Dextrx It depends on the RC car but generally, yes it does. Mine was for a brushless WL-toys a979B setup and as my first upgrade for the setup it went 30mph originally with the stock battery and 50mph with this one and once I put a brushless motor in it I scraped up to 100mph

Dextrx Yes sir, it can do 2 and 3s lipos

Dextrx Yes you can, that’s what I’m running with it right now and it absolutely flies, and from what I can tell it’s at least splashproof haven’t submerged it yet but then again why would you? I’ve ran it through pretty deep puddles tho and it ate it up

Dextrx You can fit the motor in no problem, the esc however Is massive and I couldn’t fit it in without using a modified radio tray so it could sit directly behind the shock towers suspended above the driveshaft

Dextrx Yes it is a deans T plug

BG341141445 Where do you plug it in on the a979B?

BG341141445 itwill technically fit but i don't know what the ESC on the Q901 is rated for so if you give it a try watch out for smoke

BG341141445 itstechnically not supposed to but it fits in my wltoys a979 and it has the same original size battery as that so odds are it will fit just fine just be aware it is a lot taller than the stock one so it'll only fit in if you have a strap to secure your battery as opposed to a radio tray with body pins