Author Topic: LiPo balance port for dual supply opamps  (Read 179 times)

0 Members and 1 Guest are viewing this topic.

Online paulca

  • Super Contributor
  • ***
  • Posts: 1720
  • Country: gb
LiPo balance port for dual supply opamps
« on: December 03, 2017, 05:09:56 am »
The voltage across LiPo balance pins caught my attention.

Using a 3 series Lipo the voltages are:

0-1: 3.7V
0-2: 7.4V
0-3: 11.1V

Interesting ....


1-0: -3.7V
1-2: +3.7V


2-0: -7.4V
1-3: +7.4V

Those look handy.

Looking towards that target of +-12V ... you could series the balance ports, maybe.  Then I realised if you are going to use two batteries you might as well use two lipos for the full +12.6V and -12.6V.  Then again series across different trios of cells across the packs might help differentiate out the charge voltage differences between the batteries.
"What could possibly go wrong?"
Current Open Projects:  3 Channel Audio mixer with DAC, BT, pre-amps and h/phone amp, WS281x LED controller Version 2 5V/5A w/Atmega328, FY6600 Power supply, 5A DC Load (Still!)

Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo