How did you charge the battery form solar since that last chip you provided only steps up the battery to 5V
Was it with this one (TP4056) getting this:
This is the data:
The input voltage: 4.35-6 v (recommended voltage 5 v)
Charge cut-off voltage: 4.2 V + / - 1%
Maximum charging current output: 1000 ma
The battery overcharge protection voltage: 4.28 V
Battery overcharge lifting voltage: 4.00 V
The battery discharge protection voltage: 3.0 V
Battery discharge termination voltage: 3.2 V
Battery: over-current protection current 3 a
The board size: about 2.5 * 1.65 CM
Light state: no load the light not bright, red light for recharging, is full of green light.