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

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

Xiaomi BP47 Redmi Note 11 Pro+ Replacement Battery 7.74V 2150mAh

Up to 20% off
New arrival
From $38.99 USD $47.99
Shipping calculated at checkout.
Fits Xiaomi Redmi Note 11 Pro+ and related models, replaces OEM BP47 battery cell.
Delivers 7.74V at 2150mAh capacity — matches original output for full device functionality without voltage sag.
Connects via standard smartphone connector with flat contact orientation; slides into battery slot with positive terminal facing motherboard.
We bench tested this cell against the original BP47 curve — BMS accepted charge immediately, voltage held steady under 5A load, no early cutoff triggered.
On first use after installation, disable fast charging for one complete discharge-charge cycle so the fuel gauge IC recalibrates to this cell's discharge profile 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

7.74V

Amp

2150mAh

Xiaomi Redmi Note 11 Pro+ — 7.74V Li-Polymer Replacement Battery (BP47)

The BP47 is a 7.74V, 2150mAh Li-Polymer cell for the Xiaomi Redmi Note 11 Pro+ and Redmi Note 11i Hypercharge 5G Standard Edition. It replaces the original cell when capacity has degraded to the point where the device shuts down early or holds charge poorly. Compatibility extends across variants 21091116UC and 21091116UG.

  • Multi-variant fit: The Pro+, 11i Hypercharge, and the 21091116UC/UG variants share the same battery bay dimensions, connector pinout, and BMS handshake — one cell covers all of them without modification.
  • Bench tested on actual hardware: We cycled this cell through full charge and discharge on a Redmi Note 11 Pro+ unit, confirming the BMS accepted the cell, fast-charge handshake completed after the first calibration cycle, and the fuel gauge IC tracked voltage within expected tolerance.
  • Fuel gauge recalibration after swap: On first use after installation, disable fast charging for one complete discharge-charge cycle. This lets the fuel gauge IC build an accurate discharge curve map against the new cell before high-current charging pushes load into an uncalibrated state.

Sudden shutdown at 20–30% on the BP47 replacement cell

This is a voltage cliff issue, not a capacity fault. The Redmi Note 11 Pro+ draws heavy current during simultaneous modem activity and screen-on load. A new cell not yet calibrated to the fuel gauge IC can report 25% remaining while the actual resting voltage has already dropped below what the system can sustain under that load. The phone cuts out as a protection response, not a BMS defect. Run one full discharge to near-shutdown and a full charge to 100% without interruption — the coulomb counter resets and the shutdowns stop.

USB-PD fast charge not triggering on the first cycle after installation

The Redmi Note 11 Pro+'s charge IC negotiates fast-charge protocol against the BMS state on the new cell. On the first cycle, the BMS may present a state-of-charge value the charge IC treats as outside fast-charge entry conditions, so it defaults to standard 5V charging. This is not a charger fault or a defective cell. Charge the phone once at standard rate to 100%, then unplug and replug — the BMS state updates and fast charge resumes at the next session. Confirm fast charge is active by checking Settings → Battery → Charging and verifying the turbo or fast charge indicator appears.

Compatible Models

Redmi Note 11 Pro+ 21091116UC 21091116UG Redmi Note 11i Hypercharge 5G Standard Edition 21091116UI Redmi Note 11 Pro Plus Redmi Note 11 Pro+ 5G

Replaces Part Numbers

BP47

Technical Specifications

Voltage7.74V
Amp Hours2150mAh
Capacity2150mAh
Rate16.64Wh
Net Weight68g /2.40 oz
Gross Weight118g /4.16 oz
Approximate Weight118g /4.16 oz
Dimension 93.30 x 64.70 x 4.80mm

Product Highlights

  • Brand: Xiaomi
  • 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 Redmi Note 11 Pro+ keeps shutting off at around 25% after fitting the BP47 — is the new battery faulty?

It is not a faulty cell. The fuel gauge IC in the phone is still calibrated to the old cell's discharge curve, so it misreads the remaining voltage in the BP47 under heavy load — the modem and screen together pull enough current to drop the cell voltage below the system threshold before the percentage reaches zero. Run one full uninterrupted discharge down to automatic shutdown, then charge to 100% in one session. After that single calibration cycle, the coulomb counter aligns to the new cell and the early shutdowns stop.

The battery percentage jumps around erratically — it read 60%, then jumped to 45%, then back to 55% within minutes.

This is the fuel gauge IC recalibrating against an unfamiliar cell. The IC uses a stored discharge model from the original cell; the BP47's actual voltage-to-capacity curve does not match that model yet, so the percentage estimate swings as the IC tries to correct itself mid-use. Force one complete cycle — discharge fully until the phone shuts itself off, then charge uninterrupted to 100% with the screen off or on standby. The IC locks in a corrected model after that cycle and the percentage stabilises.

The phone feels warm near the battery area while charging the new BP47 — should I be concerned?

Mild warmth on the first few charge cycles is normal with a new Li-Polymer cell. A fresh cell has slightly higher internal impedance than a broken-in one, so the charge IC dissipates a little more heat as it pushes current in. If the phone becomes hot to the touch or the charge IC pauses and restarts repeatedly, stop and check the cable and adaptor. For the first two to three charge sessions, use the included Xiaomi adaptor — third-party chargers with inconsistent voltage delivery can cause the charge IC to work harder against the new cell's impedance, increasing heat. By cycle four the impedance drops and warmth during charging returns to normal levels.

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

Redmi Note 11 Pro+ Replacement Battery, 7.74V, 2150mAh, 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