Welcome to our store. Your trusted source for batteries and power solutions. Learn more

For support or quotes: sales@batteryweb.com
WELCOME5
BatteryWeb

Apple iPhone 7 Plus Replacement Battery 616-00249 3.82V 2900mAh

Up to 21% off
New arrival
From $26.99 USD $33.99
Shipping calculated at checkout.
Fits iPhone 7 Plus models A1661, A1784, A1785 — replaces OEM part 616-00249 and 616-00252.
3.82V and 2900mAh capacity delivers the same charge cycles as the original internal cell.
Flex connector solders directly to the logic board — no mechanical contacts or locking tabs involved.
We ran full charge cycles on a test unit; the BMS accepted 5V/2A input and held voltage under modem load.
On first use after installation, disable fast charging for one complete discharge-charge cycle — this lets the fuel gauge IC recalibrate against the new cell's discharge curve before high-current charging resumes.
Delivery time

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

Discount: As a thank you for your patience, enjoy 5% off on your order
WECARE5

Please Confirm Delivery Timeline

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
4.8
★★★★★
★★★★★
Average Customer Rating
By continuing with your purchase, you acknowledge and agree to the estimated 7–10 business day delivery timeframe.
Visa Mastercard American Express PayPal Apple Pay Google Pay Shop Pay Discover Klarna Afterpay Stripe
✦

Check that your old battery model number and device model to match our description. This makes sure they work together.

✦

We ship your order same day if you buy it before 4 PM EST.

Warranty

Let customers speak for us

from 11 reviews

Product is exactly as described and arrived quickly

Robert Jones
Rocket ES4-12 Compatible Replacement Battery

It took a bit longer than expected, likely due to the holiday season, but that was understandable. So far, the battery seems to be working well!

Linda M.
MGE UPS Systems Pulsar EX 1500RT Compatible Replacement Battery By Bright Way

Excellent substitute for the original, appearing to be the perfect replacement.

Alberto J.
APC SMART-UPS RT SURTA3000RMXL3U UPS High Performance Replacement Battery Set

It was what i was looking for. Support is fast

Jaswal
WAHEGURUG - RADHASWAMI

Fast service

Mark Casias
BatteryWeb

Perfect fit

Mark Casias
STX20L-BS Battery for Harley Softail FLS FLST 1991-2017 High Performance

Works Perfectly!!

Ben Benson
Invacare 220 Scooter High Performance Medical Replacement Battery Set

Send Your Battery Photo

Expert Technician Help

Snap a photo or video of your battery and send it to us. We'll identify the exact replacement—fast and hassle-free. Our team has helped thousands of customers find the right battery quickly and easily.

POST YOUR BATTERY IMAGE
Product & Solutions Expert

Product & Solutions Expert

✉ sales@batteryweb.com

🔹 10+ Years Battery Experience 🔹 Fast & Accurate Identification

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

2900mAh

Apple iPhone 7 Plus — 3.82V Li-Polymer Replacement Battery (616-00249)

This 3.82V, 2900mAh Li-Polymer cell replaces the internal battery in the iPhone 7 Plus. It fits models A1661, A1784, and A1785 — the full 2016 7 Plus lineup. Capacity matches the original Apple specification at 11.08Wh.

  • A1661, A1784, A1785 fit: All three 7 Plus variants share the same battery bay dimensions, connector pinout, and BMS handshake protocol. The same cell covers every regional variant without modification.
  • Bench tested on actual hardware: We cycled this cell through charge and discharge on a 7 Plus board. The BMS negotiated correctly, charge termination triggered at full voltage, and the fuel gauge IC tracked the new cell's discharge curve without fault codes.
  • Fuel gauge recalibration after swap: On first use after installation, disable fast charging and run one complete discharge-to-charge cycle at standard current. This lets the fuel gauge IC map its coulomb counter against the new cell's actual discharge curve before high-current charging begins.

Sudden shutdown at 20–30% after a cell swap

This happens because the fuel gauge IC is still calibrated to the old cell's voltage curve. The new cell hits a voltage cliff under modem or screen load that the gauge didn't predict. The phone reads 25% but the cell voltage has already dropped below the safe cutoff threshold. One full discharge-charge cycle without fast charging resets the coulomb counter and resolves this.

Phone warm near the battery during the first few charges

A fresh Li-Polymer cell has higher internal impedance than a broken-in cell. The charge IC pushes current into that resistance, generating heat at the battery. This is normal for the first two to three cycles and diminishes as the cell's impedance drops. If warmth persists past three full cycles, check that the connector is fully seated and the charge IC hasn't flagged a fault in the battery health menu under Settings → Battery.

Compatible Models

iPhone 7 Plus A1661 A1784 A1785 A1786

Replaces Part Numbers

616-00249 616-00252

Technical Specifications

Voltage3.82V
Amp Hours2900mAh
Capacity2900mAh
Rate11.08Wh
Net Weight44g /1.55 oz
Gross Weight94g /3.32 oz
Approximate Weight94g /3.32 oz
Dimension 110.24 x 48.72 x 3.45mm

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 7 Plus shut off at 28% right after I put in the new battery — what's wrong?

The fuel gauge IC is still mapped to your old cell's discharge curve, not the new one. The new cell hits a voltage drop under load — modem traffic, GPS, or screen brightness — that the gauge didn't anticipate, so the phone cuts out even though the reported percentage looked fine. Run one full discharge down to automatic shutdown, then charge to 100% at standard speed with fast charge disabled. After that cycle, the coulomb counter recalibrates to the new cell and the shutdowns stop.

After replacing the battery, my iPhone 7 Plus won't fast charge — it just trickle charges. Is the new cell faulty?

The USB-PD handshake and the BMS on a new cell sometimes don't negotiate full charge current on the very first cycle. This is a known first-cycle behaviour, not a defective cell. Unplug, let the phone discharge to around 10%, then reconnect your fast charger. If fast charging still doesn't engage after that, reset network and system settings and re-test — some iOS builds need a settings reset before the charge IC re-negotiates the protocol correctly.

The battery percentage jumps around erratically — goes from 60% to 45% in seconds, then back up. What's causing that?

Erratic percentage readings point directly to the fuel gauge IC recalibrating after a cell swap. The IC's internal model was built around thousands of cycles on the original cell; the new cell has a different impedance and voltage profile at every state of charge. The gauge is interpolating against stale data. Complete two full discharge-charge cycles at standard current — no fast charging — and the IC will lock onto the new cell's curve. After the second cycle, percentage readings stabilise.

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Bancontact
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Related Products

Apple iPhone 7 Plus Replacement Battery, 3.82V, 2900mAh, Li-Polymer 1

Engineered for Performance. Built to Last.

Check out our top-rated selection of reliable products built to last. We offer high-quality options that deliver consistent performance for all your needs.

Our Collections