packs for $15.99 when you need a compact charger.

The B6 charger handles 1 to 6 LiPo cells at up to 80 W and costs $42.99 with the power supply included.

The B6neo 2 charges 1 to 6 cell LiPo, LiFe, Li-ion, and LiHV packs at 300 W DC and costs $84.99 with the US plug.

The X4 charges four packs at once with 500 W total AC power and costs $182.99.

What is balance current and why does it matter?

Balance current is the current the charger moves between cells to even them out.

The B6neo 2 balances at up to 550 mA, which suits packs with small cell drift.

The X4 balances at up to 1.2 A per cell, so it evens out a drifted pack faster.

A charger with higher balance current saves time when cells drift apart after hard flights.

What did we check on the bench?

We matched every price in this guide to the live store price on November 12, 2026.

We checked the B6neo 2 listing states 300 W DC input, 80 W PD input, and 0.2 to 15.0 A charge current.

We checked the X4 listing states 500 W total power, 15 A per channel, and a 3.5 inch IPS display.

How the options compare

Charger	Max power	Charge current	Cells	Price
B3 Pro balance charger	Not listed	Not listed	2S and 3S	$15.99
B6 80W balance charger	80 W	0.1 to 6.0 A	1 to 6 LiPo cells	$42.99
B6neo 2 smart charger	300 W DC, 80 W PD	0.2 to 15.0 A	1 to 6 cells	$84.99
X4 4-channel charger	500 W total AC	Up to 15 A per channel	1 to 6S	$182.99

How do you balance-charge a LiPo pack in 6 steps?

1. Check each cell voltage on the charger display before you start.
2. Connect the main lead to the charger output.
3. Connect the balance lead to the balance port.
4. Set the battery type to LiPo and the cell count to match the pack.
5. Set the charge rate to 1C for the pack capacity.
6. Start the charge and stop when the charger shows every cell at 4.2 V.

Parts that fit this guide

In-stock parts ship from the New York, USA warehouse in 1-2 business days. Prices below are the live store prices we verified on November 12, 2026.

B6 80W Mini LiPo Balance Charger and Discharger with Power Supply, XT60, JST, and T Connectors ($42.99)

B6 80W digital balance charger at $42.99 with the power supply included. It balance charges 1 to 6 LiPo cells at up to 80 W. Charge current runs 0.1 to 6.0 A, and input runs 11 to 18 V.

B6neo 2 Smart Charger, DC 300W / PD 80W ($84.99)

B6neo 2 smart charger at $84.99 with the US plug. It charges LiPo, LiFe, Li-ion, and LiHV packs of 1 to 6 cells at 0.2 to 15.0 A. DC input runs 300 W, and USB PD input runs 80 W.

X4 4-Channel Smart LiPo Charger, AC 500W ($182.99)

X4 4-channel smart charger at $182.99. It charges four packs at once with 500 W total AC power and up to 15 A per channel. Balance current runs 1.2 A per cell max.

ImaxRC B3 Pro Balance Charger (2S/3S) ($15.99)

ImaxRC B3 Pro balance charger at $15.99. It charges 2S and 3S LiPo packs and suits a compact bench check.

Shop the full range: Batteries & Chargers at Quality RC Parts. See also: Related guide.

Frequently asked questions

What voltage does a balance charger stop at?

A balance charger stops when every cell reads 4.2 V. The charger evens the cells out during the charge so none goes past 4.2 V.

Can I charge a LiPo without the balance lead?

You can, but the cells can drift apart over time. Always connect the balance lead so each cell is checked and evened out.

What charge rate should I use?

Use 1C as the charge rate. A 2200 mAh pack charges at 2.2 A, and a 5000 mAh pack charges at 5.0 A.

How many packs can the X4 charge at once?

The X4 charges four packs at once, one per channel. Each channel runs up to 15 A, and total power is 500 W.

Sources

• Battery University: Charging Lithium-Ion Batteries (BU-409)
• Oscar Liang: LiPo Battery Guide
• FAA: Lithium Batteries

Last updated: November 12, 2026.

How to Choose Drone Propellers for FPV and Multirotors

Match the propeller to the motor, frame size, and flying style, in that order. Diameter is the first number: 2030 means a 2 inch prop, and 13×6.5 means 13 inches across with 6.5 inches of pitch. Multirotors fly matched CW and CCW pairs. Planes use slow flyer, direct drive, folding, or APC style props by airframe and motor type.

Quick facts

Fact	Value
Size range	40 mm micro props to 13 inch airplane props
Micro FPV	2030 4-pack at $2.99, 2 CW + 2 CCW
Airplane props	$3.99 to $7.99, slow flyer to APC style
Pairs	CW and CCW sold as matched sets
Folding props	11×6 pairs with 38 mm spinner hubs

How do you read a propeller size?

The first number is the diameter and the second is the pitch, both in inches on airplane props.

A 13×6.5 prop measures 13 inches across with 6.5 inches of pitch, per the APC style listing.

A 2030 prop is a 2 inch prop for 100 mm FPV frames, sold as a 4-pack with 2 CW and 2 CCW props.

Which props fit micro FPV builds?

The 2030 bullnose 3-blade prop fits 100 mm FPV frames and 200 to 320 size quadcopters, with a direct bolt-on fit.

The 40 mm 3-blade props fit 0802 to 1102 motors on micro freestyle builds, with 1.0 or 1.5 mm center holes.

The 3.5 inch flower tri-blade props weigh 1.55 g each for cruising and light freestyle on 3.5 inch builds.

The 3016 4-blade props come as 8 pairs for 3 inch quads, since props are consumables that need spares.

Which props fit electric airplanes?

Slow flyer props suit slow flyer electric airplanes, with shaft adapter rings included in the 2-pack.

Direct drive props suit direct-drive electric motors, with the 10×6 sold as a pack of 10.

The APC style 13×6.5 nylon E-prop suits electric RC airplanes at 13 inches in diameter.

Why do multirotors fly CW and CCW pairs?

The listings sell CW and CCW props as matched sets.

The 2030 4-pack holds 2 CW and 2 CCW props, and the 40 mm 8-pack holds 4 of each.

Fit each prop on the motor turning its direction, and check the rotation before the first flight.

Folding props: what fits them?

The 11×6 folding prop pairs with 38 mm folding prop spinner hubs, per the listing.

The listing names folding-prop spinners as the fitment, so check the hub size before ordering.

Fixed props suit direct drive and slow flyer airframes that keep the prop spinning.

What did we check on the bench?

We checked each listing states its diameter, pitch, blade count, and pack size.

We matched every price here to the live store price on November 12, 2026.

We counted 14 images on the 40 mm prop listing and 1 image on each airplane prop listing.

How the options compare

Prop	Diameter	Pitch	Pack	Price
2030 bullnose	2 in	3 in	4-pack	$2.99
Slow flyer 10×4.5	10 in	4.5 in	2-pack	$3.99
Folding 11×6	11 in	6 in	Single	$5.99
Direct drive 10×6	10 in	6 in	10-pack	$6.99
APC style 13×6.5	13 in	6.5 in	Single	$7.99

How do you pick and fit a propeller?

1. Read the frame size and motor size from the build before you shop for props.
2. Match the diameter and pitch to the motor and airframe in the listing.
3. Pick CW and CCW pairs in equal numbers for a multirotor build.
4. Check the bore and adapter fit against the motor shaft.
5. Fit the prop, check the rotation direction, and spin up slowly with the model held down.

Parts that fit this guide

Shipped fast and securely from our secure facility in New York, providing fast, high quality USA shipping.

2030 2×3 3-Blade Bullnose Multicopter Prop for 100mm FPV (4-Pack) ($2.99)

2030 2×3 3-blade bullnose prop at $2.99. 4-pack with 2 CW and 2 CCW props, for 100 mm FPV frames.

APC Style 13×6.5 Nylon E-Prop ($7.99)

APC style 13×6.5 nylon E-prop at $7.99. 13 inch diameter, 6.5 inch pitch, for electric RC airplanes.

10×4.5 Slow Flyer Prop (2-Pack) ($3.99)

10×4.5 slow flyer prop at $3.99. 2-pack, 10 inch diameter, 4.5 inch pitch, shaft adapter rings included.

10×6 (1060) Direct Drive Electric Prop (Pack of 10) ($6.99)

10×6 direct drive electric prop at $6.99. Pack of 10, 10 inch diameter, 6 inch pitch, for direct-drive motors.

11×6 Electric Folding Prop ($5.99)

11×6 electric folding prop at $5.99. 11 inch diameter, 6 inch pitch, pairs with 38 mm folding prop spinner hubs.

Related parts: 1611-3 40mm 3-Blade PC Propeller, 8 Pcs (4CW+4CCW): 1611-3 40 mm 3-blade props, 8 pieces, for 0802 to 1102 micro motors; T3.5×2.5×3 3525 Flower Tri-Blade 3.5 Inch FPV Props: T3.5×2.5×3 flower tri-blade 3.5 inch props, 1.55 g each; 3016 3 Inch 4-Blade Props, 8 Pairs: 3016 3 inch 4-blade props, 8 pairs, for 3 inch FPV quads.

Shop the full range: Propellers at Quality RC Parts. See also: Related guide.

Frequently asked questions

What does 2030 mean on a prop?

It is a 2 inch prop for 100 mm FPV frames, sold as a 4-pack with 2 CW and 2 CCW props.

Do I need both CW and CCW props?

Yes for a multirotor. The listings sell matched sets, such as 4 CW plus 4 CCW in the 40 mm 8-pack.

What fits a folding prop?

The 11×6 folding prop pairs with 38 mm folding prop spinner hubs, per the listing. Check the hub size first.

Are adapter rings included with slow flyer props?

Yes. The 10×4.5 slow flyer listing states shaft adapter rings are included in the 2-pack.

Sources

• Propeller reference
• Propeller aeronautics reference
• Brushless DC motor reference

Last updated: November 12, 2026.