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OMA Emirates OM-A880 Payment Terminal Compatible Battery 7.4V 2600mAh

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From $30.99 USD $38.99
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Fits OMA Emirates OM-A880 payment terminal; replaces OEM part number LR18650SK-2S.
7.4V 2600mAh lithium-ion cell delivers consistent voltage throughout transaction cycles without mid-sale dropouts.
Connector slides into dual-cell slot with positive terminal facing outward; locking tab seats flush against terminal housing.
We ran full transaction cycles on bench; BMS accepted handshake after first complete boot sequence without fault codes.
After installation, complete one full transaction cycle before deploying live — the terminal maps battery capacity during operation and requires one power cycle to calibrate the charge indicator correctly.
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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.

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⚠️ 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

7.4V

Amp

2600mAh

OMA Emirates OM-A880 — 7.4V Li-ion Replacement Battery (LR18650SK-2S)

This 7.4V 2600mAh Li-ion battery replaces the OEM LR18650SK-2S cell pack in the OMA Emirates OM-A880 portable payment terminal. It fits the OM-A880 directly, matching the original connector, voltage rail, and BMS communication protocol. Capacity is 2600mAh (19.24Wh), identical to the factory specification.

  • OM-A880 fit and connector: The OM-A880 uses a fixed 7.4V two-cell Li-ion configuration with a dedicated BMS handshake line. This replacement matches that pinout and voltage rail exactly — the terminal's charge IC recognises the pack and enters normal charge mode without fault codes.
  • Bench tested on actual hardware: We cycled this pack through full charge, idle standby, and active transaction loads including simultaneous receipt printing and wireless connectivity. The BMS held stable across all draw profiles with no overcurrent trips or voltage drop events.
  • First-deployment cycle on the OM-A880: After installation, run at least one complete transaction cycle before going live — the terminal maps battery capacity during normal operation and needs one full power cycle to calibrate the charge indicator correctly. Deploying before this step often causes the charge gauge to display inaccurate percentages.

Terminal not completing PCI boot sequence on a new battery

The OM-A880 runs a BMS handshake check early in its PCI boot sequence. On a new pack, the BMS may not yet have a recognised charge history, causing the terminal to stall or loop before reaching the home screen. This is not a fault with the battery — it is the terminal waiting for the pack to complete its first full charge-discharge acknowledgement. Charge the terminal to 100%, power it off, then power it back on to complete the handshake. The boot sequence proceeds normally after that first full cycle.

Terminal reboots mid-sale during receipt printing

The OM-A880's receipt printer draws a short high-current spike when the print head fires — this can push instantaneous draw beyond what a degraded or deeply discharged pack can sustain, triggering a BMS overcurrent cutoff and resetting the terminal. On a new replacement pack, this reboot pattern at the point of print usually means the cell has not yet reached full resting voltage after installation. Charge the unit fully to 4.2V per cell (8.4V pack total) before the first live transaction. If reboots continue after a full charge, confirm the terminal firmware is current — some OM-A880 firmware versions have a known print-current threshold that requires an update.

Compatible Models

OM-A880

Replaces Part Numbers

LR18650SK-2S

Technical Specifications

Voltage7.4V
Amp Hours2600mAh
Capacity2600mAh
Rate19.24Wh
Net Weight95.4g /3.37 oz
Gross Weight165.4g /5.83 oz
Approximate Weight165.4g /5.83 oz
Dimension 70.00 x 36.70 x 19.22 mm

Product Highlights

  • Brand: OMA Emirates
  • Manufacturer: CS
  • Series: Standard
  • Color: Blue
  • Product Type: Li-ion
  • Battery Type: Li-ion
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

My OM-A880 has been sitting unused for a few months and now won't power on at all — is the battery dead?

Extended storage without a charge cycle can push the Li-ion cells below the recovery threshold, typically under 2.5V per cell. At that point the BMS locks out the pack as a protection measure and the terminal shows no response. Connect the terminal to the charger and leave it for at least 60 minutes before attempting to power on — most chargers can trickle-charge a depleted pack back above the BMS recovery threshold of approximately 2.9V per cell. If the terminal still shows nothing after 60 minutes on charge, the original pack has likely passed its recovery point and needs replacing with a fresh LR18650SK-2S unit.

The battery indicator on my OM-A880 is stuck at 99% and won't move to 100% even after hours on charge — is something wrong?

Nothing is wrong. When a new Li-ion cell is first charged, the charge IC enters a top-off mode that trickles current at a low rate to bring each cell to exactly 4.2V. This phase can hold the display at 99% for an extended period before the IC signals full charge. The terminal will show 100% once the top-off current drops below the IC's termination threshold — this is normal cell conditioning behaviour, not a charge fault. Unplug and replug the charger once to reset the charge IC display if it remains at 99% beyond two hours.

The OM-A880 gets noticeably warm during a busy transaction period — is that a battery issue or a terminal issue?

During high-volume periods, the terminal runs the display, wireless radio, and receipt printer simultaneously — this combined draw raises the pack temperature above idle levels and is normal for this form factor. The BMS on the LR18650SK-2S pack has a thermal cutoff that trips if cell temperature exceeds approximately 60°C. If the terminal is shutting down under sustained load rather than just feeling warm, allow it to cool for five minutes at idle and check that the terminal's ventilation area is not covered or obstructed. A pack that trips on thermal cutoff repeatedly under normal load is a sign the cells have degraded and the pack should be replaced.

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