How to Identify Battery Quality

1 Answers
SanAriel
07/29/25 6:37pm
Methods to identify battery quality: 1. Check if the voltage is balanced when the battery is not under load, ideally reaching 12V or above; 2. When connecting a heating wire to the battery, use a multimeter to measure the current, with normal usage ranging from 10 to 12A; 3. Measure the battery voltage, and when it drops to 11V, observe if there is any discrepancy. If there is, continue discharging until one battery reaches 10.5V, then check if the difference between other batteries is 0.8V. A difference of more than 0.8V indicates a weak battery. Car batteries, also known as storage batteries, are a type of battery that works by converting chemical energy into electrical energy. Typically, the term 'battery' refers to lead-acid batteries, which are mainly made of lead and its oxides, with sulfuric acid solution as the electrolyte.
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