LiitoKala Lii-M4S 5V EU AU UK US Plug Battery Charger For 3.7V 18650 26650 21700 14500 18350 17500 1.2V AA AAA A C

LiitoKala Lii-M4S Smart Battery ChargerProduct OverviewThe LiitoKala Lii-M4S is an upgraded intelligent battery charger, featuring touch control, HD LCD display, and multiple functional modes. It integrates charging, discharging, and battery storage functions, with 4 independent channels to meet the needs of daily use and battery maintenance. Compact and portable, it is an ideal helper for home, office, and outdoor use.Technical SpecificationsParameterDetailsInputDC Type-C 5V/2A (minimum)Charging Output (Li-ion)4.20V, optional currents: 300mA×4 / 500mA×4 / 700mA×4 / 1000mA×2Charging Output (Ni-MH/Cd)1.48V, 500mA×4Discharge OutputOptional currents: 250mA×4 / 500mA×4USB Power Bank Output5V/1000mA (only available when channel 4 is connected to a high-voltage lithium battery)LCD DisplayHD screen, displays all data on one screen: voltage, current, power percentage, charging/discharging time, battery capacityStandby Current≤15mAhSize146mm × 100mm × 33mmWeight206gCompatible BatteriesLi-ion (3.7V): 18650, 21700, 26650, 18490, 18350, 17670, 17500, 16340, 14500, 10440; Ni-MH/Cd: AA, AAA, A, SCCharge DetectionCC/CV/-△V/-△0/Max VNew Functions & Upgrades1. Touch ButtonsPhysical buttons are canceled, and touch buttons are adopted for more convenient and responsive operation. A beep sound will be emitted when the button is touched, prompting successful operation. There are 4 touch points in total: mode selection (MODE), channel 1-2 query, channel 3-4 query, and current selection (CURRENT), which also have the function of turning on the LCD backlight.2. HD LCD ScreenEquipped with an HD LCD screen, featuring high definition and 175-degree wide viewing angle. All key data (voltage, current, power percentage, time, capacity) is displayed on a single screen, making it clear and easy to monitor the working status of the charger and batteries at a glance.3. Added Functional Modes (Discharge & Storage)Storage Mode: A functional mode designed for safer battery storage. When the battery is not used for a long time (e.g., more than 1 week), this mode can be used to adjust the battery voltage to 3.8V (either charge or discharge to 3.8V), returning the battery to the factory voltage range (3.65-3.8V). This effectively extends battery life and ensures safer storage.Discharge Mode: Simply discharges the battery until it is empty, then automatically stops. This mode helps detect the actual discharge capacity of the battery and can also be used to activate over-discharged batteries appropriately.Key Advantages4 independent charging channels, supporting mixed charging of different types and specifications of batteries without mutual interference.Multiple adjustable charging and discharging currents, adapting to different battery capacities and usage needs.USB power bank function, which can be used as an emergency power supply for small digital devices (subject to usage conditions).Multiple safety protection functions, including overcharge protection, over-discharge protection, short-circuit protection, 0V battery activation, reverse battery detection protection, and intelligent identification of defective batteries.Compact and lightweight design, easy to carry and store, suitable for home, travel, and outdoor scenarios.Package Includes1 × LiitoKala Lii-M4S Battery Charger1 × USB Cable1 × User Manual (Chinese, English, Russian)Safety NotesThis charger is only suitable for cylindrical Li-ion and Ni-MH/Cd batteries; do not charge LiFePO4 batteries or disposable batteries (e.g., alkaline batteries) to avoid damage or danger.Use a standard DC Type-C 5V/2A adapter for power supply; do not use non-standard adapters.The charger may heat up during charging/discharging; avoid prolonged direct contact to prevent burns.When not in use, unplug the power supply first, then remove the battery. Store the charger and batteries in a dry, cool place, away from high temperature, humidity, and direct sunlight.The data displayed by the charger is for reference only; for accurate measurement, please use professional instruments.LiitoKala Lii-M4S – Smart Charging, Comprehensive Protection, Easy to Use!