This handy little module board will allow you to charge a single 18650 Lithium rechargeable battery safely. You can connect a 5V solar cell or USB 5V DC source to start charging. The board also has a separate 3.7-4.2V output connection to place your load or battery level indicator.
See related items to buy the solar cell, 18650 Lithium battery, battery holder, and battery level indicator separately.
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