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 click ...

In this report, we’re testing Topdon’s new V4500 Plus jump-starter on a 12-volt battery that is beyond dead. The product test actually is a precursor to the formal reintroduction of “Project Black ...

They’re everywhere today, but lithium-ion jump starters only first appeared in 2013. Now there are thousands of them (see our favorite portable jump starters), and what was once an expensive specialty ...