Battery Usage Instructions: 1. Normally, new batteries are not charged and need to be recharged before using a new battery. After starting to use a new battery or stopping the use of a battery, a battery can only achieve its best effect after requiring 3 to 4 cycles of cyclic charging and discharging. 2. When a new battery is charged for the first time (10 ~ 15 minutes after charging), an indicator light is installed to show that the battery is not charged. Simply remove the battery from the device and recharge the battery. 3. If the battery has not been used for more than one month, remove the battery and place it in a dry and cool place. It is normal for the battery temperature to rise during charging and discharging. A charged battery will naturally discharge after a certain period of time, so it must be recharged even if it is to be used after a certain period of time. 4, When using the laptop for the first time, please discharge the battery to about 5% and fill it to the brim. We offer a quality assurance service. If the product is defective, please contact us if you have any requests, we will respond with sincerity and responsibility.