12 Volt Battery Chargers
We sell a wide range of 12 volt battery chargers for many different scenarios: For a small sealed lead acid battery to large wheel chargers you would find in a professional garage. We carry 12-volt chargers from well-known brands, such as BatteryMINDer, NOCO, and Battery Tender. Every charger is backed with a manufacturer warranty.
If you have any questions about charging 12 volt batteries, please contact us by email or give us a call at 1-800-405-2121. Our team of battery experts are here to make sure you find the right charger for your needs. Find your ideal 12v battery charger for sale below.
Frequently Asked Questions about Battery Chargers
How can I tell if my battery is charged or not?
The simplest method is to test your battery with a voltmeter to measure the voltage between the positive and negative terminals or posts. While the battery is not being charged and not powering anything, you can use your voltmeter and get a reading. For a 12-volt lead-acid battery, the voltage should be between 11 and 13 volts. The closer it is to 13 volts, the closer it is to being fully charged. If it's closer to 11 volts, the battery needs recharged. The exact voltage will differ depending on the battery voltage, style, and age.
How long will it take to charge my battery?
There's no definitive answer to this question, but you can make a pretty good guess with some simple math.
Our ETX-30L Big Crank battery has a capacity of 26 Ah. You plan on charging this with a 2 amp charger. Using the above equation, you would have [26 Ah / 2 Amp = 13 Hours]. This is a rough estimate and usually tells us how long it will take to recharge the battery to about 80% of its capacity.
To complete the recharge all the way to 100%, it will probably take an equal amount of time to recharge the last 20% of capacity. Some chargers may get it there a little faster, but there's no absolute guarantee.
