1. What Is This Calculation?

This calculator determines the amp-hour (Ah) capacity of a battery when you know its voltage and that it has 160 watt-hours (Wh) of energy capacity.

2. How Does The Calculator Work?

The calculator uses the formula:

Where:

• 160 Wh — Fixed energy capacity per battery
• Battery Voltage — The nominal voltage of your battery (e.g., 12V, 24V, 48V)

Explanation: This converts watt-hours (energy) to amp-hours (charge capacity) by dividing by the battery's voltage.

3. Importance Of Amp-Hour Calculation

Details: Knowing the amp-hour capacity helps in battery system design, determining runtime, and matching batteries to loads and charging systems.

4. Using The Calculator

Tips: Enter the battery's nominal voltage in volts. The voltage must be greater than 0 for the calculation to work.

5. Frequently Asked Questions (FAQ)

Q1: Why 160 watt-hours specifically?
A: Many standard batteries (like some lithium-ion packs) are rated at 160Wh, which is a common energy capacity for certain applications.

Q2: Can I use this for different watt-hour ratings?
A: No, this calculator is specifically for 160Wh batteries. For other ratings, you'd need to change the numerator in the formula.

Q3: What's the difference between Wh and Ah?
A: Watt-hours measure energy capacity, while amp-hours measure charge capacity. They're related through voltage (Wh = Ah × V).

Q4: Does this work for all battery types?
A: Yes, the calculation works for any battery chemistry (Li-ion, lead-acid, etc.) as long as you know its nominal voltage.

Q5: Should I use nominal or actual voltage?
A: Use the battery's nominal voltage (e.g., 12V for a lead-acid battery) rather than its actual charge-dependent voltage.