Hmmm, the AS150's seem to be a great idea, I will have to consider them in the future, thanks!

hey guys, sorry to bring this back but I had bought a used ESC/Motor combo and was looking for answers to my question but am getting conflicting answers.

I have a Pro-Match 6500mah 75C battery w/ a XT90 connector that has 10awg wire. The battery wires to the esc are 12awg. Should these be the same? Am I leaving power on the table so to speak?

TIA! :-D

It depends on the motor and voltage. What is the exact esc and motor and what car is it going in? If you have a crazy powerful setup, it might be a good idea to bump up to 10awg all around.

Does it really?

https://cimg3.ibsrv.net/gimg/www.rct...67fcf9d523.gif
(Picture comes from RCGroups discussion)

It wouldn't even be possible to be "leaving power on the table", your wires would just start to get hot. Your also making a pretty big assumption that it will be at 100% all of the time.


Evoking1230:

12 guage is more than plenty for most any setup. I doubt your doing longer than 2 foot runs wire.

if you feel the need to run 10 ga then do it cant hurry anything where as if you ran underated ga wires it will n could.i have a few setups with 10ga wires 1 is a brushed vfs 2000 that delivers 1200 amps to a brushed motor . I used to melt battery wires and plugs but no more since I went up to 10 ga and xt 120 no more melting on return runs on a drag course the whole under .02 seconds ..3 that are brushless

Thank you for that.

No., no longer than 2 foot runs lol. Just always wondered if it would affect anything since the battery wires from the ESC are 12ga and the battery wires themselves are 10ga.

I'm running a Hobbywing Xerun SCT Pro ESC the previous version than the current one and a Tekin Gen2 1900Kv motor with a Pro Match 6500mah 75C battery w/ XT90 connector :-D

I had a 6s setup with a xerun xr8 pro and a 2250 motor with 12 guage wire. The only thing getting warm was the dean's connector I used. So your setup is plenty, some of the 10 guage wiring from the batteries is just marketing hype. Rarely do you run into setups that need it.

I am of the opinion that 10Ga wire on batteries is not just marketing hype. I think the 10Ga wire on the battery serves to conduct heat away from internal solder joints in the battery that have no cooling air flow. I do not think that implies you need 10GA elsewhere, because the Connector and ESC joints are not in a sealed container.

A racer at my track last weekend running 1/8th electric late model (basically a 1/8th buggy) with a 2650 motor melted the plastic case on his 4S pack that had bullet connectors. I personally would never use bullet connectors with that setup. I draw an average of 35 amps with a 2200KV motor, so I expect he was pulling more. I believe the bullet connector in the pack has no way to dissipate heat, unlike a Deans in open air. I think having the 10Ga wire on the pack reduces heat generated inside the hard case and so is of some value on the battery.

Good point, I never thought of it that way but using heavy gauge wire to conduct heat away from the solder tabs does make sense.