Szzt KS8223 Payment Terminal Replacement Battery 3.7V 4950mAh EasyCut 50-Li so the body flags it

so the body flags it as unrecognised or shows a low-battery warning despite a full charge

Verify your existing battery dimensions before ordering and select the HRL12500WFR to secure dependable backup power

The phone's protection circuit reads that voltage sag as a hard cutoff

"unknown battery

that EEPROM data doesn't match the learned baseline the BIOS built against the old pack

Szzt KS8223 Payment Terminal Replacement Battery 3.7V 4950mAh EasyCut 50-Li so the body flags itSzzt 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