![]() Find Out Your Battery’s Amount Of Amp Hours Via Its Reserve Capacity Safety goggles, protective sleeves, and latex gloves are a must to protect your eyes and skin from accidental electrocution and corrosive materials that may leak from the battery. However, this is important: you should always wear protective gear when charging or handling batteries. Now, if you are curious about the 2 amp or 10 amp preferences to determine which one is faster, or which one is just more efficient in general, an understanding of charge time is useful knowledge.Ĭalculating the charge time is easy, and the only special equipment you will need is a voltmeter. ![]() Regardless of whether you will use a 2 amp or 10 amp chargers for your car battery, there are standard steps on how to determine the charge time. It actually depends on the battery material, the reliability of the charger, and the current charge rate on the battery. However, calculating actual charge times is much more complicated than crunching simple numbers. Also, these charging rates are just the ideal conditions, circumstances when all goes perfect. There are some that prefer a slow charge because fast charging can lead to overcharging and buckling of the battery plates. A 10 amp charger, in comparison will take a little under five hours to fully charge the 48 amp battery. So a 2 amp charger will deliver 2 amp per hour to this “flat” battery, and if it requires 48 amps that in means it needs 24 hours to fully charge. This means that it can deliver 1 amp per 48 hours, or 2 amps in 24 hours, 8 amps in 6 hours, and so on. Automobile batteries commonly have a capacity of 48 amp hours. The question of what charger to use is anchored on the amp hour- a measurement of energy output used in batteries. But to really dig into the reasons why that is so, we need to learn about how charge times are determined on different kinds of batteries. The short answer: 10 amp chargers are generally preferable than 2 amp chargers. This is because repeatedly fast-charging a car battery may lead to overcharging and will severely reduce its performance. Slow charging using 10 amp chargers or less is generally accepted to be better. The battery capacity and its type also plays a big role in calculating charge time.Īs for car batteries, it is a rule of thumb not to fast charge them using anything that exceeds 20 amps. (Learn how to use a car battery charger).ĭetermining whether to use a 2 amp or 10 amp charger will help you accurately predict the charge times of a battery, but it is not the only factor. This is mostly a question that focuses on charge time, because determining how long to charge a battery is important so that you can schedule tasks in line with when the task finishes.Īnother reason why you should know what charger to use is so that you can accurately measure how long you have to charge your battery without it overcharging, or worse, overheating. Yet one of the most common questions is that, what charger should one use when charging a car battery, 2 amp or 10 amp? There are many ways of charging a battery, plus a myriad of chargers to choose from.
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