How long should the second charge of a new battery be?

2 Answers
StNolan
07/24/25 3:01am
Before the second charge of a new battery, it should be charged when the power is almost exhausted, and the charging time should be 8-11 hours. The following is an introduction to the battery: Introduction: The battery is a type of storage battery, also known as an accumulator. Its working principle is to convert chemical energy into electrical energy. The battery commonly referred to by people is a lead-acid battery, which is mainly composed of lead and its oxides as electrodes and sulfuric acid solution as the electrolyte. Classification: Ordinary battery, dry-charged battery, maintenance-free battery. Principle: The negative electrode is made of a lead plate filled with sponge-like lead, the positive electrode is made of a lead plate filled with lead dioxide, and 22-28% dilute sulfuric acid is used as the electrolyte. During charging, electrical energy is converted into chemical energy, and during discharging, chemical energy is converted back into electrical energy.
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Daisy
08/10/25 10:34pm
Hey, I've been driving for many years, and the second charging of a new battery is quite crucial—don't rush it or delay it too long. Generally, I use a slow charger for about 8 to 10 hours, like plugging it in on Friday night and waking up to a fully charged battery in the morning. This way, the battery can be fully rejuvenated. Remember to place the battery in a well-ventilated spot in the garage before charging to avoid overheating and potential fires. Why does it take so long? After the first use, a new battery might have slight discharge, and the second slow charge helps balance the electrodes to prevent aging, extending its lifespan by several years. I always do it this way—it saves money and hassle, reducing the risk of breakdowns on the road. In short, adjust according to your charger type; if it has smart features that automatically stop charging, it’s even more convenient.
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