KAP ELSE eS-KAP-Ad VR Compatible Battery 3.7V 950mAh Li-ion

KAP ELSE eS-KAP-Ad VR / ESKAPAD — 3.7V Li-ion Replacement Battery (KAPACC0084090)

This 3.7V 950mAh Li-ion cell replaces the original battery in the KAP ELSE eS-KAP-Ad VR and ESKAPAD payment terminals. It matches the OEM part number KAPACC0084090 and fits the original battery bay without modification. Capacity is 950mAh (3.52Wh), sourced to match the original cell specification.

• eS-KAP-Ad VR and ESKAPAD compatibility: Both models share the same battery bay dimensions, connector pinout, and BMS handshake protocol — 46.20 × 34.14 × 5.68mm cell with a 3.7V nominal rail. One replacement covers either unit.
• Bench tested on actual hardware: We cycled this cell through a full charge, a PCI boot sequence, and a transaction loop. The BMS accepted the cell on first handshake, voltage held steady under combined display, wireless, and printer draw, and no overcurrent trips were recorded.
• First-use calibration on payment terminals: After installation, complete one full transaction cycle before deploying in a live environment. The terminal maps battery capacity during normal operation and needs at least one complete power cycle to calibrate the charge indicator correctly.

Terminal rebooting mid-transaction after battery swap

The eS-KAP-Ad VR draws a combined load from the display, wireless radio, and receipt printer motor at the point of sale. On a new or partially discharged cell, this simultaneous draw can spike current above the BMS overcurrent threshold, triggering a protective shutdown that looks like a random reboot. The fix is to complete a full charge cycle before first live use — the BMS recalibrates its trip threshold after the cell's first complete charge. If reboots continue, check that the battery contacts are fully seated; a loose connection raises internal resistance and worsens voltage sag under load.

Terminal not completing PCI boot sequence after battery installation

The KAP ELSE eS-KAP-Ad VR runs a PCI security boot check on every power-on, and that sequence draws a short high-current burst to initialise tamper detection and the secure element. A new cell that has not yet completed one full charge-discharge cycle may sit just below the voltage threshold the BMS requires to release full current for that burst — the terminal stalls or loops at the boot screen. Plug the terminal into the charger until it reads a full charge, then power it on fresh. One complete boot-charge cycle is enough for the BMS to accept normal operating conditions; the sequence will complete at 4.1V or above.