This tiny keychain is a cellphone battery charger. Attach it to your keys, and have it with you always. When you’re out for a trip and you’ve left your charger at home, then this little keychain will come in handy for recharging the battery of your cellphone.

Just plug this keychain charger into a computer’s USB port for its power, and clip it on the battery of your cellphone, it’ll then start charging the battery. It claims to work with most Li-ion batteries. The best keychain for those who have a tendency to forget to charge the cellphone or always leave their charger behind.

Sourcingmap via Techchee