Does Rain Affect A Car Battery. If you disconnect your battery you reset your cars computer and it will need a bit of time on the road to run its tests again. I bought a new battery for my car and the first time it rained it died and the car had no power.
The humidity levels present during heavy rains may contribute to corrosion forming at the battery connections but such conditions rarely affect battery function or internal components. If your alternator has a bad diode your battery can drain. I let the car run for a while but when I came back out to start it a few hours later it was dead again.
Based in Orange County David Flask has.
I let the car run for a while but when I came back out to start it a few hours later it was dead again. This simulates the summer. I charged the battery and put it back in in a very light rain and started the car. I let the car run for a while but when I came back out to start it a few hours later it was dead again.
