What to Do When a Car Battery Won't Charge?

1 Answers
VanBrooke
07/29/25 10:22am
Check if the battery is low on electrolyte. If the electrolyte has dried up, first add distilled water. After adding enough, do not replace the battery's filler caps. Connect a 220V ordinary incandescent bulb in series with the battery and then to a household 220V AC power source to see if the bulb can light up normally. If the bulb lights up normally, continue supplying power for about 1 minute before disconnecting. Wait a few minutes, then connect again for 1 minute. Repeat the above step three to five times, then connect the battery to the charger for a normal 15-hour charging session.
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