Why does my motorcycle battery drop when I turn it over?
If the battery only measures to a maximum of 10.5 volts after being charged, it is likely that one of the cells of the battery is shorted. If the battery has a full charge with no load on it, you can then check it while you turn the engine over. A battery may fully charge, but then drop significantly when under load.
Why does my battery die when the car is off?
If voltage drops when the battery is connected to the car you have a short. If voltage drops only between battery connected and engine on, your charging system is shot. Good luck and let us know! Was this answer helpful? I just went through this with my van. Battery died with the van off and the radio on for more than 5 minutes.
Why is my van battery constantly Diying?
Battery died with the van off and the radio on for more than 5 minutes. Literally jumped it all the time. I replaced the battery, battery didn’t work. Found out it wasn’t charged when I bought it (as a lot of places don’t pre-charge them now) so I charged it and it worked fine.
Why does MY BMW battery not charge at full capacity?
Additional problems that can cause this issue include. Although the car will run with no noticeable issues when the alternator output is between 11 and 13 volts, it will not charge a battery to full capacity.
Why does the battery Guage drop to zero?
Once it drop it stays there until the truck is shut off and restarted. There’s a code P1682 battery charging voltage low. I’m assuming it’s either a bad connection on a problem in the PCM. Disconnected and re-connected the plugs on the PCM.
Why does the battery voltage go all the way down?
When it does it the voltage gauge on the dash goes all the way down. Then shutting the truck off and turning the key on (not starting the engine) the gauge reads a normal reading. Also the 14.0v at the battery makes it look like the alternator is charging. EDIT : It was the alternator (read further down for details).
Why does my battery drop when I start my car?
The electrical problems related to excessive voltage drops are more common than you may realize. Think of your starting and charging cables as a two-way street. The battery needs to deliver its available power to the starter through the cables and connections for cranking the engine.