![]() ![]() Trickle charge, continuous charging method This is still great to put up with considering that the 9 volts non rechargeable batteries cost arm and leg, but they don’t have to. Usually between 30 mA to 100 mA depending on the 9V battery capacity in mAh. Time control for charging of common 9V rechargeable batteries ( NiCd and NiMH 9 V batteries.) The timer takes longer because these can only be charged at much lower current rate of 0.1C or 1/10C ( mAhr/10 = charging time in hours ) of their mAh capacity value. Re-charging 9 volt rechargeable batteries ![]() You can select and use a specific / special battery sizes at the bottom of the field and then set a different current output from a battery charger, if needed, by choosing the 1mA current and multiplying the outcome backwards – dividing in fact by the existing current value at which your charging equipment operates. Without changing outcome as per hours/mA a 1-4 batteries can be charged. Type in a capacity number of one battery only. 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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February 2023
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