Laptop batteries are extremely sensitive to temperature differences. This is why there are some specifics for charging them, depending on whether they are exposed to high or low temperatures.
Batteries can be discharged over wide temperature ranges (theoretically from -20 °C to 60 °C), but as far as a suitable charging temperature is concerned, the range is between 10 °C and 30 °C.
How do we charge our battery in cold temperatures?
When it comes to lithium-ion batteries (which most laptops operate with), it’s best to charge them at a temperature between 5 °C and 45 °C. Extremely low temperatures slow down the movement of electrons in the battery, which increases the charging time required. This is what affects the efficiency of the battery afterwards (in other words, it starts to last less).
Manufacturers are looking for solutions to this problem, as there are devices that need to be charged and operate under less favorable conditions. For the moment, special batteries have been developed whose cells allow charging at freezing temperatures. However, they also require special chargers that maintain a lower charging voltage. This means that the battery can reach a maximum charge of up to 80% in sub-zero temperatures, and the charging time increases to 12 hours. See more : Trolling Motor Battery
How do we charge our battery in high temperatures?
Charging lithium-ion batteries at higher temperatures produces gases that can be released into the cell membrane. In other words, it is these gases that cause the swelling in the battery.
With frequent charging at temperatures higher than room temperature, a loss in capacity may occur.
Some chargers have protections that do not charge the battery if the outside temperature exceeds 50 °C. This avoids the possibility of problems during charging and protects the battery.
