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 ...

A car battery is a crucial component that plays a vital role in the operation of a vehicle. Its primary function is to provide electrical energy to start the engine and power various electrical ...

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 ...

“I firmly believe this is one of those products everyone should have on hand.” Right now at Amazon, the Ancel Plus Car Battery Tester is on sale for just $56 while it’s half-off, and it offers a ...

If you’ve ever experienced the sinking feeling of a car that won't start on a cold morning, you know that a reliable ba ...

For example, if you have a battery test system with a single-ranged current measurement system, the tester will have a single current measurement accuracy specification like ±0.2% of full scale. If ...

️ Editor's note: This article was updated with new information in December 2025. Dead batteries are a predictable reality for any car that spends more time parked than driven. Battery discharge does ...

Autoblog aims to feature only the best products and services. If you buy something via one of our links, we may earn a commission. Car battery testers have become one of those tools that move from ...