Lipos

Remote-Controlled Dave · Thu Dec 21, 2006 12:52 am

Need sum info on Lipos. Where do people get theirs, best prices ect.
Also will need a charger if I go down that route.
Cheers. Dave.

leo-rcc · Post by **leo-rcc** » Thu Dec 21, 2006 8:14 am

Mine came from www.rc.jepe.biz

The charger too, its the apache 2500.

Simon Windisch · Post by **Simon Windisch** » Thu Dec 21, 2006 4:18 pm

It's worth checking out the new batteries from Atomic, http://www.atomicworkshop.co.uk/Product ... ctType=BAT. I've ordered a couple, but I haven't tested them yet.

Simon

peterwaller · Post by **peterwaller** » Thu Dec 21, 2006 7:19 pm

I have got mine from Himodel in china.
They offer 81 different Lithium Polymer packs at very reasonable prices.
http://www.himodel.com/sort.php?sub1=BM&page=1

Remote-Controlled Dave · Fri Dec 22, 2006 1:21 am

Which ones on that page am I looking at Simon? I know nothing about how to identify 'em

leo-rcc · Post by **leo-rcc** » Fri Dec 22, 2006 8:35 am

What you need to look for are the high discharge lipo's. On Simon's link there are really only two i would consider, the 220 mah and most of all the 300 mah Cyclone.

Wether you want them in a pack or not is up to you and your robot design.

Simon Windisch · Post by **Simon Windisch** » Fri Dec 22, 2006 10:20 am

I bought the 130Mah ones. I don't use anything that needs a super high discharge rate, I just need enough juice to last 3 minutes with the minimum weight, and I'm hoping that 130Mah will do it. I've used the 145Mah Kokams for years and they used to give me about 15 minutes.

Mah is milliamp hours, or (barring a correction from someone who really knows) how much power a battery contains. The other important number is 7.4v, which is what you get with 2 Lipo connected in series. 3.7 for one, 7.4 for 2 and 11.1 for three. 3.7 is not enough to run anything, and 11.1 is for speed freaks, the motos would run too fast for me.

Anyway, it's a good point that not eberyone knows about amps and voltage as related to antweight batteries.

Simon

leo-rcc · Post by **leo-rcc** » Fri Dec 22, 2006 2:17 pm

Simon is right.

A lower amount is ok for a robot with not too heavy duty motors on them. the 250 mah in Katjuscha can last me about 6 minutes if i dont overdo it. but then i get in that dangerous area where lipos tend to blow up, literally.

So as a rule in normally recharge every 3 minutes (actually, i recharge after every fight, wether it took 2 minutes or 2 seconds). But I have a brushless to feed, and thats more than 4 sanyos put together.

Cavecrusher · Post by **Cavecrusher** » Fri Dec 22, 2006 2:28 pm

The DBA evo's never had anything bigger than 160 mah

i'm placing the 130mah atomicworkshop ones in the new DBA.

Remote-Controlled Dave · Fri Dec 22, 2006 3:51 pm

Thanks muchly, thats all very helpful.