What keeps a car battery from overcharging?
A typical vehicle electrical system is designed to satisfy the battery charging Voltage. It is not an ideal charger but it works reasonably well. A Lead-Acid Battery can be maintained without overcharging at 13.5 Volts. The voltage regulator in a car charges and maintains the battery very well.
What causes an alternator to overcharge on a stock car?
When the wrong alternator has been installed in a stock vehicle or if the pulley has undersized dimensions (causing extra alternator rotation), the charging supply will be higher than the demand and cause an overcharged state. High performance or racing alternators should not be installed on stock passenger vehicles.
What causes a car battery to overcharg?
Improperly jump-starting the vehicle can send a surge through the battery that destroys one or more cells in the battery or shorts it out. This surge disrupts the wiring in the alternator, causing an overcharging condition. Additionally, an incorrect replacement battery in the vehicle can cause an overcharging condition.
Can a stuck contact switch cause an alternator to overcharge?
A stuck contact switch that refuses to disengage will cause an overcharging problem. The internal regulator, or “internally regulated” regulator, has been used as a replacement for older, externally mounted regulators. The internal regulator mounts inside the alternator case (consolidated), with a smaller and more compact design.
Can a racing alternator be installed in a stock car?
High performance or racing alternators should not be installed on stock passenger vehicles. The external regulator, usually mounted on the engine firewall or fender well, supplies current to the internal rotor field coil inside the alternator. It regulates the amount of electricity that the alternator needs to perform at different speeds.
Can a sports car alternator be overcharged?
If a sports car alternator is fitted to a stock passenger car, there will raise overcharging issue. Alternator overcharging occurs if a regulator cannot read the electricity level correctly. If the alternator’s size and output do not match according to the vehicle requirement, the alternator becomes overcharged.
What should I do if my Alt is overcharging?
Check your YP, find local rebuilder, take alt in, tell them what’s up, and it should only take a few hours if you talk nice to them. They have other work.
Why does my car charger keep overcharging?
‘NOTE: If a vehicle has a history of repeat alternator failures, it might mean the battery is not building up normal resistance as it accepts a charge. This, in turn, makes the alternator keep charging the battery at a higher than normal rate. The result is that the alternator runs hot, overheats and eventually fails from being over worked.
Is the alternator on my Buick overcharging?
I have a 2006 Buick LaCrosse with the 3.8 L motor. Last week I found out that the alternator was overcharging (charging at around 15.5-15.7 volts.) The car has 72000 miles on it.