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Ingenico DB Cox3 Replacement Battery 3.7V 1800mAh

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From $31.99 USD $39.99
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Fits Ingenico DB Cox3 payment terminals; replaces OEM part numbers B25030001 and BTY00017.
3.7V, 1800mAh Li-Polymer cell delivers 6.66Wh — sufficient capacity for a full merchant shift including card processing and receipt printing cycles.
Connector slides into the DB Cox3 battery bay with a single locking tab; orientation is keyed to prevent reverse insertion.
We bench-tested this cell in a Cox3 unit across transaction loads; the BMS accepted the handshake on first boot and held voltage stable through printer motor surges.
After installation, run one complete transaction cycle before live deployment — the terminal calibrates battery capacity during normal operation and requires this cycle to display the charge indicator correctly.
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

3.7V

Amp

1800mAh

Ingenico DB Cox3 — 3.7V Li-Polymer Replacement Battery (B25030001)

This 3.7V, 1800mAh Li-Polymer battery fits the Ingenico DB Cox3 portable payment terminal. It replaces OEM part numbers B25030001 and BTY00017. The DB Cox3 is a mobile POS device used by merchants in field and counter environments where battery condition directly affects transaction continuity.

  • DB Cox3 platform fit: The DB Cox3 uses a fixed 3.7V Li-Polymer cell with a specific connector and BMS handshake tied to the terminal's power management controller. This replacement matches that voltage rail and connector, so the terminal's charge IC recognises the cell correctly on first boot.
  • Bench tested on actual hardware: We ran this cell through full charge and discharge cycles on the DB Cox3 platform. The BMS accepted the handshake without fault codes, and the charge IC moved from bulk to top-off mode at the correct threshold.
  • First deployment cycle: After installing this battery, complete at least one full transaction cycle — including a receipt print — before deploying in a live environment. The terminal maps cell capacity during normal operation and needs one complete power cycle to calibrate the charge indicator correctly.

Terminal not completing PCI boot sequence after battery swap

The DB Cox3 runs a PCI security boot check on startup that draws a short burst of current. If the new cell hasn't completed a full charge cycle, the BMS may flag the draw as an anomaly and hold the boot process. This is a BMS initialisation issue, not a fault with the battery or terminal. Charge the battery to 100% with the terminal off, then power on and allow the full boot sequence to complete before use.

Terminal rebooting mid-transaction during receipt printing

The receipt printer in the DB Cox3 creates a brief high-current spike that older or degraded cells can't sustain without triggering BMS overcurrent protection — causing an unexpected reboot. A new cell at full charge handles this spike without tripping the cutoff. If reboots persist after fitting a fresh battery, check that the cell is fully charged before the first transaction; voltage below 3.6V under printer load is enough to trip the protection circuit.

Compatible Models

DB Cox3

Replaces Part Numbers

B25030001 BTY00017

Technical Specifications

Voltage3.7V
Amp Hours1800mAh
Capacity1800mAh
Rate6.66Wh
Net Weight112.4g /3.96 oz
Gross Weight162.4g /5.73 oz
Approximate Weight162.4g /5.73 oz
Dimension 64.78 x 37.56 x 13.12mm

Product Highlights

  • Brand: Ingenico
  • 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 DB Cox3 shows the battery indicator stuck at 99% after charging the new battery — is something wrong?

Nothing is wrong. When the charge IC detects a new Li-Polymer cell, it enters a top-off conditioning phase and holds the display at 99% until the cycle completes. This is normal behaviour on the DB Cox3 platform. Leave the terminal on charge for an additional 20–30 minutes and the indicator will step to 100% once the IC exits top-off mode.

My DB Cox3 won't power on after sitting unused in a drawer for a few months — what happened?

Extended storage with no charge causes Li-Polymer cells to self-discharge below the recovery threshold, typically under 3.0V. At that voltage, the BMS locks the cell as a safety measure and the terminal will not power on. Connect the terminal to the charger and leave it for at least two hours without interruption — the charge IC will attempt a trickle pre-charge to bring the cell back above the BMS unlock threshold of around 3.2V before resuming normal charging.

The DB Cox3 feels noticeably warm during busy transaction periods — is the new battery causing that?

The warmth comes from combined load, not the battery alone. During peak periods, the DB Cox3 is simultaneously running the display, wireless radio, and receipt printer — all drawing from a single 3.7V cell. Li-Polymer cells generate heat under sustained combined load, and the terminal housing traps some of that. Check that the terminal is not sitting flat on a surface that blocks the back panel. If it runs warm but does not shut down, the temperature is within normal operating range.

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