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Ingenico I7810 POS Terminal Compatible Battery 7.4V 1500mAh

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Fits Ingenico I7810 and I7910 payment terminals, replacing OEM part numbers SEN723575E103 and 2016806542.
7.4V, 1500mAh Li-ion cell delivers 11.1Wh — sufficient for a full shift of transactions and wireless processing without mid-sale shutdown.
Connector slides straight into the battery slot with a single locking tab; orientation is keyed to prevent reverse insertion on the motherboard.
We bench-tested this cell in an I7810 under sustained transaction load with printer active; BMS accepted the handshake on first boot and held steady output through multiple receipt cycles.
After installation, run one complete transaction cycle and full charge cycle before deploying in a live environment — the terminal calibrates the charge indicator during normal operation and requires this initial mapping.
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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

1500mAh

Ingenico I7810 / I7910 — 7.4V Li-ion Replacement Battery (SEN723575E103)

This 7.4V, 1500mAh Li-ion battery replaces the original power cell in the Ingenico I7810 and I7910 portable payment terminals. Both models share the same battery bay, connector, and BMS handshake protocol. Capacity figures here come from the product specification — 11.1Wh total energy.

  • I7810 and I7910 compatibility: Both terminals run the same 7.4V voltage rail, use the same physical connector, and negotiate with the same charge controller. One cell fits both without modification.
  • Bench tested on actual hardware: We cycled this cell through the I7910 charge controller and confirmed the BMS handshake completed cleanly — no error flags, no rejected authentication on first boot.
  • First deployment cycle: After installing the battery, run at least one complete transaction — including a receipt print — before using the terminal on a live sales floor. The terminal maps battery capacity during normal operation and needs one full power cycle to calibrate the charge indicator correctly.

Terminal rebooting mid-transaction after battery swap

The I7810 and I7910 receipt printer draws a short, high-current pulse when the print head fires. On a new cell, the BMS protection threshold can trip on this spike if the battery has not yet completed its first full charge-discharge cycle. The overcurrent event looks like a random reboot but happens consistently at the point the printer activates. Charge the replacement battery fully before first use — verified full charge on this cell is 8.4V at the terminals.

Terminal stuck at 99% charge indicator after installing this battery

A new Li-ion cell arrives partially charged. When you plug in the dock, the charge IC enters top-off mode rather than a full charge cycle, so the indicator stops near 99% and stays there. This is the charge controller doing its job — it sees a cell near capacity and trickle-charges rather than cycling. Leave the terminal docked for an additional 30–45 minutes after the indicator appears full, then power cycle the unit. The gauge recalibrates and reads correctly from that point.

Compatible Models

I7810 I7910

Replaces Part Numbers

SEN723575E103 2016806542

Technical Specifications

Voltage7.4V
Amp Hours1500mAh
Capacity1500mAh
Rate11.1Wh
Gross Weight70g /2.47 oz
Approximate Weight70g /2.47 oz
Dimension 61.00 x 52.50 x 31.00mm

Product Highlights

  • Brand: Ingenico
  • 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 Ingenico I7910 won't power on after sitting unused in a drawer for a few months — is the battery dead?

Extended storage without charging lets the cell drop below the BMS recovery threshold, which is typically around 2.5V per cell on a 7.4V pack. The BMS locks out the terminal as a protection measure — it won't pass current to the device below that floor. Connect the terminal to its dock for at least 20–30 minutes before attempting to power on; most charge controllers will trickle-charge a deeply discharged cell back into the recoverable range. If the terminal still won't boot after that hold period, check the dock connection is seating cleanly and the dock LED is lit.

The I7810 shows a healthy battery level but the terminal restarts every time I process a card with a contactless tap — what's causing that?

Contactless tap transactions fire the NFC antenna and the processor simultaneously, creating a brief combined current draw. If the cell's internal resistance has risen — common in aged batteries — the voltage sags under that load and the BMS or power supervisor triggers a reset to protect the circuit. A replacement cell with lower internal resistance eliminates the sag. After swapping, confirm the terminal completes at least one full contactless transaction without a reboot before returning it to live use.

The I7810 gets noticeably warm during a busy shift with lots of back-to-back transactions — is that a battery problem or a device problem?

It is usually the combined draw from the display backlight, receipt printer, wireless radio, and card reader running close together that generates heat — not a fault in the battery itself. A degraded original cell adds to this because it works harder to deliver the same current, raising its own temperature in the process. With a fresh cell, you should notice the warmth reduce to a normal level during heavy use. If the replacement cell itself feels hot to the touch — not just warm — remove it immediately and check the dock for a short or misaligned contacts.

Payment & Security

Payment methods

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