Laptop Battery AVACOM for Acer Aspire 3810T, 4810T, 5810T Series Li-ion 11.1V 7800mAh/87Wh:AVACOM Expansion Batteries give you much energy to your notebook. Made of high-quality components for great performance.OffExpansion battery for laptopsDo you want to be independent of a power source for longer than the standard battery allows?AVACOM offers many expansion battery models for various laptops, which contain a higher number of cells than the original batteries. The battery is also physically larger - it either extends behind or lifts the rear of the laptop, creating a more ergonomically convenient keyboard pitch.OffMade of high-quality componentsThe battery features sophisticated electronics with double safety protection, which controls the charging of individual cell strings and also protects them from overcharging and undercharging. When using a battery with high-capacity cells, the laptop's battery life will increase significantly, so you no longer have to take your power adapter with you to longer meetings or appointments.OffOffOffHow to keep your battery in good conditionThe battery is partially charged at the factory, yet its capacity and performance are still below 100%. Therefore, for optimal battery formatting, it is recommended to go through a full charge and full discharge cycle at least 3 times at the beginning. Battery capacity is reduced by permanent connection to the power supply, so we recommend that you disconnect it from time to time. If the battery is not in use, store it in a dry place, and check and recharge it in about six months.OffWhat causes damage to the batteryOne of the most common causes of battery degradation is when you discharge it completely and then leave it unused for a long time. Do not expose the battery to temperatures above 60°C, and if the battery is exposed to temperatures below 5°C, charge it only after reaching room temperature. Only use the battery in the devices for which it is intended. Also be careful that the battery is not subjected to a short circuit or higher discharge currents. Protect your battery from mechanical damage, chemical agents, and moisture.OffOffParameters and Specifications:Intended for:Acer Aspire 3810T, 4810T, 5810T seriesReplacement for the following batteries:AK.006BT.027, AS09D31, AS09D34, AS09D36, AS09D56, AS09D70, AS09D71, AS09F34, BT.00603.079, BT.00603.080, BT.00603.082, BT.00603.091, BT.00603.092, BT.00604.039, BT.00605.038, BT.00605.054, BT.00607.078, BT.00607.079, BT.00607.082, BT.00607.089, BT.00607.090, BT.00607.110, LC.BTP00.052 Type:Li-ionCapacity:7800mAh87WhNumber of cells:9