Battery drops when A/C is on.
Thread Starter
Junior Member
Joined: Apr 2005
Posts: 4
Likes: 0
From: Fort Worth, Texas
Car: 1988 Camaro RS
Engine: 305
Battery drops when A/C is on.
The battery gauge will constantly drop when the A/C is on at low speeds. Not just go down when turned on and then goes back up, but continues its descent unless you turn off the A/C. Well over stock amp alt and 900 cca battery are new. wires were also changed from alt to battery to go with the bigger alt. While this is going on the car also over heats. But that is in the 'cooling' board.
Supreme Member
iTrader: (1)
Joined: Oct 2004
Posts: 3,361
Likes: 1
From: Worcester, MA
Car: 86 T/A
Engine: HSR 355
Transmission: 700R4
Axle/Gears: 2.77 posi
Mine did that too. The AC draws a fair amount of power, it needs the engine to rev up and cause the alternator to crank out more juice.
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