Enter both values to calculate watt hours
Amp Hours (Ah)
Volts (V)
Common:
Watt Hours (Wh)
Result will appear here
Understanding Battery Capacity
The relationship between amp hours and watt hours follows the Energy Formula:
- Energy (Wh) = Capacity (Ah) × Voltage (V)
- Capacity (Ah) = Energy (Wh) ÷ Voltage (V)
For Solar Battery Systems
Understanding these relationships helps you:
- Compare batteries - Wh lets you compare batteries of different voltages
- Size your system - Calculate how long your loads can run
- Plan upgrades - Understand capacity when changing voltage
- Match components - Ensure charge controller and inverter compatibility
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