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

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

Samsung Galaxy Tab S3 EB-BT825ABE Replacement Battery 3.8V 6000mAh

Up to 20% off
New arrival
From $38.99 USD $47.99
Shipping calculated at checkout.
Fits Samsung Galaxy Tab S3 9.7 and SM-T820 models; replaces OEM part EB-BT825ABE.
3.8V, 6000mAh lithium-polymer cell delivers full capacity to restore normal tablet runtime and display brightness.
Connector slides into internal battery slot with single contact tab; orientation locks to prevent reverse insertion.
We tested the cell on bench discharge cycles; BMS accepted the new pack without error codes or cutoff faults.
After installation, run one full discharge to automatic shutoff then charge uninterrupted to 100% — this resets the fuel gauge calibration against the new cell and clears inaccurate percentage display that follows a swap.
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

3.8V

Amp

6000mAh

Samsung Galaxy Tab S3 9.7 — 3.8V Li-Polymer Replacement Battery (EB-BT825ABE)

This is a 3.8V, 6000mAh lithium-polymer cell replacing the internal battery in the Samsung Galaxy Tab S3 9.7 and Tab S3 9.7 XLTE. It fits SM-T820, SM-T827V, and related variants that share the EB-BT825ABE battery specification. Capacity is 22.8Wh — matching the original cell's energy rating.

  • SM-T820 and SM-T827V platform fit: These models share the same battery bay dimensions, connector pinout, and BMS handshake protocol. The 165.90 × 116.12 × 2.92mm cell format fits flush without modification, and the BMS communicates charge state correctly to the system IC on first boot.
  • Bench tested on actual hardware: We ran this cell through full charge and discharge cycles on SM-T820 hardware. The BMS accepted the new cell without fault flags, charge current ramped correctly through CC/CV phases, and the system reported state-of-charge without error prompts.
  • Fuel gauge recalibration after swap: 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 clears the inaccurate percentage readings that commonly appear after a battery replacement.

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

The Tab S3's power management IC learned the voltage discharge curve of the original degraded cell over months of use. When a new cell is installed, that stored curve no longer matches actual cell behaviour at low charge states. At around 3.6–3.65V, the display backlight and active WiFi pull combined current that drops apparent voltage below the old cutoff threshold the IC still references. The fix is one full recalibration cycle — drain to forced shutoff, then charge to 100% without interruption — so the IC maps the new cell's actual voltage floor.

Fast charging not resuming after battery replacement

Samsung's adaptive fast charge protocol requires the charge IC to complete at least one accepted charge handshake with the new cell before it enables higher current delivery. If fast charge shows as unavailable immediately after a swap, the IC is still running in standard mode. Connect the original Samsung fast charger and allow one full charge cycle to complete without interruption. After that cycle, fast charge negotiation resumes at the correct current rate.

Compatible Models

Galaxy Tab S3 9.7 Galaxy Tab S3 9.7 XLTE SM-T820 SM-T827V SM-T825N0 SM-T825 SM-T825Y SM-T825C

Replaces Part Numbers

EB-BT825ABE EB-BT825ABA GH43-04702A

Technical Specifications

Voltage3.8V
Amp Hours6000mAh
Capacity6000mAh
Rate22.8Wh
Net Weight100g /3.53 oz
Gross Weight240g /8.47 oz
Approximate Weight240g /8.47 oz
Dimension 165.90 x 116.12 x 2.92mm

Product Highlights

  • Brand: Samsung
  • 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 Tab S3 says 45% battery but then shuts off without warning — is the new cell defective?

The cell is not defective. The fuel gauge IC on the Tab S3 was calibrated to the old battery's discharge curve, and it no longer matches the new cell's actual voltage behaviour at lower charge states. At around 3.6V, combined load from the display and WiFi triggers a cutoff the IC incorrectly interprets as empty. Run one full discharge to automatic shutoff, then charge uninterrupted to 100% — that single cycle recalibrates the IC against the new cell's real voltage floor.

The battery percentage on my Tab S3 is jumping around after the swap — it went from 60% to 80% after I unplugged it

Percentage jumps after a battery replacement are a fuel gauge drift issue, not a wiring or cell fault. The onboard fuel gauge IC stores a charge model built from hundreds of cycles on the original cell, and the new cell's impedance profile doesn't match it yet. Do not rely on the percentage reading until you run one full recalibration cycle: drain the tablet to forced shutoff under normal use, then charge uninterrupted to 100%. The gauge stabilises after that cycle.

My Tab S3 gets noticeably warm near the top edge while charging the new battery — is that normal?

Warmth near the top edge is where the charge IC and battery connector sit on the SM-T820 board, so that's the expected location for heat during charging. A new lithium-polymer cell draws full CC-phase current from the start because its internal resistance is lower than a degraded original cell — the charge IC dissipates more heat briefly as a result. If the tablet stays warm but below uncomfortable-to-touch, that's within normal range. If it becomes hot and charging slows sharply, check that the USB-C cable is not a third-party cable that caps current — swap to the original Samsung cable and the charge IC will manage thermals correctly.

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

Samsung Galaxy Tab S3 9.7 Replacement Battery, 3.8V, 6000mAh, 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