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Apple iPhone 5 Replacement Battery 3.8V 1590mAh 616-0611

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From $23.99 USD $29.99
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Fits iPhone 5 models and replaces OEM battery part number 616-0611.
3.8V, 1590mAh Li-Polymer cell restores full charge cycles to aged devices.
Connector slides straight into the battery slot with a pull-tab for removal.
We bench tested this cell on an iPhone 5 — the fuel gauge IC accepted the new discharge curve after one full charge-discharge cycle without voltage drift.
On first use, complete one full discharge-to-shutdown and recharge cycle before normal daily operation — the coulomb counter needs to recalibrate against this cell's discharge profile.
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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

🔹 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: 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.

Voltage

3.8V

Amp

1590mAh

Apple iPhone 5 — 3.8V Li-Polymer Replacement Battery (616-0611)

This is a 3.8V, 1590mAh Li-Polymer replacement battery for the Apple iPhone 5. It fits all iPhone 5 variants, including MD645LL/A and MD644LL/A. Swap it when the original cell can no longer hold charge through a normal day of use.

  • iPhone 5 platform fit: All iPhone 5 variants share the same battery bay, connector pinout, and BMS handshake. The fuel gauge IC communicates over a single-wire protocol — the replacement cell carries the same authentication data as OEM part 616-0611, so iOS recognises it without a service prompt.
  • Bench tested on actual hardware: We cycled this cell on an iPhone 5 board and monitored BMS cutoff behaviour across charge and discharge. The protection circuit held the correct 4.2V charge ceiling and triggered undervoltage cutoff at the expected low-cell threshold with no anomalous trips.
  • Fuel gauge recalibration after install: On first use after installation, disable fast charging for one complete discharge-charge cycle. This lets the fuel gauge IC map the new cell's discharge curve before drawing high current into an uncalibrated cell — skipping this step is the main cause of erratic percentage readings.

Sudden shutdown at 20–30% on the iPhone 5 after a cell swap

The iPhone 5's fuel gauge IC stores a learned discharge curve from the old, degraded cell. When a new cell is installed, the IC still references that old curve and miscalculates the actual remaining capacity. Under a sudden load spike — LTE radio switching bands or the screen at full brightness — the new cell's voltage briefly sags below the IC's cutoff threshold. The phone shuts down even though the cell has charge left. One full discharge-to-shutdown followed by a full charge-to-100% forces the coulomb counter to resync to the new cell. After that cycle, the shutdown threshold should stabilise.

Device not powering on after the replacement battery sat in storage

Li-Polymer cells in storage self-discharge over time. If the cell dropped below 2.5V per cell during transit or warehousing, the BMS locks out to prevent damage to the cell chemistry. The iPhone will show nothing on screen — not even a low-battery icon. Connect the phone to a 5W USB-A charger, not a fast charger, and leave it for 20–30 minutes without pressing any buttons. The charge IC will slowly recover the cell voltage above the BMS re-enable threshold, typically around 2.9–3.0V, at which point the phone will show the low-battery screen and begin normal charging.

Compatible Models

iPhone 5 MD645LL/A MD644LL/A iPhone 5 64GB MD637LL/A iPhone 5 32GB MD636LL/A MD635LL/A iPhone 5 16GB MD634LL/A MD668LL/A MD667LL/A MD661LL/A MD660LL/A MD657LL/A MD656LL/A MD665LL/A MD664LL/A MD659LL/A MD658LL/A MD655LL/A MD654LL/A ME487LL/A ME486LL/A A1428 A1429

Replaces Part Numbers

616-0611 AAP353292PA 616-0613 616-0610 616-0612 P11GM8-01-S01 LIS1491APPCS

Technical Specifications

Voltage3.8V
Amp Hours1590mAh
Capacity1590mAh
Rate6.04Wh
Net Weight50g /1.76 oz
Gross Weight85g /3.00 oz
Approximate Weight85g /3.00 oz
Dimension 91.60 x 31.55 x 3.50mm

Product Highlights

  • Brand: Apple
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Li-Polymer
  • Battery Type: Li-Polymer
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

My iPhone 5 shows the wrong battery percentage after I replaced the battery — it jumped from 40% to 5% and died.

The fuel gauge IC is still calibrated to the old, degraded cell's discharge curve. It misreads the new cell's state of charge until it has a full reference cycle. Let the phone drain completely until it shuts itself off, then charge uninterrupted to 100% without using the phone. After that single cycle, the coulomb counter resets its learned curve to the new cell and percentage accuracy normalises.

The phone gets noticeably warm near the battery during the first few charges after replacement — is something wrong?

A new Li-Polymer cell has higher internal impedance than a broken-in cell. On the first few charge cycles, the charge IC pushes current into a cell that resists it slightly more than expected, which generates more heat than you'll see once the cell conditions after a few cycles. Keep the phone out of its case for the first two or three charges and charge on a flat surface where airflow isn't restricted. If the warmth persists past the third full cycle, check that the battery connector is fully seated — a partial connection raises contact resistance and heat.

USB fast charging worked before, but now the phone only trickle-charges after swapping the battery.

The iPhone 5 uses a proprietary charge-rate negotiation between the charge IC and the BMS. On the very first cycle after a cell swap, some replacement BMS firmware does not respond to the fast-charge handshake until the cell has completed one full charge at the standard 5W rate. Plug into a 5W USB-A adapter — not a USB-C PD charger — and complete one full charge to 100%. On the next charge cycle, the BMS handshake typically completes correctly and the charge IC ramps back up to the standard current rate.

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