Description

User Manual for Power Bank  Initial Activation New power banks come with pre-installed test charge ("virtual charge").  Step 1: Fully use the virtual charge until the power bank reaches 0% and stops outputting (the virtual charge depletes quickly, e.g., dropping from 60% to 0% suddenly is normal).  Step 2: Fully recharge the power bank to 100% (the display will show "100" steadily without blinking).  Step 3: Discharge it completely to 0% again.  Repeat the full charge-discharge cycle 3 times to optimize battery accuracy and longevity.  Battery Level Display；  The digital screen shows the real-time remaining battery percentage.  When fully charged (100%), the display will remain steady without blinking.  Flashlight Function (if applicable)  Turn On: Double-click the power button or hold the button for 5 seconds.  Turn Off: Repeat the same operation.  Initial Usage: Battery Percentage Fluctuation  During the first 5 uses, the battery percentage may drop abruptly (e.g., from 50% to 0%) or drain too quickly.  Cause: The power bank’s "smart learning" feature is not yet calibrated due to residual virtual charge.  Solution: Reperform Step 1 (3 full cycles) to ensure accurate display and stable performance.  Sudden Drop to 0%  This is a normal phenomenon during calibration.  Fix: Repeat the charge-discharge cycles as described in Step 1.  Safety Guidelines  Charge the power bank in a well-ventilated area and avoid exposure to moisture, water, or extreme temperatures.  Do not subject it to strong impacts or drops.  Mild Heat/Sound During Charging  Slight heat generation or a soft buzzing sound during charging is normal, caused by the operation of resistors and smart control chips.

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