1. What is the 100 Wh Lithium Battery Calculation?

This calculation determines the amp-hour (Ah) capacity of a lithium battery that provides 100 watt-hours (Wh) of energy at a specified voltage. It's essential for understanding battery capacity and comparing different battery types.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• 100 Wh — Standard energy capacity
• Battery Voltage — Nominal voltage of lithium battery (typically 3.2V-3.7V per cell)

Explanation: The formula converts watt-hours to amp-hours by accounting for the battery's operating voltage.

3. Importance of Battery Capacity Calculation

Details: Understanding the relationship between watt-hours and amp-hours is crucial for battery selection, system design, and comparing energy storage solutions.

4. Using the Calculator

Tips: Enter the nominal voltage of your lithium battery in volts. Typical lithium-ion cells are 3.6V or 3.7V nominal.

5. Frequently Asked Questions (FAQ)

Q1: Why use 100 Wh as the standard?
A: 100 Wh is a common benchmark for portable batteries and is the maximum capacity allowed in carry-on luggage by many airlines.

Q2: How does this apply to battery packs?
A: For multi-cell packs, use the total pack voltage (cell voltage × number of cells in series).

Q3: What's typical for a 100 Wh lithium battery?
A: A 3.7V lithium battery would be about 27Ah (100 ÷ 3.7 ≈ 27).

Q4: Does this work for other battery chemistries?
A: The formula works for any battery type, but voltage values differ (e.g., lead-acid is typically 12V).

Q5: How does this relate to real-world capacity?
A: Actual usable capacity may be less due to discharge limits, temperature effects, and battery age.