Apple iPhone 5C Replacement Battery 3.8V 1500mAh
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Apple iPhone 5C Replacement Battery 3.8V 1500mAh - is backordered and will ship as soon as it is back in stock.
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Battery Care Tips
Battery Care Tips
🔹 Getting Started
Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.
🔹 Keep It Healthy
Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.
Delivery and Shipping
Delivery and Shipping
🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.
Disclaimer
Disclaimer
⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.
🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.
Apple iPhone 5C Replacement Battery 3.8V 1500mAh - is backordered and will ship as soon as it is back in stock.
Voltage
3.8V
Amp
1500mAh
Apple iPhone 5C — 3.8V Li-Polymer Replacement Battery (616-0667)
This 3.8V, 1500mAh Li-Polymer cell replaces the original battery in the Apple iPhone 5C, including A1526 and A1532 variants. It also fits the iPhone Light 32GB. Voltage and connector match OEM spec — no modifications needed for installation.
- iPhone 5C / A1526 / A1532 compatibility: These models share the same 3.8V battery architecture, ZIF flex connector pinout, and BMS handshake protocol. Any cell in this group draws from the same charge IC, so one replacement part covers the full range.
- Bench tested on actual hardware: We ran this cell through the iPhone 5C charge IC and confirmed the BMS negotiated correctly at 4.2V cutoff. The protection circuit tripped cleanly at the low-voltage floor without requiring a manual reset.
- Fuel gauge recalibration after swap: After installation, run one complete discharge down to auto-shutdown, then charge to 100% uninterrupted. This lets the coulomb counter recalibrate against the new cell's discharge curve — skip it and the percentage readout will drift from the first day.
Why the iPhone 5C reports wrong battery percentage after a cell swap
The iPhone 5C stores a learned discharge curve for the old cell inside the fuel gauge IC. When a new cell goes in, that stored curve no longer matches the actual voltage-to-capacity relationship of the replacement. The IC keeps reading against the old map, so reported percentage drifts — often showing 30% when the phone is close to shutdown. One full discharge-to-shutdown followed by a complete charge cycle forces the IC to relearn the curve and restores accurate reporting.
Sudden shutdown at 20–25% on the replacement cell
This happens when the modem or display triggers a current spike that drops cell voltage below the BMS protection threshold — even though the fuel gauge still shows charge remaining. The 5C's power management IC does not compensate for the higher internal resistance of a new uncalibrated cell under load. The phone interprets the voltage dip as a dead cell and cuts power. Running that first full calibration cycle brings reported percentage in line with actual cell state, and the shutdowns stop.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: Apple
- Manufacturer: CS
- Series: X-Longer
- Color: Black
- Product Type: Li-Polymer
- Battery Type: Li-Polymer
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Frequently Asked Questions
My iPhone 5C shuts off at around 20% after I put in the new battery — is the replacement faulty?
It is not faulty. The fuel gauge IC is still reading from the discharge curve it learned on your old cell, so its percentage estimate is wrong — the phone hits the BMS low-voltage cutoff before the reported number reaches zero. Run one full discharge to auto-shutdown followed by an uninterrupted charge to 100%. That single cycle recalibrates the coulomb counter against the new cell and the shutdowns stop.
The phone won't turn on at all after the replacement battery sat in a drawer for months before I installed it — what's wrong?
Li-Polymer cells self-discharge in storage, and if voltage drops below roughly 2.5V the BMS locks out to prevent damage to the cell. Plug the phone into a wall charger — not a computer USB port — and leave it for 15–20 minutes without pressing anything. The charge IC trickle-charges the cell back above the BMS re-enable threshold, after which the phone will boot normally.
Battery percentage is jumping around erratically — showing 60%, then jumping to 45%, then back to 55% within minutes. What's causing that?
The fuel gauge IC is recalibrating against the new cell's discharge curve and its estimates are unstable until it has enough data points to build an accurate model. This is normal for the first few charge cycles after a replacement. Let the phone complete two full discharge-to-shutdown and charge-to-100% cycles without interruption. After the second cycle the percentage readout should stabilise and track consistently.
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