ISDT K4 — High-Power AC/DC Dual-Channel Smart Charger

The ISDT K4 is a powerful and compact AC/DC dual-channel smart charger designed for serious RC enthusiasts, drone pilots and demanding hobby users. With independent dual-channel operation, strong charging performance and wide battery compatibility, the K4 is a versatile charging solution for home, workshop, racetrack and field use.

With up to 400W charging power on AC input and up to 600W x 2 charging power on DC input, the K4 delivers impressive performance in a compact housing. The independent dual-channel design allows two batteries to be charged at the same time, with separate settings for each channel. This makes it easy to charge different battery types, capacities or charging programs simultaneously.

The ISDT K4 supports a wide range of common hobby batteries, including LiFe, Li-Ion, LiPo, LiHv, Pb, NiMH and NiCd batteries. It supports lithium battery packs up to 8S, Pb batteries up to 12S and NiMH/NiCd batteries up to 16S, making it suitable for RC cars, aircraft, drones, boats, portable power applications and other battery-powered hobby equipment.

The charger offers several useful battery management functions, including balance charging, fast charging, data storage, cycle charging and discharging. After charging is completed, the K4 automatically stops the charging process, helping to support safe and efficient battery use.

The full-color LCD display with touch panel provides a clear overview of the complete charging process. Important information such as voltage, current, charging time, selected mode, battery type, internal resistance and charged capacity is shown clearly, making setup and manual operation simple and intuitive.

The ISDT K4 also supports BattAir Bluetooth functionality and mobile operation through the ISD Link app when used with compatible BattAir accessories. Firmware upgrade support helps keep the charger up to date with the latest improvements and optimized performance.

With its aluminium alloy housing and efficient cooling design, the K4 combines professional performance with practical durability. Safety functions such as abnormal voltage alarm, incorrect cell count alarm and automatic charge stop help provide a reliable charging experience for modern RC and hobby applications.

Compact, powerful and highly versatile, the ISDT K4 is an excellent smart charger for users who need strong dual-channel performance with both AC and DC input flexibility.

Key Features:

• High-power AC/DC dual-channel smart charger
• Independent dual-channel operation
• Up to 400W charging power on AC input
• Up to 600W x 2 charging power on DC input
• Parallel charging support up to 800W / 35A
• Charging current up to 20A x 2
• Supports LiFe, Li-Ion, LiPo, LiHv, Pb, NiMH and NiCd batteries
• Compatible with lithium battery packs up to 8S
• Balance charging, fast charging, data storage, cycle charging and discharging functions
• Maximum balance current: 1.5A per cell
• Full-color LCD display with touch panel
• Clear display of voltage, current, charging time, mode, battery type, internal resistance and charged capacity
• BattAir Bluetooth support with compatible accessories
• Mobile operation via ISD Link app
• Firmware upgrade support
• Aluminium alloy housing
• Efficient cooling design for stable operation
• Abnormal voltage and incorrect cell count alarms
• Automatic charge stop when charging is completed
• Suitable for RC cars, RC aircraft, drones, boats, portable power applications and general hobby use

Technical Specifications:

Packaging Content:

• 1 x ISDT K4 Smart Charger