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I'm looking for help determining what size of solar (PV) I should use to recharge my Li-po battery after discharged.

Battery Characteristics :Capacity:1600mAh

Nominal Voltage: 3.7V

Charging Current:0.2CA=(320mA)

Charging Voltage: 4.2V

Charging time (std):6 to 7 hours

Charging time(max): 2 to 3 hours.

Solar (PV) I have looked at a couple solar cells like the Digikey solar SM101K09L. This is a MONOCRYST SOLAR CELL 198MW 6.22V can anyone help determine how long it would take to charge this battery with the solar cell I have mentioned above? Is there any other product you would recommend?

Solar panel spec

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A Li-PO battery should never be completely discharged. Its load should be disconnected when its voltage drops to 3V to 3.2V. A Li-PO is dangerous if it is not properly charged by a battery charger circuit designed for it.

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