How Long Do Calculator Batteries Last. It very much depends on the calculator. Some calculators have a small solar panel which can usually generate enough electricity to power it - the battery is only there as a backup and so it can last for many more years without the battery going flat.
You just need to replace 24v in place of 12v to the above calculation. Most calculators are designed for very low power consumption. Calculate the estimated run time or battery backup time of specific Battery Backup Power Inc.
How to Calculate How Long a Battery Will Last on an Inverter.
UPS uninterruptible power supply models using the load in watts and the modelconfiguration drop down. As a simple rule to calculate how long a 12v deep-cycle battery will last with an inverter multiply battery amp-hours Ah by 12 to find watt-hours and divide by the load watts to find run time hours. For a given capacity C and a discharge current I the time will be However battery capacity decreases as the rate of discharge increases. A 10 Ampere Hour battery will last 5 hours if it takes 2 Amperes of cuurrent.
