How to Deal with Battery Drain After Replacing the Battery?

[SanWeston]

If the battery still drains after replacement, the solution is to check whether the voltage generated by the alternator is normal. If the voltage is too low during generation, it is necessary to inspect the alternator circuit and the alternator itself for any issues. If the alternator is functioning normally, then there is a leakage in the vehicle's electrical system, which requires detection with a multimeter to locate and repair the leakage point. Battery drain can lead to sulfation of the battery. Severe drain may even cause the battery to become unusable. Battery drain refers to deep discharge, where the voltage drops below 10.50V, causing sulfuric acid and lead plates to form lead sulfate. If not recharged promptly, the lead sulfate will crystallize. Over time, these crystals will not decompose during recharging, a condition known as battery sulfation.