Are your AA rechargeable batteries dying after only a few minutes of use? The WizardOne MH-C9000 Battery Charger and Analyzer can give them little bit more life through analysis and conditioning. In ...

For a battery charger to get our attention, it usually has to employ a unique means of charging the batteries -- like USB or windmill power -- but sometimes plain old overkill is enough to get us ...

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 ...

This article was updated with new information in December 2025. A vehicle’s performance starts–no pun intended–with its power source, making battery care one of the most important—yet ...

The OptiMate 3 is a small and compact motorcycle battery charger. It is claimed to have the ability to de-sulfate batteries in addition to its normal battery maintenance charging duties. UPDATE: See ...

While an on-board diagnostics scanner is a great tool for figuring out what’s wrong with your car, it won’t provide much data regarding the battery. For that, you’ll need a dedicated car battery ...

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 ...