How Long Will A 4500 Mah Battery Last. Im using a Swallow charger 15amp How long do these batteries last. The formula is mAh Amps1000 hours.
By stalemate1 in forum BlackBerry Z10 Replies. The mAH specification shows how long a battery will be able to last in a circuit given the circuits power requirements how much current the circuit demands. If the load is 1 milli-amp the battery would last for 4400 hours.
You can calculate the battery life by dividing the capacity of the battery by the current required by the object.
You can calculate the battery life by dividing the capacity of the battery by the current required by the object. If you draw 2 mA for 5 hours you have used 2 mA 5 h 10 mAh. You can calculate the battery life by dividing the capacity of the battery by the current required by the object. 4500 Milliamps is the same as 45 Amps.
