Li-ion 18650 Charger DIY a solution with a

DIY a solution with a trip to your hardware store

From the outside back of the box tighten the cam screw until snug or overly snug

App Adjustable Flash Brightness

12 foot (3 meter) Camera Power Cable

Li-ion 18650 Charger DIY a solution with aThis battery charger will recharge up to 4 Li ion 18650 Cells at once, and comes with cabling for both AC and Automobile Auxiliary power. The LCD Display will indicate when each cell is fully charged what the full charge voltage is. Over time as 18650 cells begin to degrade, you can periodically perform a full discharge and recharge and get a max charge voltage. This can indicate where the cell resides in its lifecycle.