Features: 1.Software Support: Support for bqstudio; Support the official website debugging software, the same function as the official website EV2400. Support the official software, battery repair, send for DJI part of the information code. 2.Upgrade Version: Add static protection for each output. Supports IIC, SMBUS, HDQ communication. With power indicator, telecommunication indicator and USB data status indicator. 3.Function: Support battery unlocking, capacity modification, cycle count modification, no light abnormality, battery charging and discharging abnormality, modification of other power meter parameters, provide professional passwords 4.Wide Range of Applications: Can be used to read and write for BQ series battery metering chip, read, unlock, modify parameters of for DJI laptop batteries and drone batteries, and other types of development 5.Compatible: Support models for DJI Mavic Air 1, for Mavic Air 2, for Mavic Air Pro, etc. Battery capacity modification, cycle count modification. Can also repair laptop and other for bq battery, laptop battery unlock for BQ20 BQ20z series. specification:Item Type: EV2400 Battery Metering Chip Programmer Material: ABS Support Models: Including (for BQ9003, BQ30Z55, BQ40Z50, BQxxxx power meter chip). Support: for IIC, for SMBus, for HDQ Telecommunication PackageList: 1 x Battery Downloader 1 x USB Cable 1 x Jump Wire 1 x Flat Cable