what charge current I should use?
 

Hello I have 2 zippyh 3s 5000 lipos that I will be charging in series, and I have hyperion charger. It tells me in the instructions that it wont charge lipo batteries any higher than 2c, but all other nicad/nimh can be charged up to the 10A rating.
What charge rate can I use safely, how many amps is 2c charge rate?
thanks.

If you charge them in series (total 6s) then 1C should be used (5A).
If you charge them in parallel (total 3s) they you can use 10A (1C as 5000mah+5000mah=10Ah).
1C= 1*XXXmah (1000mah=1Ah), so with 5000mah battery 1C is 1*5000mah=5A etc.

Charge rate "C" never increases, either you put batterys in parallel or in series, only overall capacity and voltage changes.

Charging those batteries in series would make a 6s 5000mah pack, so a 1c charge would be 5a and a 2c charge would be 10a. I would charge it at 5a.

I would stick to a 1c = 5amp charge rate for that lipo.

Thanks you guys! I just read that in the user guide lol, I figure I'd use 8A but since yall said you'd use 5A then I'll just stick with 1c...
Here's my next question:
So I can read 22.4v at the battery ouput, but when I connect it to the charger and I do the *Battery Check* function, it says "battery output error" like its not connected...any thought on this?

Do you have the balance tap plugged in?

Also, are you using a built-in balancer, or an external one? Some external ones, such as the LBA10 actually need to be turned "on" before the charger can read anything...

Yes, I do have the balance tap plugged in.

It has an Internal balancer, it is the hyperion eoso610inet...I set the memory params, (Lipo 6s, 1c charge rate, etc..) and when I hold down the enter key to display the balance status, it tells me balancer not connected, but now it does pick up the voltage when I hold the enter button for the battery check ever since I switched the ..and says "Balancer advised!" and starts charging without the balancer..
Is there a certain setting to make it detect the balancer? I've tried both with the little adapter and just the 6s balanceer plugged directly into the machine itself, and it cannot read the balancer either way. BTW balancer is at 44% what does that mean?

This is the adapter that I soldered both the 3s lipos onto:
http://cgi.ebay.com/ws/eBayISAPI.dll...lenotsupported

and this is the balance adapter that actually came with the charger:
HPLB10EHB

S I made the harness and used only 1 of the 2 positive balancer leads

ok I got it working now, thats all folks!