A battery tester can serve this exact purpose. Battery testers come in various shapes and sizes and can be used for different types of batteries. However, when it comes to small batteries ...

Connect the positive and negative leads to the corresponding battery terminals. Apply the load as specified by the tester for 15 seconds, or as specified by the load tester manufacturer.

However, laptop batteries do not stay healthy forever, therefore, one should always try to have a handy tool on hand to test battery health. The web right now is filled with Windows tools designed ...