1. What is a Battery Health Calculator?

Definition: This calculator estimates the remaining health percentage of a battery by comparing its current capacity to its original capacity.

Purpose: It helps users determine how much their battery has degraded over time and when it might need replacement.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( Health \) — Battery health percentage
• \( Current\ Capacity \) — Current battery capacity in mAh
• \( Original\ Capacity \) — Original battery capacity when new in mAh

Explanation: The ratio of current to original capacity shows what percentage of the original capacity remains.

3. Importance of Battery Health Calculation

Details: Monitoring battery health helps predict battery life, plan replacements, and maintain optimal device performance.

4. Using the Calculator

Tips: Enter both current and original capacities in mAh (milliampere-hours). Current capacity should be ≤ original capacity.

5. Frequently Asked Questions (FAQ)

Q1: What's considered good battery health?
A: Typically 80% or above is good, below 80% may indicate significant degradation.

Q2: Where can I find my battery's original capacity?
A: Check device specifications, manufacturer website, or battery label.

Q3: How do I measure current capacity?
A: Use battery diagnostic tools or apps that report battery health.

Q4: Why does my battery health decrease?
A: Normal wear from charge cycles, heat exposure, and aging reduces capacity over time.

Q5: When should I replace my battery?
A: Consider replacement when health drops below 80% or you notice significantly reduced runtime.