I am looking for some help changing the Power Management IC battery charging voltage & current settings.
From my testing it looks like the battery is charged to 4v and not much more which is safe but it never brings the fuel gauge up to 100% full because the battery charge voltage is not brought up high enough.
I would also like to raise the charging current limit since the chip is able to charge up to 4 Amps of charge current, it looks to be set at 500mA for now. I want to charge higher capacity batteries quicker.
This TI chip is a good one and I’m happy they choose to use it.
From the firmware reference docs I found the code to make the changes but I need some guidance on how to use this properly. See below:
Do I just put a new voltage in the () brackets? Like bool setChargeVoltage(4.20 or 4200); ?
And I really need help with understanding the code that set’s the charging current.
If anybody can provide examples I would love to see it.
I would love to use LiFePo4 type battery cells due to their long lifespan and I can by changing the charge voltage settings but I’m think the fuel gauge is designed for reading LiPo cell voltage curves only which would make it useless with the LiFePo4 cells.