![]() ![]() ![]() Then select the battery type/size in the left column ( NiMH – NiCd – AAA – AA – C – D – 9V ( 9 volt )) and in the right side select a current output ( electric power output ) of your charger in mA ( milli-amperes ). Type into the calculator your rechargeable battery’s capacity number, normally can be red on the battery body e.g. (Need more information? The charge formula is explained in details with examples further below.) Charging rechargeable batteries. “ hours” equal “ battery size in milliampere-hour” divided by “ charger output power in milliamperes” How long time does it take to recharge a rechargeable battery?įormula for calculating batteries charging time : ![]() mA output for trickle charging methodĪdvertisements Battery size, charging time length, charger current output type. Step 3: Select battery charger mA current output rate for time length specific size NiCd rechargeable batteries.specific size NiMH rechargeable batteries.NiCd size 9 Volt battery (30-100mA charge).NiMH size 9 Volt battery (30-100mA charge).Step 2: Select a rechargeable battery size/type to calculate from * Precision in results is how many numbers after decimal point (0 – 9)Įnter a mAh number of your battery : (ei: 2400) mAh – * Enter a mAhr capacity value as shown on one battery only (to charge 1 to 4 batteries at once.) Step 1: Enter a mAh capacity of your Rechargeable Battery ![]()
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