Beef up your project with a rechargeable lithium-ion battery using this four cell 18650 battery holder. This is a great option for when you want to take the cells out of your device and recharge them separately.
Suitable for 1-2 18650 lithium-ion rechargeable batteries. When charging the red light, the green light fully charged, with an anti-reverse charging function.
With over-voltage over-current short circuit protection, safe and reliable battery charging.