Portable Car Jump Starter with Air Compressor, Nepal Ubuy GPED Portable Car Jump Starter, 4000A Peak, 39800mAh, 12V Battery Mobile Car Jump Starter How to Use a Portable Jump Starter (Step by Step Guide) Vantrue Buy Jump starter mobile with battery online. Mobile Car Jump Starter UMAP 12000 C4 2 in 1: car starter and powerful external battery Direct start with high current pulse (approx. 500 A 12 V) without prolonged recharging Protected against reverse polarity, short circuits and overloads as well as against sparks State of the art lithium ion technology with powerful LiFePO4 battery Higher electronic efficiency: up to 90% usable battery capacity* Particularly long service life thanks to high cycle stability Very low self discharge Available capacity in USB operation (1 A 2 A outputs): 7000 mAh 12V connection (maximum 8A) compatible with other items (e. g. heated seat cushion) Includes a 12V adapter, jumper cable and USB C charging cable for mobile phones and tablets with a USB C port Charging status display via 4 LEDs Switchable LED flashlight with flashing function In a practical storage and transport bag No power supply sustainable and environmentally friendly Automatic starting aid suitable for petrol engines up to a maximum displacement of 3. 0 l and diesel engines up to a maximum displacement of 2. 0 l Battery: Lithium ion 12 V (12,000 mAh at 3. 2 V 38. 4 Wh) Built in LED flashlight suitable for temperatures down to 21C