Q1: Why does the battery level display occasionally deviate when using this battery with the new SCHILLER Fred Easy model?

A1: "Battery and device calibration are out of sync," not a battery malfunction.

Fully discharging the battery and then repeatedly recharging it with the original charger usually restores synchronization. If the deviation persists after calibration, check the device's power detection module for a malfunction.

Q2: After one year of use, the battery suddenly displays "Insufficient battery, unable to shock" during emergency defibrillation, even though the device previously displayed a 50% charge. What's the cause?

A2: The normal display is based on low-power scenarios, while defibrillation requires instantaneous high power. If the battery cell experiences "high-rate discharge capacity degradation," the normal display under normal circumstances may not meet defibrillation requirements. The battery needs to be replaced at this time, as the degraded cell cannot be calibrated to restore high power output, and continued use may delay emergency response.

Q3: If the battery has been stored for an extended period (e.g., 6 months without use), and the defibrillator displays a "Battery Activation Failed" message when reactivated, what should I do?

A3: Long-term storage may cause the battery to enter "deep sleep mode," where the device's protection mechanism prevents activation.

You can first charge the battery separately using the original charger. After charging for 10-15 minutes, disconnect the charger and let it sit for 5 minutes. Repeat this process 2-3 times, gradually increasing the cell voltage to above 11.5V before using the battery as intended. If the battery still fails to activate, the cell is damaged and a new battery is required.