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

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

Oppo Realme Pad Mini BLT003 Replacement Battery 3.87V 6200mAh

Up to 20% off
New arrival
From $40.99 USD $50.99
Shipping calculated at checkout.
Fits Realme Pad Mini tablets including Wi-Fi, 4G, and LTE models; replaces OEM part BLT003.
Delivers 3.87V and 6200mAh (23.99Wh) to restore full charge cycles on this Li-Polymer pack.
Connector seats vertically into the battery slot with a single locking tab on the left side.
We bench-tested the cell against a fuel gauge IC reset cycle; BMS accepted voltage handshake cleanly.
After installation, run one full discharge to automatic shutoff then charge uninterrupted to 100% — this resets the fuel gauge IC calibration against the new cell and resolves inaccurate percentage display that appears after a swap.
Delivery time

This product ships directly from our Manufacturer’s Warehouse and is usually delivered within 5 – 8 business days to your doorstep.

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

3.87V

Amp

6200mAh

Oppo Realme Pad Mini — 3.87V Li-Polymer Replacement Battery (BLT003)

This is a 3.87V, 6200mAh (23.99Wh) Li-Polymer battery for the Realme Pad Mini tablet. It fits the Wi-Fi, 4G, and LTE variants. It replaces part number BLT003 using the original connector and dimensions (129.00 x 107.20 x 3.00mm).

  • Realme Pad Mini variant compatibility: The Wi-Fi, 4G, and LTE models all share the same BLT003 cell, connector pinout, and BMS communication protocol — one battery services all three without modification.
  • Bench tested on actual hardware: We ran this cell through charge and discharge cycles on the Realme Pad Mini platform. The BMS accepted the new cell on first connection and reported state-of-charge within normal parameters after a full calibration cycle.
  • Fuel gauge recalibration after swap: After fitting this battery, run the tablet down to automatic shutoff, then charge uninterrupted to 100%. The fuel gauge IC calibrates against the old cell's data — one complete cycle resets it against the new cell and clears inaccurate percentage readings.

Tablet shutting down at 15–25% remaining after battery replacement

The Realme Pad Mini's display and simultaneous Wi-Fi activity create a combined load spike that hits the battery hard in the lower state-of-charge range. At around 3.5V cell voltage, the BMS interprets the voltage sag from that combined draw as a critically low condition and cuts power before the fuel gauge reaches 0%. The fix is a full discharge-to-shutoff cycle followed by a complete uninterrupted charge. After that single calibration cycle, the fuel gauge IC maps the new cell's actual voltage curve and the shutdowns stop.

Fast charging unavailable after fitting the BLT003 replacement

Realme's proprietary fast charge protocol requires at least one completed charge handshake cycle before the charge IC trusts a new cell's negotiation data. If fast charging doesn't appear immediately after installation, this is expected behaviour — not a fault with the battery. Plug in using the original Realme adapter, allow one full charge to 100%, and disconnect. On the next charge session the adapter and charge IC should complete the handshake and fast charge will resume.

Compatible Models

Realme pad mini Realme Pad Mini Wi-Fi Realme Pad Mini 4G Realme Pad Mini LTE RMP2105

Replaces Part Numbers

BLT003

Technical Specifications

Voltage3.87V
Amp Hours6200mAh
Capacity6200mAh
Rate23.99Wh
Net Weight98g /3.46 oz
Gross Weight238g /8.40 oz
Approximate Weight238g /8.40 oz
Dimension 129.00 x 107.20 x 3.00mm

Product Highlights

  • Brand: Oppo
  • 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 Realme Pad Mini shows 40% battery but just shuts down without warning — is that a calibration problem?

Yes — this is a fuel gauge IC issue, not a faulty cell. The IC was calibrated to your old battery's voltage curve, so it misreads where the new cell actually runs out of usable charge. Run the tablet down to automatic shutoff, then charge it uninterrupted to 100% using the original adapter. After that one cycle the fuel gauge remaps against the BLT003 cell and the premature shutdowns stop.

The battery percentage on my Realme Pad Mini is dropping faster than expected from 100% — it loses 20% in the first hour but then slows down. What's going on?

This is fuel gauge drift after a battery swap. The percentage readout is pulled from a charge map that was built around the old cell — it doesn't match the new cell's actual discharge curve yet. The drop looks steep early and then flattens because the IC is correcting in real time. Do one full discharge-to-shutoff followed by a complete charge to 100%, and the curve will normalise from the top of the next cycle.

Fast charging stopped working on my Realme Pad Mini after I replaced the battery — the tablet charges but only at the slow rate.

Realme's fast charge handshake needs at least one accepted full-charge cycle before the charge IC confirms the new cell as trusted. Using a third-party cable or charger during that first cycle can block the negotiation entirely. Charge from 0% to 100% using the original Realme adapter and cable without interruption. After that session, fast charging should reinstate on the following plug-in.

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

Oppo Realme pad mini Replacement Battery, 3.87V, 6200mAh, 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