I have a solar panel with the following specs:
Material: Monocrystalline
PM: 2w
Voc: 22.28 V
Isc: 0.15 A
Vmp: 18V
Imp: 0.14 A
Size: 14.9cm x 15.5cm
Gross weight: 0.3 kgs
Max system Voltage: 1000v
and I want to know if I can use that solar panel to charge a 7 amp, 12 volt electric wheelchir battery or if I have to buy another kind. It is for use on a blackout to charge my laptop, and stuff. I have a dc meter and input, but do I need an inverter? Thanks. I would appreciate it if anyone could answer any part of this question.