Battery FAQ 11-16

11. What is the impact of temperature on battery performance?

Among all environmental factors, temperature has the greatest impact on battery performance. The electrochemical reactions at the electrode and electrolyte interface are closely related to ambient temperature, and the contact area between the electrode and electrolyte is the heart of the battery. If the temperature drops, the reaction rate at the electrodes will also decrease. Assuming the battery voltage remains constant, a reduction in discharge current will lead to a decrease in the battery's output power. Conversely, an increase in temperature will raise the output power. Temperature also affects the transport speed of the electrolyte; a decrease in temperature slows down the transport, which can affect the battery's charging and discharging performance. However, if the temperature is too high, the chemical equilibrium within the battery can be disrupted, leading to side effects.

12.What are the reasons for a decrease in battery life?

The battery charger or charging circuit does not match the battery model.

Overcharging and over-discharging the battery.

The battery model is not compatible with the appliance.

13.Why do battery packs exhibit zero voltage and low voltage conditions?

The presence of a single zero-voltage cell within the battery pack.

Short circuits, open circuits, and improper connections at the plug.

Detachment, cold soldering, or poor soldering of the battery and leads.

Incorrect internal connections within the battery, poor soldering or detachment between the battery and connecting tabs.

Errors or damage in the electronic components within the battery pack.

14.What causes zero voltage and low voltage in batteries?

External short circuits, overcharging, or over-discharging of the battery.

Continuous high-current overcharging of the battery.

Internal short circuits or micro-short circuits within the battery.

15.What are the reasons for a charging battery or battery pack not being able to charge?

Zero voltage in the battery pack or zero voltage in a single cell within the battery pack.

Improper internal connections within the battery pack.

Abnormalities in the internal components or protection board of the battery pack.

The battery is not chargeable.

External factors, such as excessively high or low temperatures, leading to low charging efficiency.

16.Can batteries of different capacities be combined?

Using batteries of different capacities or mixing new and old batteries can result in zero voltage and leakage. This happens because during charging, the capacity difference causes some batteries to overcharge while others do not charge fully. When discharging, the high-capacity battery does not discharge completely, and the low-capacity battery is over-discharged. This vicious cycle severely damages the batteries.

Editd by Richard