![]() ![]() How long to charge a battery at 6 amps? To fully charge a battery at 6 amps it takes 8 hours. A battery has around 48 amps, so divide 48 by 2 and you arrive at 24 hours. How long to charge a battery at 2 amps? It takes 24 hours to fully charge a 48 amp battery at 2 amps. If you don't want to do any math, we did it for you below. ![]() If you charge it too fast (anything more powerful than 16 volts) you can damage your battery. It's important to note, that if your battery is completely dead, a slower charger is a healthier way to charge it. My Battery is Still Good If you've decided your battery still has some service left in it, here is how long it takes each charger to get your battery up to full health. However this usually isn't a problem until winter comes and fluids thicken, requiring more energy from your car battery to get it started. This happens due to the summer heat can causing fluids in your battery to evaporate, reducing its effectiveness. So if you live somewhere that regularly sees freezing temperatures or triple digits, your battery already has a shortened lifespan. Extreme weather is particularly harsh on batteries. For example if your charger charges at 6 amps an hour, 48/6=8, so it will take 8 hours to fully charge a battery.īut before you throw a charger on it, let's see if your battery is worth saving.įirst, if your battery is at least 3 years old it may be worth replacing as most batteries last about 4 years.Īlso consider that if your battery is fully dead, it will be permanently damaged and can potentially strand you again.Ĭar Batteries in Cold Weather Your climate also affects battery health. How Long Does It Take To Charge A Car Battery?Ī car battery has 48 amps, so depending on how many amps your charger has, divide 48 by the charging rate and that is how many hours it takes. ![]()
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