# 5.2 Smart Battery Functions Model: lite-640t · Manual v1.0.2 Canonical: https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/5-2-smart-battery-functions Source: https://drive.google.com/file/d/1yQTDKasKxbvfVdANOx9bmlPYml-2dkCE/view Updated: 2026-10-17 EVO Lite 640T Enterprise · SE V2 controller The smart battery has the following functions: [PDF page 89, block 12](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/5-2-smart-battery-functions#p89-b12) ## Battery Level Display [PDF page 89, block 13](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/5-2-smart-battery-functions#p89-b13) The smart battery has a built-in battery level indicator, which shows the current battery level of the smart battery. [PDF page 89, block 14](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/5-2-smart-battery-functions#p89-b14) ## Communication [PDF page 90, block 2](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/5-2-smart-battery-functions#p90-b2) The aircraft can obtain real-time battery information, such as voltage, current, battery level, and battery temperature, through the communication interface on the smart battery. [PDF page 90, block 3](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/5-2-smart-battery-functions#p90-b3) ## Power Saving Mode [PDF page 90, block 4](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/5-2-smart-battery-functions#p90-b4) The smart battery will automatically shut down after 30 minutes of inactivity to reduce power consumption. [PDF page 90, block 5](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/5-2-smart-battery-functions#p90-b5) ## Dust and water resistance [PDF page 90, block 6](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/5-2-smart-battery-functions#p90-b6) After correctly installing the smart battery to the aircraft, the battery complies with IP43 protection level. [PDF page 90, block 7](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/5-2-smart-battery-functions#p90-b7) ## Ultra-low Power Mode [PDF page 90, block 8](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/5-2-smart-battery-functions#p90-b8) When the smart battery power is below 8%, the battery will enter the ultra-low power mode to reduce self-consumption. When entering ultra-low power mode, it needs to be activated by a charger before it can continue to use normally. [PDF page 90, block 9](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/5-2-smart-battery-functions#p90-b9) ## Self-discharge Protection [PDF page 90, block 10](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/5-2-smart-battery-functions#p90-b10) If the smart battery is stored in a high-temperature environment or not used for 6 days with a high battery level, the self-discharge protection will be activated. The smart battery will automatically discharge to a safe battery level and the discharge process takes 2-3 days. [PDF page 90, block 11](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/5-2-smart-battery-functions#p90-b11) ## Tips [PDF page 90, block 12](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/5-2-smart-battery-functions#p90-b12) Although the battery has no indication of a self-discharge cycle, you may notice that the battery is slightly warm, which is normal. [PDF page 90, block 13](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/5-2-smart-battery-functions#p90-b13) ## Sleep Mode Protection [PDF page 90, block 14](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/5-2-smart-battery-functions#p90-b14) If the smart battery has a low battery level, it will automatically enter sleep mode to prevent over-discharge. In this mode, the smart battery does not respond when the power button is pressed. To wake up the battery, you can connect it to a battery charger. [PDF page 90, block 15](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/5-2-smart-battery-functions#p90-b15) ## Charge Temperature Protection [PDF page 90, block 16](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/5-2-smart-battery-functions#p90-b16) The smart battery will stop charging when its temperature is lower than 5°C (41℉) or higher than 45°C (113℉) during charging, as charging the battery under such temperatures will damage the battery. [PDF page 90, block 17](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/5-2-smart-battery-functions#p90-b17) ## Overcurrent Protection [PDF page 90, block 18](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/5-2-smart-battery-functions#p90-b18) The smart battery will stop charging when the charging current is too large, as charging the battery with a high current can severely damage the battery. [PDF page 90, block 19](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/5-2-smart-battery-functions#p90-b19) ## Overcharge Protection [PDF page 90, block 20](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/5-2-smart-battery-functions#p90-b20) Charging will stop automatically when the smart battery is fully charged, as overcharging can severely damage the battery. [PDF page 90, block 21](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/5-2-smart-battery-functions#p90-b21) ## Balance Protection [PDF page 90, block 22](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/5-2-smart-battery-functions#p90-b22) The voltage of each battery cell in the smart battery is automatically kept balanced to protect the battery and maximize the performance of the battery. [PDF page 90, block 23](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/5-2-smart-battery-functions#p90-b23) ## Short Circuit Protection [PDF page 90, block 24](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/5-2-smart-battery-functions#p90-b24) Once a short circuit is detected, the power supply of the smart battery will be cut off to protect the battery. [PDF page 90, block 25](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/5-2-smart-battery-functions#p90-b25) ## Warning [PDF page 91, block 2](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/5-2-smart-battery-functions#p91-b2) Before using the smart battery, please carefully read and strictly follow the requirements in this Manual, “Battery Safety Operation Guidelines”, and “Disclaimer and Safety Guidelines”, and those on the battery's surface sticker. The user shall undertake all consequences if he/she fails to follow the usage requirements. [PDF page 91, block 3](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/5-2-smart-battery-functions#p91-b3)