Jumpr from JunoPower is not only a power bank that can charge your device’s battery on the go, but also a car accessory capable of bringing a dead automobile or motorcycle battery back to life.
Jumpr measures 139 x 75 x 15 mm and produced 12 Volt output at 300 Amps peak, which is just enough for a little boost for your car’s battery, working with 4-Cylinder and 6-Cylinder engines, or 4.8+ Liter automobiles.
The portable battery has a capacity of 6000 mAh and has two outputs: the 12 V cigarette port and microUSB, supporting over 500 charging cycles. You can use it to recharge the battery of your phone, tablet or other device featuring microUSB connectivity.
Read more about it at JunoPower where you can buy one for $69.99.