To change or not to change the battery?


#1

I would like to know if anybody has had the following experience: a friend said that 2 of 4 wires were corrected to wires they should not have been. He changed them, connecting them “correctly.” I don’t remember how long it took, but after he did that, the battery died and could not be charged. I bought a new battery. Two days later, it was dead and would hold a charge for only around 2 hours, after which it could not start the engine. I have a new battery sitting here that I will not put in because it would be junk in 2 days. Anybody hear of anything like this?


Turning off your car at 55 mph
#2

@Snagglepuss I moved this to a new thread. You might want to supply a bit more info so others might try to help you.


#3

I assume you mean “connected” not “corrected”?

Don’t let this friend work on your car again. Un-do what your friend did, and charge your old battery and it should be fine.

A dead car battery is not like a flashlight battery. Car batteries are meant to be recharged.


#4

Your friend’s creative wiring may have damaged the alternator or simply disconnected it. What is the year, make, model, and engine of your car?


#5

Without knowing what these wires are, there’s very little we can do to help. Can you attach a picture, perhaps?


#6

I can only echo what Mustangman said…never let this “friend” near any of your vehicles. Never.


#7

This friend is not a neuro surgeon I hope. Put it back again.


#8

In addition to the other valid replies, I have to wonder whether the OP’s “friend” (???) is merely incompetent, or if this was actually an attempt to sabotage the OP’s car.
:thinking:


#9

Never ascribe to malice that which is adequately explained by incompetence…


#10

Getting wires crossed in cars like that can often blow an alternator diode. That’s my guess. Check all the fuses of course first, including the fusible links. Another idea , install the new battery but do a phantom current measurement immediately.