Along with its mighty impressive capacity and performance, the GP4000 takes our top spot for being one of the only portable jump starters with a 12-volt outlet, two USB ports, and one USB-C port. Its ...

A study conducted at the SLAC-Stanford Battery Center has found that charging lithium-ion batteries at high currents right ...

Larger portable jump-starting devices that ... do not instantly start your car. They take 5 to 10 minutes to charge your battery when it's low. But our testing in four vehicles of various sizes ...

Jump-starting with a jumper pack (also called a jump starter, booster pack, or a juice pack) is a better alternative. The ...

There's nothing worse than a dead battery to disrupt your plans, and it can be handy to add a portable jump-starter to your packing list. Portable jump-starters are essentially big power banks ...

Busted hoopties often have dead batteries, making the modern booster pack ... t lug around a heavy battery pack these days, ...

Ability of the Jump Pack to start a weak and dead battery at warmer temperatures of approximately 70 deg. F. A weak battery is when the headlights will come on and the engines starter motor will ...

No longer must you interact with your fellow human beings if your car battery goes flat in the ... be interesting to compare various brands of jump starter; we imagine some have more protection ...

However, there's nothing better than owning the best jump starter your finances can stretch to. It may well get you, or someone else, out of a whole heap of trouble. A flat battery can happen ...

While this can happen in any season, winter is especially tough on your car, and extreme temperatures can cause the battery ...