14500 Battery (4pcs) to 18650 Converter / Adapter / Holder / Charger

Converts up to 4pcs of 14500 Sized Battery to 18650.

This adapter/converter allows you to charge/discharge up to 4pcs of 14500 battery in parallel using a 18650 charger/device.

I designed this to allow me to quickly charge my 14500 using a 18650 powerbank. It also acts as a storage box for the batteries. You can also use this to increase your battery capacity for devices that uses a single 18650 battery and has the space to allow the battery to protrude (perhaps with the cover off)