Szzt KS8223 Payment Terminal Replacement Battery 3.7V 4950mAh

Szzt KS8223 — 3.7V Li-ion Replacement Battery (1ICP7/60/90)

This is a 3.7V, 4950mAh Li-ion battery for the Szzt KS8223 payment terminal. It matches the OEM part number 1ICP7/60/90 and fits the KS8223 form factor directly. Voltage and capacity figures come from the product data, not estimates.

• KS8223 platform fit: The KS8223 uses a single-cell 3.7V Li-ion architecture with a BMS that validates cell voltage and thermistor response at boot. This replacement carries the same voltage rail and connector pinout, so the terminal's power management IC accepts the handshake without error flags.
• Bench tested on actual hardware: We cycled this battery through full charge and discharge on the KS8223 platform, monitoring BMS response during the receipt printer motor-start surge and wireless transaction load. The protection circuit held without tripping an overcurrent cutoff under combined draw.
• First deployment cycle: After installation, run at least one complete transaction — including a receipt print — before putting the terminal into live service. The KS8223 maps cell capacity during normal operation, and the charge indicator will not read accurately until the terminal completes one full power cycle with real load.

Terminal not completing PCI boot sequence after battery swap

The KS8223 runs a PCI-compliant boot check that includes a battery authentication step. On a new cell, the BMS may not have completed its first handshake with the terminal's charge IC, which can stall the boot sequence before the OS loads. This is not a fault with the battery — it is the terminal waiting for a recognised charge state. Charge the battery to full with the terminal powered off, then power on. That single charge cycle is usually enough to clear the boot hold.

Terminal rebooting mid-transaction during receipt print

The receipt printer motor in the KS8223 draws a short but sharp current spike at the start of each print job. If the cell voltage is already low or the BMS overcurrent threshold is marginal, that spike can trip a protective cutoff and force a hard reboot. The result looks like a random crash, but it is consistently tied to print events. Keep the battery above 20% charge during active service, and confirm the terminal firmware is current — some firmware versions adjusted the BMS trip threshold specifically for printer load.