Bench supply for parallel charging cells

2 posts / 0 new
Last post
colin9876
Offline
Last seen: 7 years 10 months ago
Joined: Thursday, October 23, 2008 - 11:37
Points: 289
Bench supply for parallel charging cells

Ive just ordered a 0-20v 10amp variabe supply to use charging my LifePo4 cells in parallel

Can someone advise me on this (probably basic) question?
The supply has 3 outputs, a red positive, a black negative and a Green GROUND output in the middle.

Im going to set the charger to 3.7v 10amps, Im assuming I use the Red and Black +ve -ve outputs to go to the cell terminals? When would I ever use the GROUND??

Spaceangel
Offline
Last seen: 5 months 2 weeks ago
Joined: Wednesday, July 15, 2009 - 15:49
Points: 500
Re: Bench supply for parallel charging cells

I have a lot of Thunder Sky cells and they all test with different impedance and I forced charged a lot of current in parallel pack and one swelled up big time. Just one cell. massive prego. I guess that is what they mean about using BMS?
I have a bank of 12 volt Gel Cell all paralleled for 8 years and they still have 5000 AH total at 16 batteries.
Maybe just try it on your bench top power charging station. It seems like a good way to weed out something?
The reason why I did that with the TS cells is I needed about 3 volts at 120 Amperes for a few minutes. I used an electroplating power supply and dialed up 150 Amp charge rate with #2 AWG cables that were still cool to the touch.
Normally you can parallel with no problems but I nearly blew one cell big time.

KB1UKU

Log in or register to post comments


Who's online

There are currently 0 users online.

Who's new

  • pkvgameshouse
  • toomanyscoots
  • daftarpokerqq
  • Jacupp
  • micarr

Customize This