Most users are convinced that a laptop battery degrades simply with the passage of years, just like any other component of technology. In reality, the chemical processes inside lithium-ion cells are much more sensitive not to the calendar, but to how exactly a person charges and uses the device on a daily basis. Two identical laptops purchased on the same day can have completely different battery life after just a year, and the difference will be precisely in the owner's habits. If the capacity has already critically dropped and compensating for the losses is impossible, it is worth considering a laptop battery selected for a specific model of the device here https://www.aks.ua/uk/catalog/akkumulyator-dlya-noutbuka/.

The main enemy of the lithium-ion cell is not its use, but remaining in extreme charge states for extended periods. Keeping a laptop constantly charged at 100% is just as harmful as regularly discharging it to zero. In addition, degradation is influenced by:

Each of these factors seems insignificant on its own, but in combination, they can reduce the battery's lifespan by half compared to the manufacturer's stated service life.

Manufacturers of lithium-ion cells have long established an empirical rule: the least stress on the chemical structure of the battery occurs in the charge range from 20% to 80%. That is why some laptop manufacturers incorporate a maximum charge limitation feature into their proprietary software. If such an option is available, it should be activated for devices that mostly operate from the mains at the office or home. For a laptop that regularly travels without a socket nearby, a full charge before departure is justified, but it should not be kept plugged in after reaching 100%.

Heat destroys lithium-ion cells faster than any other factor. Operating a laptop at temperatures above 35 degrees for extended periods accelerates the chemical aging of the electrodes even without active use of the charge. Therefore, it is advisable to avoid:

Regularly cleaning the ventilation openings from dust also significantly reduces the thermal load on the entire case, including the battery compartment.

If the laptop starts discharging in one to two hours instead of the stated six to eight, and the battery status indicator in the system shows a value below 50%, further savings in habits are unlikely to help restore the situation. In this case, a logical solution is to replace the power element with a new one specifically selected for the particular model and series of the laptop. Proper selection based on voltage, capacity, and connector specifications allows restoring the device's original autonomy without the need to purchase new equipment.