USB rechargeable pencil battery

After countless pointless USB devices, someone has finally come up with a product that can be considered useful.

The AA NiMH 1300 mAh pencil battery from the British Moixa USBCell can also be charged when connected to USB. The manufacturer claims that after 5 hours of continuous charging, more than 90% of the energy used can be recovered. We are informed about this by a small display that shows where we are. Of course, we can also use a conventional battery charger for this purpose, but in this case we have to wait as long as 7 hours to complete the operation.

The two-piece device is available in the UK for £ 12,99, which equates to a purchase price of around £ 5000.