nicholaswilde / solar-battery-charger

:battery: A solar battery charger to charge lithium ion (li-ion) 18650, 9V, and coin batteries and Ni-MH AA and AAA batteries. :sunny:
https://nicholaswilde.io/solar-battery-charger/
Apache License 2.0
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Low battery voltage causes low current recharge #40

Closed nicholaswilde closed 2 years ago

nicholaswilde commented 2 years ago

It is possible for the battery voltage to dip to 1.8 VDC due to the Powerboost and the lack of a battery protection circuit. With this low of a voltage, the charging current becomes very low (~78 mA). Once the battery voltage raises above a threshold (~3 VDC), the charging current increases drastically (~500 mA).