Battery Light Beeping? Decipher Electrical System Anomalies

Many reasons for this, bad battery, bad alternator, etc. I suggest checking the battery voltage, car off, and then hooking the battery up to a 2-10 amp charger ... It's more than likely that your alternator is bad. As has been said, that idiot light is an under-voltage indicator. The car will run fine for a ... The normal reading for a fully charged battery would be more or less 12.6, with the engine off and no lights on. Once the engine is running, ... But, to ensure a safe charging voltage, the alternator's power must first go through the voltage regulator. If these critical elements fail or ... I hooked up a voltage meter to the battery with the car off, and it gets a solid 12.5v (fairly newish battery.) With the car running, I tested ... There will be warning lights still, but the battery light will be off. If you rep the engine over 4,000 RPM, then the battery light will come ... but everything runs fine electrically when running...as in lights ... hi all , wife went to open car today and noticed the battery light ... ... but now the battery light is on. I tested the battery with a meter. It's fully charged when off and reads over 14 V when the car is running. Tangent but perhaps related: In one of the not-a-Honda cars I casually chased a similar issue for a while. ... The problem turned out to be ... The light means the alternator isn't charging. Hard to say whether it is related to the pothole. I had a pothole ruin a battery by breaking an internal ...