New Products Flash Sale
Thread Tools
Old Apr 13, 2004, 06:29 AM
lynnpreston is offline
Find More Posts by lynnpreston
Registered User

Charge identical packs in parallel at higher current?


Is it ok to connect multiple identical Li-po packs in parallel and charge them all at once at a very high current? For example, if I have four 2000 mah packs, normally I would have to charge each in turn at 2 amps. However, if I connected them all in parallel using a parallel connector, could I charge them all at once at up to 8 amps? I've done this before with NiMH, and I can't see how it's different than simply having one pack composed of several cells in parallel. I just wanted to see if anyone else is doing it. It would sure cut down on charge time.
Sign up now
to remove ads between posts
Old Apr 13, 2004, 07:41 AM
RD Blakeslee is offline
Find More Posts by RD Blakeslee
Registered User
Quote:
Originally Posted by lynnpreston
Is it ok to connect multiple identical Li-po packs in parallel and charge them all at once ... For example, if I have four 2000 mah packs, normally I would have to charge each in turn at 2 amps. However, if I connected them all in parallel using a parallel connector, could I charge them all at once at up to 8 amps? ... I just wanted to see if anyone else is doing it. It would sure cut down on charge time.
I use a variable up to 20 amp, 30 volt regulated DC power supply to do that.

Nominally identical packs may not be, for a number of reasons, so I also check the initial amperage into each pack with a Sears clamp-on digital ammeter. In your case, it should be about 2 amps for each pack.

- RD
Old Apr 14, 2004, 08:49 AM
lasllc is offline
Find More Posts by lasllc
Registered User
i do my 3s2p 1500 and 2100 packs using the parallel current value (3000 and 4200); no problems.
but i also have them set up as sperate 3s packs externally tied into a parallel arangement so that i can check pack voltages or charge the 3s packs by themselves.
Old Apr 14, 2004, 08:56 AM
lynnpreston is offline
Find More Posts by lynnpreston
Registered User
Yeah, I plan on doing the same. I run them as 3s1p packs and just connect them in parallel to charge them.


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Discussion nimh packs in parallel, higher discharge? SFGuy Batteries and Chargers 2 Aug 03, 2007 06:46 PM
Can you charge LIPO packs in parallel ??? Mavrik Batteries and Chargers 5 Nov 03, 2005 09:00 PM
Kokam 3s2100 20c lipos: Charge 2 packs in parallel? Michael in Toronto Batteries and Chargers 1 Aug 26, 2004 03:37 PM
Question Running battery packs in parallel... DavidHyams Batteries and Chargers 8 Oct 19, 2002 06:15 PM
Question Charging packs in parallel Darren Hintze Parkflyers 7 Jan 03, 2002 04:59 PM