Precaution 1: Prevent overheating during charging.
If the charging temperature exceeds the specified operating temperature (35°C), the lithium-ion battery's capacity will continuously decrease, meaning the power supply time when fully charged will be shortened. This will damage the battery's quality and reduce its lifespan.
Second point to note: Prevent the charging temperature from getting too low.
If the battery is charged in a low-temperature environment (below 4°C), the battery capacity will continue to decrease, and it may even fail to charge. However, the situation is different from that in a high-temperature environment. It is not a permanent damage. When the temperature rises to a suitable level, the battery capacity will return to its previous state.
Note 3: Frequent use
Frequent use keeps electrons in a constant state of flux within the lithium-ion battery, which helps extend its lifespan. If you don't use it frequently, remember to complete a full charge cycle for the lithium-ion battery each month, i.e., perform a deep discharge and deep charge once a month.
1. Batteries are generally shipped with a half-charge. It is best to fully charge the battery before the first ride, as self-discharge will reduce the charge of the lithium-ion battery and activate the active materials within it.
2. Do not completely deplete the battery during each ride. Prolonged over-discharge can reduce battery life by up to three times. If a low battery warning appears while riding your electric vehicle, stop riding immediately.
Charging time
1. Lithium-ion batteries are always effectively charged, even if they have 50% charge before charging. This is because, unlike nickel-metal hydride batteries, which have a memory effect, lithium-ion batteries do not. However, it's important to note that lithium-ion batteries should not be over-discharged, as this will cause irreversible capacity loss. Start charging immediately when the device warns of low battery.
2. Never overcharge. Stop charging when the indicator light comes on after charging is complete. If the battery will not be used for a long time, remove it from the device and store it in a dry, cool place. Charge it once every 60-90 days to prevent irreversible capacity loss due to self-discharge caused by prolonged storage. The optimal storage condition for lithium-ion batteries is half-charge.
Recharging to compensate for self-discharge
If the battery is not used for an extended period, it should be removed from the instrument and stored in a dry, cool place. It should be charged once every 60-90 days to prevent irreversible capacity loss due to self-discharge caused by prolonged storage. The optimal storage condition for lithium-ion batteries is half-charge storage (i.e., storage at 40%-60% of the battery's nominal capacity). We know that the maximum voltage of lithium-ion batteries is 4.2V, therefore, the storage voltage is best between 3.8V and 3.9V, at which point the capacity is approximately half.
