⚙️ Model Compatibility: Essae DS-450, DS-450SS, and DS-451 (Note: Internal batteries are generally not applicable for Flame Proof machines)[cite: 6].
If the battery indicator is flashing or the display outright shows "shutoff", it indicates a low battery or deep discharge state[cite: 6].
Troubleshooting Steps:
1. Connect the machine to an active 230V AC power supply[cite: 6].
2. Recharge the battery continuously for 8 to 10 hours[cite: 6].
3. If the scale immediately shuts off when AC power is removed after a full charge cycle, replace the battery[cite: 6].
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