Hi,
I'm reaching a problem with bq25703a. I have already designed Li-Ion battery charging station(adapter input energy always ON) which will charge 2 series li-ion battery. It works good but there is a problem.
Lithium-ion batteries self discharging after period of time (Example 3 months, 10% capacity drop). I want battery to recharge after it goes down to a charge voltage threshold.(Note: During this time, the adapter/input is always ON). Charging starts when the battery voltage level drops below the charge voltage threshold. But the problem is here. Unfortunately, charge is never stop. It does not switch to constant voltage(CV) mode. It continues to charge with constant current(CC). This is very dangerous for li-ion batteries.
NOTE: For test, after the fully charge termination I discharged a battery with resistor when battery still stay in the charge station. (For minimum charge voltage threshold)
I hope you understand the system. Do you have any suggestions? How can I solve this issue with the software?
Thanks a lot
