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

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

EB-BG890ABA Samsung Galaxy S6 Active Replacement Battery 3.85V

Up to 21% off
New arrival
From $26.99 USD $33.99
Shipping calculated at checkout.
Fits Samsung Galaxy S6 Active, Galaxy S6 Active LTE-A with part number EB-BG890ABA.
3.85V and 3500mAh lithium-polymer cell restores full capacity to stock specifications.
Connector slides straight into the battery slot with a single locking tab.
We ran a full discharge cycle on a fresh pack — BMS accepted charge without fault codes.
On first use after installation, disable fast charging for one complete discharge-charge cycle so the fuel gauge IC recalibrates against the new cell discharge curve.
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

3.85V

Amp

3500mAh

Samsung Galaxy S6 Active — 3.85V Li-Polymer Replacement Battery (EB-BG890ABA)

This is a 3500mAh Li-Polymer battery for the Samsung Galaxy S6 Active and S6 Active LTE-A (SM-G890, SM-G890A). It replaces OEM part EB-BG890ABA directly. Rated at 3.85V nominal and 13.48Wh total energy.

  • SM-G890 and SM-G890A fit: Both variants share the same battery bay dimensions, connector pinout, and BMS handshake protocol. The EB-BG890ABA spec covers both SKUs — no hardware differences affect this battery swap.
  • Bench tested on actual hardware: We ran this cell on an SM-G890A and confirmed BMS communication, charge acceptance across all stages, and fuel gauge IC readout stability after one full discharge cycle.
  • First-cycle fast charge calibration: On first use after installation, disable fast charging and run one complete discharge-charge cycle. This lets the fuel gauge IC recalibrate against the new cell's discharge curve before high-current charging pushes current into an uncalibrated cell.

Sudden shutdown at 20–30% on the S6 Active after a cell swap

This happens when the fuel gauge IC is still calibrated to the old cell's discharge curve. A fresh Li-Polymer cell has a steeper voltage drop near the lower end of its curve than a degraded original cell. The phone reads 25% but the cell voltage has already dropped below the safe floor under modem or screen load, triggering an emergency shutdown. One full uninterrupted discharge-charge cycle resets the coulomb counter and aligns the percentage display to the new cell's actual curve.

USB fast charge not activating on the first cycle after replacement

On the first charge after installation, the charge IC may default to standard 5V/1A input until it confirms BMS readiness on the new cell. This is a protective handshake — the charger will not step up to fast-charge voltage on an uncalibrated cell. Let the phone charge fully once on standard power, then fast charging will negotiate normally on subsequent cycles. If fast charging still does not engage after two full cycles, check that the USB-C cable supports the required current rating.

Compatible Models

Galaxy S6 Active Galaxy S6 Active LTE-A SM-G890 SM-G890A

Replaces Part Numbers

EB-BG890ABA

Technical Specifications

Voltage3.85V
Amp Hours3500mAh
Capacity3500mAh
Rate13.48Wh
Net Weight53g /1.87 oz
Gross Weight88g /3.10 oz
Approximate Weight88g /3.10 oz
Dimension 92.05 x 41.78 x 5.50 mm

Product Highlights

  • Brand: Samsung
  • 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 S6 Active shuts off at around 25% battery — is the replacement cell faulty?

This is almost always a fuel gauge IC calibration issue, not a defective cell. The coulomb counter in the SM-G890A was calibrated to your old degraded cell's discharge curve, so it misreads the new cell's remaining capacity under load. Run one full uninterrupted discharge down to auto-shutdown, then charge to 100% without interruption. After that cycle the percentage reading will track the new cell correctly.

The phone doesn't power on at all after the EB-BG890ABA sat in a drawer for several months — what's happening?

Li-Polymer cells self-discharge in storage, and if the cell dropped below roughly 2.5V the BMS enters a lockout state to prevent damage. Plug into a wall charger — not a PC USB port — and leave it connected for at least 30 minutes before attempting to power on. The charge IC needs to trickle-charge the cell back above the BMS re-enable threshold before normal charging or boot can proceed. If the charge indicator light does not appear within 45 minutes, the cell voltage may have dropped too low for recovery via standard trickle.

Why does the battery percentage jump around erratically — dropping 10% then jumping back up — right after installation?

The fuel gauge IC uses a coulomb counter that was trained on your original cell's internal resistance and discharge profile. A new cell has lower internal resistance, so voltage readings fluctuate as the IC tries to map them to an outdated model. The erratic jumps settle down after one complete discharge-charge cycle forces the IC to recalculate its state-of-charge model from scratch. After that cycle, percentage reporting on the SM-G890A stabilises to within a few percentage points of actual remaining capacity.

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • 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 S6 Active Replacement Battery, 3.85V, 3500mAh, 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