How to Choose XT60 and EC2 Connectors for RC Builds
Choose XT60 and EC2 connectors by current and battery size. An XT60 connector lists 30A rated and 60A maximum with 0.5 mOhm contacts. An EC2 set gives 5 pairs for $5.99 and suits small batteries and receiver leads. A QS8-S connector handles 110A continuous for builds above 60A. Match the connector to the draw.
Quick facts
| Fact | Value |
|---|---|
| XT60H set | 30A rated, 60A max, 0.5 mOhm, $11.87 |
| EC2 set | 5 pairs, $5.99 |
| EC2 to XT60 | 1 adapter, $6.00 |
| EC2 to T | 1 adapter, $6.00 |
| XT60 splitter | 1 male to 2 female, $5.25 |
| QS8-S | 110A continuous, 180A peak, $11.99 |
What current can an XT60 connector carry?
The XT60H set lists a 30A rated current with a 60A maximum.
Contacts are gold-plated copper at 0.5 mOhm on DC 500V.
The housing runs -20C to +120C and lasts 1000 mating cycles.
The set suits 12AWG silicone wire and costs $11.87 for 10 pairs.
The 14AWG extension lists 30A with 60A instantaneous at 0.55 mOhm.
What is an EC2 connector for?
EC2 connectors suit small batteries and receiver power leads.
The set gives 5 pairs of plugs and housings for $5.99.
Use EC2 where the battery and the load draw low current.
Five pairs cover several small packs at one low price.
Check the plug on the battery before you order a set.
How do you run an EC2 battery on XT60 gear?
Use an adapter when the battery plug and the gear plug differ.
The EC2 female to XT60 male adapter costs $6.00.
It lets you charge or run EC2 batteries on XT60 gear.
The EC2 female to T-connector male adapter costs $6.00.
It fits EC2 batteries on Deans-style chargers and models.
How do you split XT60 power to two loads?
A splitter feeds two loads from one battery lead.
The XT60 splitter costs $5.25 with one male to two female.
It also runs two batteries in parallel for double capacity.
Parallel wiring doubles capacity at the same voltage.
Use two packs of the same cell count for a parallel pair.
When does a bigger connector fit?
Step up when the draw passes the 60A maximum of an XT60.
The QS8-S connector handles 110A continuous and 180A peak.
It uses gold-plated brass contacts in a PA66 housing.
It suits 8 to 12 AWG cable and costs $11.99 for one plug.
The 8.0 mm gold bullet connectors handle 180A for $5.99 a 2-pair set.
How the options compare
| Connector | Current | Wire | Quantity | Price |
|---|---|---|---|---|
| XT60H set | 30A rated, 60A max | 12AWG | 10-pair | $11.87 |
| EC2 set | Not listed | Not listed | 5 pairs | $5.99 |
| EC2 to XT60 adapter | Not listed | Not listed | 1 adapter | $6.00 |
| EC2 to T adapter | Not listed | Not listed | 1 adapter | $6.00 |
| XT60 splitter | Not listed | Not listed | 1 splitter | $5.25 |
| QS8-S, single | 110A continuous, 180A peak | 8 to 12 AWG | 1 plug | $11.99 |
| QS8-S, pair | 110A continuous, 180A peak | 8 to 12 AWG | 1 pair | $17.99 |
| 8.0 mm bullets | 180A | Not listed | 2 pairs | $5.99 |
How do you swap a battery connector to XT60?
- Cut the old connector off the battery lead.
- Slide a piece of heat shrink onto each wire.
- Tin the wire ends and the XT60 cups with solder.
- Solder the red wire to the positive cup and the black wire to the negative cup.
- Slide the heat shrink over each joint and heat it to shrink.
- Check the polarity with a meter before you plug the pack in.
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.
EC2 Connector Set, 5 Pairs ($5.99)
EC2 connector set at $5.99 for 5 pairs. It gives plugs and housings for small batteries and receiver power leads.
EC2 Female to XT60 Male Adapter ($6.00)
EC2 female to XT60 male adapter at $6.00. It lets you charge or run EC2 batteries on XT60 gear.
XT60 Splitter Adapter, 1 Male to 2 Female ($5.25)
XT60 splitter adapter at $5.25. It runs one male to two female so you can run two batteries in parallel or split power to two loads.
XT60H Male + Female Connector Set with Sheath Housing, 10-Pair ($11.87)
XT60H connector set at $11.87 for 10 pairs. It lists 30A rated and 60A maximum with 0.5 mOhm gold-plated copper contacts.
QS8 Anti-Spark 110A Battery Connector ($11.99)
QS8-S anti-spark connector at $11.99 for one plug. It handles 110A continuous and 180A peak with gold-plated brass contacts.
EC2 Female to T-Connector Male Adapter ($6.00)
EC2 female to T-connector male adapter at $6.00. It runs EC2 batteries on Deans-style chargers and models.
Shop the full range: Connectors and Wiring at Quality RC Parts. See also: Related guide.
Frequently asked questions
What current can an XT60 connector carry?
The XT60H set lists 30A rated and 60A maximum. Contacts are gold-plated copper at 0.5 mOhm on DC 500V.
What is an EC2 connector for?
It suits small batteries and receiver power leads. The set gives 5 pairs of plugs and housings for $5.99.
How do I run an EC2 battery on XT60 gear?
Use the EC2 female to XT60 male adapter at $6.00. It lets you charge or run EC2 batteries on XT60 gear.
When should I step up to a bigger connector?
Step up when the draw passes the 60A maximum of an XT60. The QS8-S handles 110A continuous and 180A peak for $11.99.
Sources
- Amass XT60U connector datasheet
- Battery University: series and parallel battery configurations
- EuroRC RC battery connector guide
Last updated: November 10, 2026.