I'm still just getting my feet wet really in this whole RC business. I got my first stock RC car about a year ago (Tamiya Mini Cooper). I really wanted to try racing off-road so I finally broke down and ordered a Associated B4, Mamba Max 5700, a lipo charger, and a cheap Lipo battery to try out from hobbycity.com about a month ago. Up until that point all my electric cars were 100% stock (motor system and batteries), thus very slow. So I'm just entering the world of brushless/Lipo. Anyway, the stuff is finally getting here...
I got the Lipo battery today. It's a Zippy-K 4300mAh 2S1P 20-30C
. I got it for $40 plus $10 shipping, and for that price, I thought it was worth trying out, even if I risk getting a crappy battery. The Zippy-K 4300 was the only 2S battery they had that's over 3000 mah, so I didn't have much choice when ordering it.
Anyway, I might've gotten a bit careless because I've seen some photos of Zippy packs in similar buggies and such, and they had no problems fitting in the battery tray even with those THICK 10AWG wires from the battery.
That wasn't the case for me. =(
I didn't really pay much attention to the size when ordering, but it says 145x45x18mm on their site. The battery tray length in B4 is just about 145mm, or just under it. The battery, however, is only 145-146mm at its shortest side. The other side is much longer. In fact, all the dimensions are only valid if you measure at their absolute lowest point.
Anyway, the pics show my problem better than I can explain it.
Any advice on what I should do?
I don't really wanna sell it or trade it, cuz I've tested the cells' voltage and its exactly 3.86v for both (perfect storage voltage, and in balance), so it seems like I didn't get a bad cell or anything. If I get another pack from HC I might not be as lucky again.
I think the best solution at this point would probably be to take the pack apart, replace those HUGE 10AWG wires with something thinner (I doubt it really needs 10AWG, it's only 2S * 4300 mAh * 20C discharge)... And see if that shortens its length a bit. However, like I said before, I'm pretty new to Lipo... I'm not really good at soldering (planning to get better though, just don't wanna start off learning on a Lipo bomb lol), and after watching so many Lipo explosion vids and not having much experience with them, I'm very scared of it blowing up lol... So I'm not sure if this is possible for me atm.
Another possible solution would be to try and think of a way to mount the pack so that it's not fully inside the tray, but rather sort of laying on the bottom of the servo, sticking out... But then I gotta make sure it doesn't come out flying if I happen to have a hard crash... :/ Don't think it's the best idea.