1. What is mAh?

mAh (milliamp-hours) is a unit of electric charge commonly used to measure battery capacity. It represents how much current a battery can supply over time.

2. How Does the Calculator Work?

The calculator uses the simple conversion formula:

Where:

• \( mAh \) — Milliamp-hours (battery capacity)
• \( Ah \) — Amp-hours (input value)
• \( 1000 \) — Conversion factor (milliamps per amp)

Explanation: Since 1 amp equals 1000 milliamps, multiplying amp-hours by 1000 converts to milliamp-hours.

3. Importance of mAh Calculation

Details: Knowing a battery's mAh rating helps determine how long it will last powering a device and allows comparison between different batteries.

4. Using the Calculator

Tips: Enter the battery's amp-hour (Ah) rating. The value must be greater than 0. The calculator will instantly show the equivalent in milliamp-hours (mAh).

5. Frequently Asked Questions (FAQ)

Q1: Why convert Ah to mAh?
A: Many small electronic devices and batteries use mAh ratings, while larger systems often use Ah. Conversion allows easy comparison.

Q2: What's a typical mAh range for batteries?
A: Smartphone batteries: 2,000-5,000 mAh; AA batteries: 1,800-3,000 mAh; car batteries: 50,000+ mAh.

Q3: Does higher mAh mean longer battery life?
A: Generally yes, but actual runtime depends on the device's power consumption (measured in mA).

Q4: Can I convert mAh back to Ah?
A: Yes, simply divide mAh by 1000 to get Ah.

Q5: Is mAh the same as energy capacity?
A: No, mAh measures charge capacity. For energy (watt-hours), multiply mAh by voltage (V).