How to calculate battery capacity for home. First off battery capacity can be measured in terms of ampere hours or ampere per hour like a label of 20ah. Battery capacity power requirement in watts back up hours in hrs battery voltage in volts battery capacity 535 3 12 133 ah value of battery voltage is taken 12v. Step aside folks genius calculation formula coming throughjust kidding.
This simply means how many amperes a battery can deliver in an hour. Cr i er. Battery capacity in mah milli ampere hours battery life in hours load current consumption of device in amperes 07 battery cycle life considerations run time.
V is the voltage of the battery. Livguards online inverter backup calculator lets you pick and choose from a list of common household electronics and figure out the exact inverter and battery size for your home. Q is the battery capacity measured in amp hours.
Hence the final version of the battery capacity formula looks like this. Equation to get the time of charge or charge or discharge t according to current and rated capacity is. Er rated energy stored in ah rated capacity of the battery given by the manufacturer i current of charge or discharge in amperes a cr c rate of the battery.
An inverter batterys capacity is calculated in ah which means ampere hour. So if you want to run 3 fans 3 tube lights 1 cfl and 1 tv for 3 hours during power failure. Hopefully you remember that amp hours are a measure of electric charge q the battery capacity.
Our easy to use inverter battery backup calculator will help you to know the exact total load requirements for your home. T er i. Dont worry lets first break down what each of these terms mean.
Multiply this number by two to find your batterys true ah rating. You might be thinking what the heck does that even mean. Second conversion is needed for this to be in watt hours through multiplication of the ah figure with the battery voltage as a label of 12v.
E v q.