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It depends on how long the battery has sat around from where it was purchased. Its never a bad idea to fully charge a battery before its first use. Most new batteries only have roughly an 80% charge. An alternator is not designed to full charge a battery but maintain a healthy one. By charging a new battery you ensure that your getting the most out of it by not allowing sulfation from charging and discharging to the batteries original 80 percent.

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Q: Should you charge a new car battery before installing?
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What should you do if battery was not charged before installing new alternator?

My advice is to charge the battery with a battery charger before starting the engine. You will be putting a heavy load on the alternator if you allow it to charge a dead battery. This could damage the alternator.


Do you fit a car battery if the voltage is under 12.4v?

A fully charged battery will read 12.6 volts. A battery reading 12.4 volts is 75% charged. 12.2 volts = 50% charge, 12.0 = 25% charge. You should use a battery charger to charge any battery reading less than 12.4 volts before installing it on the vehicle.


Should you add water to a battery before or after you charge it?

Add distilled water before for you charge it. Do not use tap water.


Will battery recharge after bad alernator is replaced?

An alternator is designed to keep a fully charged battery at peak level. It is not designed to charge a dead battery. Installing a new alternator on a car with a dead battery can in some cases ruin the new alternator. Fully charge the dead battery before starting the engine.


How long should you charge a 3600mah psp battery?

Good question. Charge it for a full 24 hours before use so it gains full battery


Should you charge a new battery?

Rechargeable batteries normally have to be charged fully before first use.


Is it ok to charge an iPod battery before it is fully discharged?

It is always good to charge a battery to its full capacity before it is fully charged.


Just installed a new alternator and belt on 1999 blazer - the new alternator is very hot your husband has leather hands and says it very hot Everything is grounded properly?

is your battery Low or poor?? Charge your battery on slow charge for 8hrs to give it a good deep charge, Installing an alternator on a low or dead battery will ruin it and also not charge your battery properly.. An alternator is not a battery charger its a battery maintainer!!


Why does the battery meter stay in the yellow zone after installing a new alternator on a Pontiac Firebird?

If the car has a bad battery the battery will not charge just becaus you put a new alternator in try raplacing the old battery.


Should a mobile phone be discharged before recharging?

Its good for it. Any device with a chargible battery is better off letting the battery run all the way down before a recharge due to the fact that battery's in general have a certain ammount of charges they can do before it gets worn out. So yes, it is good to charge a completely dead battery then starting to charge half way.


Clean The Battery Before Charging?

Before you charge a car battery, it is a good idea to clean off the connectors. If these are dirty or corroded, you will not get a good connection. This can make it take much longer for the battery to get a full charge. Cleaning it will only take a few seconds. You should do this each and every time that you have to hook it up to the battery charger at your house.


What could cause battery to die offten?

If your over charging your battery it ruins the battery therefore it will no longer holds a charge like it should. Trust me I killed two batteries before I learned why.