HobbyKing.com New Products Flash Sale
Reply
Thread Tools
Old Apr 13, 2004, 05:29 AM
Registered User
Jacksonville, FL
Joined Dec 2003
112 Posts
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.
lynnpreston is offline Find More Posts by lynnpreston
Reply With Quote
Sign up now
to remove ads between posts
Old Apr 13, 2004, 06:41 AM
Registered User
Joined Jan 2002
6,586 Posts
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
RD Blakeslee is offline Find More Posts by RD Blakeslee
Reply With Quote
Old Apr 14, 2004, 07:49 AM
Registered User
denver, colorado
Joined Nov 2003
243 Posts
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.
lasllc is offline Find More Posts by lasllc
Reply With Quote
Old Apr 14, 2004, 07:56 AM
Registered User
Jacksonville, FL
Joined Dec 2003
112 Posts
Yeah, I plan on doing the same. I run them as 3s1p packs and just connect them in parallel to charge them.
lynnpreston is offline Find More Posts by lynnpreston
Reply With Quote
Reply


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 05:46 PM
Can you charge LIPO packs in parallel ??? Mavrik Batteries and Chargers 5 Nov 03, 2005 08:00 PM
Kokam 3s2100 20c lipos: Charge 2 packs in parallel? Michael in Toronto Batteries and Chargers 1 Aug 26, 2004 02:37 PM
Question Running battery packs in parallel... DavidHyams Batteries and Chargers 8 Oct 19, 2002 05:15 PM
Question Charging packs in parallel Darren Hintze Parkflyers 7 Jan 03, 2002 03:59 PM