Suppose my input source is a generator, with an input power of approximately 200 microwatts and a maximum input current of 200 microamperes. However, when designing the energy management circuit with BQ25570, a 3.7V 5mAh battery can be fully charged, but a 3.7V 55mAH battery cannot be fully charged. The voltage at both ends of this battery is 3V and it won't charge. What's going on? What are the improvement methods?
