Making packs from Lipo cells which already have protection boards.
Making packs from Lipo cells which already have protection boards.
(OP)
Hi Folks,
I'm looking at making a battery pack from six of these cells:
http://docs-europe.electrocomponents.com/webdocs/1...
I need either 2 x (3 in series) in parallel or 3 x (2 in parallel) in series , to give a nominal 11.1V 4Ah.
If they were unprotected cells then I understand I'd need to be using protection / balance boards like this:
http://www.all-battery.com/pcb-11-1V-13A-32051.asp...
However these cells already have an overcharge / undercharge protection circuit built in (details are in data sheet above) and I'm unclear about how they might interact. Can I just wire up the packs (after a topping up charge of all cells to balance them)? If so, Which topology of (3 Serial )x 2 Parallel or (2 Parallel ) x 3 Series is preferable?
All info welcome!
Cheers,
Robin.
I'm looking at making a battery pack from six of these cells:
http://docs-europe.electrocomponents.com/webdocs/1...
I need either 2 x (3 in series) in parallel or 3 x (2 in parallel) in series , to give a nominal 11.1V 4Ah.
If they were unprotected cells then I understand I'd need to be using protection / balance boards like this:
http://www.all-battery.com/pcb-11-1V-13A-32051.asp...
However these cells already have an overcharge / undercharge protection circuit built in (details are in data sheet above) and I'm unclear about how they might interact. Can I just wire up the packs (after a topping up charge of all cells to balance them)? If so, Which topology of (3 Serial )x 2 Parallel or (2 Parallel ) x 3 Series is preferable?
All info welcome!
Cheers,
Robin.





RE: Making packs from Lipo cells which already have protection boards.
Hadoo
Design Eng at www.lianinno.com