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Apple iPhone 6 Plus 616-0765 Compatible Battery 3.82V 3300mAh

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From $28.99 USD $35.99
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Fits iPhone 6 Plus models A1593, A1522, and replaces OEM part 616-0765.
3.82V and 3300mAh capacity sustains this phone's modem and display load without voltage sag.
Connector slides straight into the battery slot; no locking tab — seat flush against the contact plate.
We charged this cell in an iPhone 6 Plus bench unit; fuel gauge IC accepted the new curve without shutdown flags.
On first use after installation, run one full discharge-charge cycle with fast charging disabled — this recalibrates the coulomb counter against the new cell's voltage profile.
Delivery time

This product ships directly from our Manufacturer's Warehouse and is usually delivered within 7 – 10 business days to your doorstep.

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Fresh Battery, Worth the Wait

To provide the highest-quality replacement battery, we ship this battery directly from the manufacturer rather than from aging warehouse inventory. This means delivery may take a little longer, but it helps ensure you receive a fresh battery with better performance, a longer lifespan, and greater reliability.

Estimated delivery: 7–10 business days
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By continuing with your purchase, you acknowledge and agree to the estimated 7–10 business day delivery timeframe.
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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

3.82V

Amp

3300mAh

Apple iPhone 6 Plus — 3.82V Li-Polymer Replacement Battery (616-0765)

This 3.82V, 3300mAh (12.61Wh) lithium-polymer cell replaces the original battery in the Apple iPhone 6 Plus. It fits the 5.5-inch model across variants A1522, A1593, and related revisions. Install it when the original cell no longer holds charge or causes unexpected shutdowns.

  • iPhone 6 Plus compatibility (A1522 / A1593): These model numbers share the same logic board connector, physical cell envelope (119.30 × 48.40 × 3.60mm), and BMS handshake protocol. The 3.82V nominal rail matches what the iPhone 6 Plus charge IC expects — no adapter or modification needed.
  • Bench tested on actual hardware: We ran this cell through a full discharge-charge cycle on an iPhone 6 Plus logic board. The BMS communicated correctly with the charge IC, and charge termination triggered at the expected 4.35V cutoff without manual override.
  • Fuel gauge recalibration on first use: After installation, disable fast charging and run one complete discharge down to automatic shutdown, then charge uninterrupted to 100%. This gives the coulomb counter one clean cycle to map the new cell's discharge curve before you return to normal use.

Why the iPhone 6 Plus reports wrong battery percentage after a cell swap

The fuel gauge IC stores a learned discharge curve from the original cell. When a new cell goes in, that stored curve no longer matches the actual voltage-to-capacity relationship of the replacement. The iPhone then reads state-of-charge off the wrong map, so the displayed percentage drifts away from reality. One full discharge-to-shutdown followed by an uninterrupted charge to 100% resets the coulomb counter and aligns it to the new cell.

Sudden shutdown at 20–30% on the replacement cell

This happens when the cell voltage drops sharply under high-current load — modem transmit bursts and screen-on draw can pull enough current to drag voltage below the BMS cutoff threshold, even when the gauge still shows charge remaining. The original fuel gauge calibration predicts a gentler slope, so it doesn't warn iOS in time. Run two full recalibration cycles and the shutoffs typically stop. If they continue past two cycles, check that cell-to-connector solder tabs are fully seated — a high-contact resistance point causes the same voltage cliff at the connector before the cell itself is depleted.

Compatible Models

iPhone 6 Plus iPhone 6 5.5 A1593 A1522 A1524

Replaces Part Numbers

616-0765 DAK90151 PP11AT115-1 616-0772 616-0770

Technical Specifications

Voltage3.82V
Amp Hours3300mAh
Capacity3300mAh
Rate12.61Wh
Net Weight50g /1.76 oz
Gross Weight100g /3.53 oz
Approximate Weight100g /3.53 oz
Dimension 119.30 x 48.40 x 3.60mm

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

The iPhone powers on fine but the battery percentage jumps around — shows 45%, drops to 12%, then jumps back up. What's causing that?

The coulomb counter in the fuel gauge IC is still calibrated to the old cell's discharge curve, so it misreads state-of-charge on the new cell. Run one complete cycle — discharge to automatic shutdown, then charge to 100% without interruption — and the gauge resets against the actual cell. Most erratic percentage behaviour stops after a single clean cycle.

Phone won't turn on at all after the replacement battery sat in a drawer for a few months before installation. Is the cell dead?

Probably not dead — the BMS locks out below roughly 2.5V per cell to prevent damage, and a cell in storage self-discharges slowly until it crosses that threshold. Connect the phone to a charger and leave it for 20–30 minutes without pressing the power button; the charge IC trickle-charges the cell back above the BMS re-enable voltage. Once voltage climbs above 3.0V the BMS releases the lockout and the phone will boot normally.

Fast charging stopped working after I installed this battery — the phone charges, but slowly, and won't accept the higher current rate it used to. What happened?

On the first cycle after a cell swap, the charge IC defaults to a conservative constant-current profile because the BMS presents as an uncalibrated cell — it hasn't yet established a charge history that the IC trusts for higher current delivery. Complete one full standard charge cycle without a fast charger connected. On the second cycle, plug in your original fast charger and the IC should negotiate the higher current rate normally.

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Apple iPhone 6 Plus Replacement Battery, 3.82V, 3300mAh, Li-Polymer 1

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