To fully understand the concept of power a charger uses, learning about the various types of battery chargers there are, is equally important. This way, either of the parameters can be calculated in simple mathematical steps. The formula power ( watt) = V*I sums up the entire relationship between power, voltage, and current or charge. Stepping up to a charger with a much higher power rating and consequently a higher charge output could lead to the battery plates getting damaged at some point. Except for good reasons, it is best to stick with the power rating of your previous charger. The charger’s power rating tells exactly how many amps of charge it puts out.
#12 VOLT CAR CHARGER HOW TO#
Knowing how to determine how many watts a battery uses is important in the decision-making when you plan to get yourself a new battery charger. How to determine how many watts a car battery charger use? With this in mind, it is understandable why a 10 amp 12-volt charger uses 120 watts of power based on the formula of power stated above. Therefore, to determine how many watts a car battery charger uses, these two variables, that is, current and voltage must be known.
Power is given as the product of voltage(volts) and current (amp), that is, V X I = power (watt). So, how many watts does a car battery charger use? some flashback at elementary physics is required to answer this question correctly.ĭo you remember the relationship between power, voltage, and amperage? Well, I do. Hence, before replacing the battery charger, its watts must be seriously put under consideration. Learn Moreįor the sake of persons like myself who probably did not pay much attention to their physics class, a watt is the unit of power and determines how many amps the car battery charger puts out. Disclosure: This page contains affiliate links, As an Amazon Associate, I earn from qualifying purchases (at no extra cost to you).
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