[Wiki] Connectors and plug types

Battery Connectors

Generally used internally to interconnect charge port to battery and battery to ESC.

Amass XT90

XT90 Info
Product Name Amass XT90
Wire diameter range 8AWG
Continuous current 90A (Max current 100A)
Connector DC
Pin Material Brass Gold Plated
Voltage ≥500V

XT90-S (antispark)

XT90-S Info

Same as XT90, but has a resistor built in which gets bridges the gap first, allowing your ESC capacitors to slowly charge up (without a spark), which then gets bypassed once you plug the connector in deep enough. No spark is safe for your electronics, and doesn’t wear down the connector!


XT60 Info

Rated at 60 amps

XT30U (current, replaced the XT30)

XT30 Info

XT30U is the upgraded version of original XT30

  • The main difference is XT30U is lighter. There is no reason to choose the old version over the U version. Both XT30 and XT30U are compatible.
  • Connector rated for 30 amps and can handle up to 60A bursts with no issue.
  • Great for auxiliary stuff like connecting your charge port to BMS, running a buck converter for lights, etc.
  • Almost as small as a JST connector, but can support far more current!
  • Can be soldered to up to a 14 gauge wire!

XT30 (discontinued, replaced by XT30U)

Anderson Powerpoles

Anderson Powerpoles Info

Assembly Instructions
Powerpole & SB Technical Data Sheets and Drawings



QS10 Info

QS8-S (antispark)

QS8-S Info
  • Rated for max 200 amps


AS120 Info
  • Rated for 120A
  • Has four extra pins

Charging Connectors


XLR Info
  • XLR can accept 14 AWG (1.6 mm or 0.063 in) wire with a current-carrying capacity of 15 amps.
  • Large variety of port mounts and covers in waterproof, locking and hardened types.
  • One of the current ebike standards.
  • Generally more expensive than other connection types.
  • Larger than DC jacks or two pin ports.

Higher quality XLR plugs, like the Neutrik XX brand (rated for 16 amps), are an excellent choice for higher current charging.

GX12-3P (12mm)

GX12-3P Info
  • Common across light electric vehicles such as esk8 and electric scooters.
  • Rated for 7 amps from quality suppliers

GX20-3P (20mm)

GX20-3P Info
  • Rated Current : 15A



XT60E M Info

AMASS data sheet for XT60E-M.pdf (510.0 KB)

Xt90s and XT60s are also often used. Make sure not to mix it up with your loop key port!!! Always put a fuse in series with your charging port to avoid such disasters.

SP13(2 pin)


SP13 Info
  • Rated for 13A
  • Small enough to fit on single-stack enclosures
  • Has a screw-on cap for waterproofness!
  • Plastic, so easy to epoxy to the enclosure

Cnlinko M20(size) LP-20

Cnlinko M20 Info

The connector used on the lacroix board, rated for 20 amps, ip67 certified, corrosion resistant, internals of the connector are interchangeable, so of you buy a pair you can config which is female and male
They also produce connectors in the same manner for usb A and rj45 among others




RoPD® - Rosenberger Power Data Connectors

RoPD Info
  • Magnets force the correct orientation and hold the connector together.
  • Has two power lines and 4 signal lines, nominally for CANbus.
  • The Rosenberger connector was one of the standards adopted by energybus as a battery plug.
  • More expensive than other connection types.
  • Magnets can attract metal object and debris.
  • Proprietary standard.

Zeet ZTC3002

ZTC3002 Info
Product Name ZTC3002 2Pins~2+4Pins
Wire diameter range 18AWG~12AWG
Continuous current 30A (Max current 50A)
Connector DC
Pin Material Brass/Silver Plated/Gold Plated
Voltage ≥500V
Feature Flame retardant/preservative


ZTC4011 Info
Product Name ZTC4011 2Pins~2+7Pins
Wire diameter range 12AWG~8AWG
Continuous current 70A (Max current 80A)
Connector DC
Pin Material Brass/Silver Plated
Voltage ≥600V
Feature Flame retardant/preservative

Zeet ZTC4011

SAE Connector


SAE Connector Info

SAE Connector

DC5521 aka 5.5x2.1mm (up to 5A, but gets warm at 4A & 5A) (it’s possible to find models that support 7A and 8A but they are difficult to find, and very stiff to plug and unplug)

This type of female port is only rated up to 2A. I (@rusins) burned one with a 5A charger :frowning_face:

But these ones are rated up to 5A:


In general, it’s easier to stick to DC55521 connectors. The standard 2.5mm connectors can not handle more current than a good 2.1mm connector. Both are capped to 5A officially.
This female port from electricboardsolutions claims to be rated for up to 4A.

Motor Specific Connectors

Generally used internally to interconnect the ESC to the Motor.

5.5mm bullet connectors (up to 120A)

Good for 120A. Great for big motors! Ideally paired with 10AWG.
Also useful for battery connections (if you know what you are doing).

4mm bullet connectors






HiGo L1019D

HiGo L1019D

Weipu SA/SF 20/28

Weipu SA/SF 20/28

Weipu SA/SF 20/28 motor phase connectors

EC5-3 aka 3mm bullets


Signal Connectors

HiGo (lights, breaks, throttles, and accessories)

HiGo Mini-B

HiGo Mini-B Info

JST (hall sensors and lipo balance cable)

JST-SM 2.5 mm pitch

  • Current rating: 3 A AC/DC max.
  • Voltage rating: 250 V AC/DC max.
  • Temperature range: -25°C to +85°
    eSM.pdf (435.6 KB)

JST-PH 2.0 mm pitch


ePH.pdf (898.2 KB)

JST-ZH 1.5 mm pitch


eZH.pdf (992.1 KB)

Please place additions here

Any additions are appreciated



Good idea, but I think it’s better to use high quality stock images instead :slight_smile:
Also we could add some dimensions / tech specs for each connector, for example, recommended amount of max amps.


If I could turn it into a wiki then everyone could contribute

@mmaner @longhairedboy

How do I do this

AS150 for battery-VESC.


  • MR60
  • MT60
  • MR30
  • MT30
1 Like


Will update pics later

It is now a wiki and can be updated and added by anyone

Things which need to be changed are



And uses

GX-connectors for sensors, throttles, lights…

Neutrik Speakon connectors NL4 for phase wires (up to 30A I think)

Maybe not the best for esk8 applications, but I’ve been sharing battery/controller between different vehicles and when you need something to be frequently disconnected they’re pretty good options.


Go for it and place them on the list

thank you @rusins

Spent a good 15 minutes cleaning up the XT connector and charge port section. Might do the same for the bullet connector section later if I feel like it :stuck_out_tongue:

1 Like

thank you very much

About the ratings of those Amass connectors , I’m not 100% sure we got this right. For instance, I think the Datasheets say that the XT60 is rated at 30A with a max of 60A. Don’t know how to interpret that… Rating vs Max? And I also don’t know how safe it is to draw 50A through that. (hence why the XT90 are probably better candidates)

Similarly, would it be safe to use the MR60s for the motor phases on beefy motors if they’re only “rated” for 30A?

XT60s is not a thing sadly, only XT90s with the antispark

1 Like

its complicated cause MR60 is rated to 30A continuous but 60A peak.
Firstly who is able to pull 30 amp continuous per motor? There is no spec for how long it can hold the peak current but you would assume its fro more than a few seconds.
Furthermore I think this rating is for DC current. If your using 3Phase AC (like we are on motors) then i think the rating is for the RMS current. eg a 30A continuous DC rated connector should take around 42A AC . . . . maybe. I think you multiply by 1/root2.

Math aside there are lots of builders that use MR60 on 6374 motors or larger and dont have any problems with them. I personally use them on my maytech 6880 motors and i weigh a lot so i use full power often for long ammounts of the time.


Is it okay to use XT90S between battery and vesc instead of a regular XT90?

1 Like

I use them all around, no problems at all for my experience…Expensive though…

Bumping this thread to get people to contribute to it, and also to ask a question:

In a world where both 5.5x2.1 and 5.5x2.5 mm barrel charging ports / plugs exist, which one to go for? My beefier chargers come with 2.5mm ones, but so far all I’ve had is 2.1. I’m wondering now if I should switch everything to 2.5mm because they’d be more sturdy + less electrical resistance, or if I should do something even fancier: have all my 10s boards use 2.1, and all my 12s boards use 2.5 :smiley: That way you could tell just from the outside what battery the board has :stuck_out_tongue:


I wouldn’t do that, pretty sure you can fit a 2.5 plug into a 2.1 socket… might not end well.


Some people here charge their 10s batteries with 12s chargers, so it wouldn’t be too bad…

1 Like

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