battery box size

[gauge]

Hi all, Ive just bought an ip engineering deluxe chassis got it so i will have something to run quickly as my brazil steamer is a while away,my question to you is what size battery box do i use, it says run the motor on 6 to 7 volts do i use a 2-4-or 6 aa size battery box you guys will know better. Thanks gauge

[Pendo Pilot]

Well I used to run my IP Jessie & Jack (similar setup) on 6 AA cells. They were Ni-MH 1.2v (2000mAh) ones from maplin. Used to give me almost 3 hour running time & took about 20 mins to recharge (4 at a time) on a fast charger.. I always felt that it needed more oompth though but never got around to trying a little bit more.

When I first built the Jessie I tried it on 6 duracell AA's & it was hopeless, only just had enough power to haul itself. With the higher rated Ni-MH's it really worked quite well.

Oh & I used a 6 AA holder 3 over 3 style.

[90733]

My dad has used a RC car 7.2volt battery pack, only a cheap one. Seems to work well, and probally can run afternoon on it.

[gauge]

Thanks Guys. A trip to maplins on sat,

[-steves-]

If you really want high power output then go for a 2 cell Li-po battery, loads of differing Mah ones to be had to suit the size needed. the only downside to these is they require a bit of a specialized charger and that dont come all that cheap, but they generally charge anything!

I have run li-pos for around 3 years now and never had any issues with them at all, for consistant power output the are unbeatable IMHO.

There were some tests done by a guy once on another forum comparing AA Nimhs, to sub C Nimhs and comparing that to Li-Po's, the AA's were extremly poor at outputting power consistanly, the Sub C's were much better (car racing pack) but the Li-Po's were awesome to say the least.

Here is a link to a cheap place in the UK that shows the 2 cell options and another link to a charger too.

http://www.giantcod.co.uk/cell-lipo-bat ... 1_113.html

Blimey, chargers have come down LOADS, now you can get them for as little as £18.30, i think my first one was around £50, and the last one I bought (A big one) was around £100. Ah well, enjoy the best batteries for even better costs!

http://www.giantcod.co.uk/lipo-charger- ... =1&sort=2a

[gauge]

Thanks for that, Gauge