Battery / Accumulator Backup Time Calculator
Calculate backup time from battery capacity and load.
Ah
V
%
%
W
Result
4,32 saat
Backup time: 4,32 hours
Result in all units
Step-by-step solution
time = (Ah×V×DoD×efficiency) / load
What Is Battery Backup Time?
Battery backup time indicates how long a battery can supply a given load. It is used in uninterruptible power and solar systems.
How is it calculated?
How Is It Calculated?
Time = (battery energy Wh × efficiency) ÷ load (W)
Battery energy = voltage × capacity (Ah).
- Enter the battery voltage, capacity and load.
Frequently Asked Questions
Can I fully discharge the battery?
Generally no; to preserve its lifespan it is recommended not to go below a certain discharge limit depending on the battery type.