Quick release battery pack

i cant help on the drill pack cases...in my mind is a tray screwed into the car which will take a smaller tray inside it which carries a lipo and deans...or 2x bullets 4mm...so its kwik change. as you drop the tray in the connectors line up and engage...the trays could be some perspex or machined nylon.
something light anyway...hmm carbon fibre...

maybe held in by 2 velcro straps or some clips...
chris

[zeropointbug]

Paralyzed, yeah that's exactly what I mean mount the charger side, with some plastic trimming, just the locking mechanism.

Chris, I would love to do some custom battery cases and tray, and it would be the most ideal way to go, but that would cost alot of money;

I would mount it so the battery change can occur from the side of the vehicle, without removing the body shell. I come in for a pit stop, pull up the side of the body grab the pack off, throw on another one, boom boom, just as fast as a refuel on a nitro.

i don't really see much fabricating work in getting the lipo packs in the drill cases, I do see a bit of a engineering matter for the esc/RC side of the pack mounting. I don't see an issue with mounting a deans or some sort of easy sliding bullets in the lock, just getting them to lineup.

Where to get empty drill pack cases?

Hello

I know you have said you don't want to have a custom case, but quite honestly I find the drill battery case bulky in most cases. Their square shape would also make it hard to find RC lipo's to stick inside?

I did some very rough designs quickly of what I would do in this case. The bottom tray would be made from 1" delrin (Offcuts from big companies can be had for cheap on eBay), and milled out, couple of holes drilled, press/glue in your male bullets, probably take all of 30minutes depending on how big an endmill you use in the delrin. For the batteries you simply make a little delrin block housing the female bullets and would then be soldered on to the lipo wires. The block would probably require some hot glue/silicon and then heatshrink over the both it and the battery to be rigid enough with a soft pack lipo. Hard pack lipos mostly have the bullets already so no need for the block.

Problems with the design would be you still need some sort of strap to hold the battery, but something could be designed there quite easily I'm sure. Also for the best possible alignment when inserting the battery should only just fit in the tray. That means if you use different capacity batteries regularly, it probably won't work too well. That said if you only have one type of battery, doing the mill work yourself, it would probably only cost about $30-50 in material depending on how many batteries you want to 'convert'?

EDIT, looks like chris mechanic beat me to it!

Interesting idea, I shall be watching to see how you solve it

Kieren

[pinkpanda3310]

How about utilizing a hardcase lipo? The ones with removable leads - http://k007.en.ec21.com/50C_5700mah_...6_4252618.html

[zeropointbug]

Aussienerd, that is the ideal system if I had the right shape lipos, some good delrin plastic, and some sort of locking system would be nice. Although it might be easier to make it a parallel slider vs. adjacent straight in, for alignment reasons.

The packs I have are Hyperion 6s 45c 2200mah packs, they are 105 x 34 x 53mm dimensions, so they are pretty short and stubby, just plain small... good for 10 mins runtime on my track with still ~20% SOC left. These things are awesome, wicked power, good handling from the light weight, and surprising super cool temps.

http://www.aircraft-world.com/shopexd.asp?id=3097

I would think they would fit inside this dewalt case, but I will have to maybe check it out at a hardware store, do a rough fit measurement.