GOOLOO Jump Starter 1500A IP65(Up to 8.0L Gas or 6.0L Diesel Engine)12V Portable Booster with quick charge - £59.99 @ Landwork / Amazon

POWERFUL CAR JUMP STARTER】The portable lithium car battery jump starter pack can easily jump start a dead 12V battery in seconds with its 1500-amp peak current, even in extreme temperatures (-4°F~140°F) - workable for gasoline engines up to 8 liters and diesel engines up to 6 liters - up to 30 jump starts or can stand by for more than 12 months on a single full charge .【WATER RESISTANT】The smart jumper cable has built-in 10 advanced protection technologies to free your worries of incorrect connections or sparks. Also this safe and easy to use car battery jump starter pack has rubber cover over each port enables you to use it in rainy days.
【MULTI-FUNCTION POWER PACK】The GOOLOO GT1500 portable car battery jump starter box is equipped with a 15W Type-C In/Out Port(5V-3A),two USB ports(a QC3.0 port included) to recharge smartphones, tablets or other USB devices. And a 15V/10A output to power tire inflator, portable car vaccum,etc. Also can be used as a super bright LED light with 3 modes: Flash Light, Strobe Light and SOS Light. A real lifesaver in emergency situations.
【WHAT’S INCLUDED】1 x GOOLOO Compact GT1500 Lithium-ion Jump Starter, 1 x Smart Jumper Clamp, 1 x Cigarette Lighter Adapter, 1 x USB to Type C Cable, 1 x Car Charger, 1 x Carry Bag, 1 x User Manual（No wall charger included）.
【SIGNAL CONTROL】Gooloo GT1500 lithium-ion jump starter is a new product that has never been manufactured before. The signal of load connection type is directly sent to the switching circuit rather than the microcontroller.