Battery Health on Refurbished Phones: What to Look For
What Is Battery Health and Why Does It Matter?
Battery health measures the capacity of a phone's battery relative to when it was brand new. Over time, lithium-ion batteries degrade due to charge cycles, age, and usage patterns. As a result, the battery life on refurbished phones may not be as long-lasting as on new ones.
A poor battery can lead to:
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Shorter usage time
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Sudden shutdowns
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Slow charging
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Throttled performance (especially on iPhones)
How to Check Battery Health on Refurbished Phones
1. iPhone Battery Health
Apple makes it easy to check iPhone battery health:
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Go to Settings > Battery > Battery Health & Charging
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Look for Maximum Capacity — anything above 85% is considered good for refurbished phones
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Check if Peak Performance Capability is enabled
2. Android Battery Health
Checking battery health on refurbished Android phones isn’t always straightforward. Some methods include:
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Using codes like
*#*#4636#*#*(works on some models) -
Downloading third-party apps like AccuBattery or GSam Battery Monitor
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Checking the battery info through developer options or OEM diagnostics tools
What Battery Percentage Is Acceptable in a Refurbished Phone?
Generally, a battery health of 85% or higher is acceptable for refurbished phones. Reputable sellers often replace the battery if it's below a certain threshold.
✅ Ideal: 90–100% (Like new)
👍 Acceptable: 85–89% (Good performance)
⚠️ Caution: Below 85% (May need replacement soon)
Should You Buy a Refurbished Phone with a New Battery?
Absolutely. Some of the best refurbished phone sellers offer new or certified replacement batteries as part of their quality assurance process. This ensures:
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Better battery life
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Improved performance
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Longer phone lifespan
Before buying, check if the refurbisher includes a battery replacement or offers a warranty on battery performance.
Questions to Ask When Buying a Refurbished Phone
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What is the current battery health percentage?
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Has the battery been replaced? If so, is it OEM or third-party?
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Is there a warranty covering battery issues?
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Can the battery be replaced later if needed?
Tips for Extending Battery Life on Refurbished Phones
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Avoid extreme heat and cold
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Don’t overcharge overnight regularly
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Use original or certified chargers
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Turn on battery saver mode when needed
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Keep your phone’s software up to date
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