The new more compact connecting clamps allow the GB20 to easily connect to the motorcycle and scooter battery. With its 400a of cue can start batteries even completely exhausted. And it does it at least 20 times, even over many months, before it needs charging. Easily recharge your smartphone, tablet and other electronic devices through the USB output you have. And it easily recharges through USB port from different sources. The manufacturer guarantees over 1,000 recharge cycles. It keeps the charge for almost a year. Waterproof and very robust casing (just close the caps of the entrance and exit doors), super-compact dimensions and the weight in about half a kilo make the GB20 a great companion to travel. It works in extreme climatic conditions (-30 to + 50 without making a fold!). Among its additional functions we also find the emergency flashing (convenient during the forced stops in motion after dusk). GB20 is protected against any short circuit. Reversing the connections on the battery or bringing the pliers into contact does not generate any kind of damage or problem: No spark, no spillages, no damage to the battery or the vehicle.