Li-Po help

Hey guys,

I'm working on a project that needs a 24V battery and Li-Po's seem to be the light weight way to go.

I've never worked with Li-Po's before so I don't know the brands, and if Chinese manufacturers lie about the capacity of Li-Po's like they do with Li-ion cells.

I was looking at this cell:
http://www.ebay.ca/itm/1X-22-2v-12c..._Batteries&hash=item2a205f9b83#ht_1845wt_1396
but it seems to good to be true. 5AH 24V for only 43$?

Could someone fill me in on Li-Po's? I'm looking for a 5AH~ 24V cell. I tried google, but I couldn't find any clear answer on quality cells other than Rhino cells.

You can get a good idea if a li-po capacity is close by
taking the physical dimensions and finding the volume.

In this case the volume is 438,080 mm3.

For example here is a good similar low priced battery
and it's volume is 3876600 mm3.

HobbyKing R/C Hobby Store : Turnigy 5000mAh 6S 20C Lipo Pack

There is another criteria that is very important and that
is the Discharge Rate. The discharge rate of the battery
I linked to is 20C continuous or 20C X the Capacity (100A).

The higher the discharge rate the more expensive the
battery.

The eBay one you linked to has a Burst discharge rate
of 15C which would indicate a 10C continuous discharge
rate 10C X 5000mAh (50A)

It all depends on what you are using it for...

I use 5000mAh 22.2 Volt 40C batteries to fly my 93"
wingspan Piper L4 Cub swinging a 22" propeller.


Jerry

You can contact us at any time on our Website: J.BAUER Electronics

So the cell on ebay would be close to the claimed capacity then?

I'm probably only going to need 20A continuous discharge at the most so 10C is perfect for me. I looked at hobby king before, and the cells are priced good but the shipping costs are 20$~