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 ...

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 ...

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 ...

Numerous gadgets, from remote controls to hearing aids, depend on small batteries. It’s vital to know when these batteries are close to being drained so they can be substituted before they’re fully ...

A while ago, I came across the BT-168 Battery Tester. It seems to be cheap and widely available. Because I wanted to see what’s inside, I decided to order one from an online seller, and managed to get ...

“This battery monitor reports to my phone as soon as I get into Bluetooth range.” The Ancel 12V Car Battery Tester is $24, $16 off its $40 list price. That’s a sizable discount on a device that could ...

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 ...

The Topdon BT200 Battery and Charging System Tester showed up at exactly the right time. I’ve gotten a couple of sporadic check engine lights from a low-voltage code with no noticeable difficulty ...

Every car battery is some amount of time away from failing, so the only thing for anyone with a car, motorcycle, truck, RV, ATV, boat, or other 12V battery-dependent vehicle can do is to make their ...

This circuit runs a fast battery test without the need of power supply or expensive moving-coil voltmeters. It features two ranges: when SW1 is set as shown in the circuit diagram, the device can test ...

It’s no exaggeration to say that the development of cheap rechargeable lithium-ion batteries has changed the world. Enabling everything from smartphones to electric cars, their ability to pack an ...