The power of the portable power bank has run out and needs to be recharged.

The remaining battery of the power bank is zero, please recharge the power bank again.

Use the matching charger to charge the portable power bank for 12 hours and 10 hours respectively.

1. The power of the portable power bank is low and needs to be recharged;

2. If the output line and adapter are not connected, unplug or replace the output line;

3. The selected adapter is incorrect. Replace it with the correct plug;

4. The mobile device power management system prohibits this method of power supply or charging, as the mobile power supply is not compatible with this device;

5. The charging settings for the mobile device system are incorrect, and the USB charging option for the computer needs to be checked.

External short circuit or excessive load of the power bank may cause automatic protection of the power bank output. Remove the external device and recharge the power bank to activate it.

The polymer battery cells built into the mobile power bank enter a low-temperature protection state when the ambient temperature is below 5 degrees Celsius, and can only resume normal operation when the ambient temperature rises above 10 degrees Celsius.

Because during charging, the battery produces a small amount of oxygen, and when there is too much gas accumulation in the sealed container, the pressure increases and danger occurs.

The battery is discharged in a normal float charging state, but the discharge time does not meet the requirements. The battery voltage has dropped to its set value, and the discharge is in a terminated state. The reason is:

(1) The discharge current of the battery exceeds the rated current, resulting in insufficient discharge time, while the actual capacity reaches;

(2) Insufficient actual float charging voltage during float charging can cause long-term undercharging of the battery, insufficient battery capacity, and may lead to battery sulfation;

(3) Loose connection strips between batteries result in high contact resistance, causing a large voltage drop during discharge and a rapid voltage drop across the entire battery pack (the opposite is true during charging, where the voltage of this battery also rises rapidly);

(4) When discharging, the ambient temperature is too low, and as the temperature decreases, the battery discharge capacity also decreases.

A primary battery, also known as a primary battery, cannot be restored for reuse by charging once its active material is depleted. A primary battery in which the electrolyte does not flow is called a "dry battery". Primary batteries are the most common civilian batteries, such as ordinary zinc manganese batteries, alkaline zinc manganese batteries, zinc silver batteries, etc.
Secondary batteries, also known as rechargeable batteries, can be reused multiple times through charging. Common types of batteries include lead-acid batteries, nickel cadmium batteries, nickel hydrogen batteries, lithium-ion batteries, etc. Due to the large proportion of lead-acid batteries, they are usually classified as a separate category, while others are small secondary batteries, including nickel cadmium batteries, nickel hydrogen batteries, and lithium-ion batteries.

A single battery can only be discharged once, while a secondary battery can be repeatedly charged and discharged for cyclic use. Rechargeable batteries undergo reversible changes in electrode volume and structure during discharge, so these changes must be adjusted during design. However, the internal structure of a primary battery is much simpler because it does not require adjustment of these reversible changes. The mass to capacity and volume to capacity of a primary battery are both larger than those of a typical rechargeable battery, but the internal resistance is much larger than that of a secondary battery due to its lower load capacity. Additionally, the self discharge of a primary battery is much smaller than that of a secondary battery.

The current reserve of nickel hydrogen batteries is 30% higher than that of nickel cadmium batteries, they are lighter, have a longer lifespan, and are environmentally friendly. The disadvantage of nickel hydrogen batteries is that they are more expensive than nickel cadmium batteries.