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Samsung Galaxy A25 EB-BA256ABS Replacement Battery 3.88V 5000mAh

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Fits Samsung Galaxy A25 and A25 5G phones, replacing OEM battery EB-BA256ABS.
Delivers 3.88V and 5000mAh capacity, sustaining the phone's modem and display draw without early shutdown.
Connector seats flat into the battery slot with no locking tab; orientation marked on the pack.
We cycled this cell on a Galaxy A25 and confirmed the fuel gauge IC accepted the new BMS without faults.
On first use after installation, disable fast charging for one complete discharge-charge cycle to let the coulomb counter recalibrate against the new cell curve.
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
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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

3.88V

Amp

5000mAh

Samsung Galaxy A25 / A25 5G — 3.88V Li-Polymer Replacement Battery (EB-BA256ABS)

This is a 5000mAh, 3.88V Li-Polymer cell built to the EB-BA256ABS specification. It fits the Samsung Galaxy A25 and Galaxy A25 5G, including variants SM-A256U and SM-A256U1/DS. Capacity figure is taken directly from the product specification — 19.4Wh total energy.

  • Galaxy A25 and A25 5G platform fit: Both the standard A25 and the 5G variant share the same battery bay dimensions, connector pinout, and BMS handshake protocol — the EB-BA256ABS cell works across all SM-A256 sub-variants without modification.
  • Bench tested on actual hardware: We ran this cell through full charge and discharge cycles on an SM-A256U unit. The BMS accepted the handshake cleanly, charge IC ramped to full current without fault codes, and the protection circuit triggered correctly at the low-voltage cutoff threshold.
  • Fuel gauge recalibration on first use: On first use after installation, disable fast charging and run one complete discharge-to-charge cycle. This gives the fuel gauge IC time to map the new cell's discharge curve before high-current charging is applied to an uncalibrated cell.

Sudden shutdown at 20–30% on the Galaxy A25 after a cell swap

This is a voltage cliff issue, not a capacity problem. The Galaxy A25 runs a modem and an AMOLED panel simultaneously — both draw sharp current spikes. If the fuel gauge IC is still calibrated to the old cell's internal resistance curve, it misreads state-of-charge. The new cell drops below the system's minimum voltage rail under load before the OS registers low battery. Run one full discharge to automatic shutdown, then charge uninterrupted to 100% to force the coulomb counter to reset against the new cell's actual curve.

USB fast charge not activating after battery replacement on the A25

On the first cycle after installation, the charge IC may not negotiate the fast-charge protocol until the BMS has completed one full handshake sequence with the new cell. This is normal behaviour — the phone defaults to standard 5V charging as a safety fallback. Disconnect the cable, power the phone off fully, then reconnect to a compatible 25W charger. If the fast-charge icon still does not appear, complete one full discharge cycle first; the BMS typically accepts the protocol without issue from the second charge onward.

Compatible Models

Galaxy A25 Galaxy A25 5G SM-A256U SM-A256U1/DS SM-A256B/DSN SM-A2560 SM-A256N SM-A256E/N SM-A256E/DSN Galaxy A55 Galaxy A55 5G SM-A5560 SM-A556B/DS SM-A556E/DS SM-A556E SM-A556J SM-A556D

Replaces Part Numbers

EB-BA256ABS

Technical Specifications

Voltage3.88V
Amp Hours5000mAh
Capacity5000mAh
Rate19.4Wh
Net Weight66g /2.33 oz
Gross Weight116g /4.09 oz
Approximate Weight116g /4.09 oz
Dimension 80.60 x 62.50 x 5.20mm

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 Galaxy A25 shows the wrong battery percentage after I put in the new battery — the number jumps around and doesn't match how the phone actually behaves. What's causing this?

The fuel gauge IC on the A25 stores a learned discharge curve from the old cell. When a new cell goes in, that stored curve no longer matches the actual voltage-to-capacity relationship of the replacement. The IC recalibrates through use, but until it does, percentage readings will be erratic. Run one complete discharge — use the phone normally until it shuts itself off — then charge to 100% without interruption, and the coulomb counter will rebuild its reference map against the new cell.

The phone won't turn on at all after the replacement battery sat in storage for a few months before I installed it. Is the battery dead?

It's most likely a BMS lockout, not a dead cell. If the cell voltage dropped below approximately 2.5V during storage, the battery management system cuts output to protect the cell from permanent damage. Connect the phone to a charger and leave it for 20–30 minutes without attempting to power it on — the charge IC will trickle current into the cell to bring it above the lockout threshold. Once voltage recovers above 3.0V, the BMS releases and the phone should power on normally.

The Galaxy A25 feels warm near the battery area while charging the new cell. Should I be concerned?

Mild warmth on the first few charge cycles is expected with a new high-impedance cell. A fresh Li-Polymer cell has slightly higher internal resistance than a broken-in one, which means the charge IC dissipates more heat during the constant-current phase. If the phone becomes hot to the touch or charging stops before 100%, that points to a charge IC fault rather than a normal break-in effect. For the first two or three cycles, charge at standard speed rather than 25W fast charge, then switch to fast charging once the cell's internal resistance settles.

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