Testing your battery regularly will prevent a dead battery from ruining your day. There’s only one way to answer the question, “Is it my battery, or something else” when your car won’t start: Hook up ...

The WBT21 is also a watch battery tester with a big voltage display that will precisely test Silver Oxide 1.55V, Alkaline ...

Your car’s battery might seem like a “set it and forget it” part, but when it fails, it can leave you stranded, potentially costing you hundreds of dollars in tow fees or a visit to the mechanic to ...

Forget the Battery Tester. Buy a Multimeter Instead. I found this “Traveller” brand 100 amp battery tester at the local Tractor Supply farm store. They were having a big sale and it was $17.95 and I ...

This 10-second headlight test reveals battery health by checking if lights dim during startup, helping predict failures before you get stranded.

For most of us simple is good and simply functional even better. In this regard the very portable PulseTech Xtreme Charge Quick Battery and Alternator test device makes perfect sense. My advice: get ...

The importance of calibration for all electronic test equipment. The main reason why such equipment must be regularly calibrated. The pros and cons of self-calibration or using outside services. It’s ...

You can salvage lithium 18650 cells from all sorts of modern gadgets, from disposable vapes to cordless power tools. The tricky part, other than physically liberating ...

Many blind and deaf-blind persons use portable electronic devices to assist their everyday lives but it is difficult for them to test the batteries used in this equipment. Talking voltmeters are ...

Need a long-lasting laptop? Here are the longest battery life laptops we've seen in our many years of hands-on testing.