Keeping one in your car's trunk means you don't have to rely on a passing traveler with a pair of jumper cables.

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 ...

When it comes to jump starter packs, those features are only the start. What else can it do? On a single charge, a portable car battery pack or charger can power your high-draw laptop computer ...

Add one to your emergency kit and never worry about a dead battery leaving you stranded again.

Right now, the GOOLOO GP4000 Jump Starter is available for just $85, a massive 50% savings off its regular price of $170.

On sale for $61, it's a trunk-worthy companion that offers backup not only for your car, but your phone and other gadgets.

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 ...

Battery jump starters can also recharge phones ... you can save on a lighter duty 2,000-amp option if you don’t need such a large pack. For under $100, this portable jump starter is capable ...

Having a portable jump starter in the trunk means not having to depend on anyone to get out of dead-car-battery situation Reviews and recommendations are unbiased and products are independently ...

Amazon has this portable car battery jump starter on sale for 37% with an additional secret discount that will save you even ...

Zarrin Ahmed is a Deals and Commerce writer at CNET. She loves helping people find great deals on products they can't live without, things they want, and things they never knew they needed.