DFRobot
Smart Multifunctional Charger
The LiitoKala Lii-402 is a four-slot smart charger that supports Li-ion, Ni-MH, and LiFePO4 rechargeable batteries. It automatically identifies Li-ion and Ni...
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The LiitoKala Lii-402 is a four-slot smart charger that supports Li-ion, Ni-MH, and LiFePO4 rechargeable batteries. It automatically identifies Li-ion and Ni-MH battery types, with manual mode selection for LiFePO4 and 3.85 V Li-ion cells. Four LED indicators display charging progress at 25%, 50%, 75%, and 100% for each slot.
Powered via Micro-USB (5 V DC), the charger offers four selectable charging current modes and includes protection against overcharge, over-discharge, short circuit, and reverse polarity.
Key Features
- 4 Independent Charging Slots – Charge up to four batteries simultaneously
- Auto Battery Detection – Automatically identifies Li-ion and Ni-MH types
- Selectable Charging Current – 500 mA, 700 mA, 1000 mA, or 2000 mA (2000 mA available on slot 4 only)
- Multiple Battery Support – Li-ion, Ni-MH, LiFePO4, and 3.85 V Li-ion
- LED Progress Indicators – 25% / 50% / 75% / 100% per slot
- Safety Protection – Overcharge, over-discharge, short circuit, and reverse polarity detection
Specifications
- Input: Micro-USB, 5 V DC, 2 A
- Output Voltage: 1.42 V / 4.2 V ± 0.05 V / 3.65 V ± 0.05 V / 4.35 V ± 0.05 V
- Output Current: 500 / 700 / 1000 / 2000 mA (selectable)
- Compatible Sizes: 14500, 16340 (RCR123), 17500, 17670, 18350, 18490, 18650
- Dimensions: 112 × 90 × 30 mm
- Weight: 130 g
Package Contents
- 1× LiitoKala Lii-402 Smart Charger
Jargon buster
Plain-language definitions for the technical terms used above.
- DC
- DC means direct current, where electricity flows in one constant direction, as supplied by batteries, USB ports and many plug-pack power supplies. When a product specifies DC, it runs from a DC supply rather than mains AC, so you need to provide the correct voltage and polarity.
- LED
- A light-emitting diode (LED) is a small electronic component that emits light when current flows through it in the correct direction. Because it only conducts one way, its polarity matters, and a through-hole LED must be soldered the correct way around to light up.
- Ni-MH battery
- A Ni-MH battery is a rechargeable nickel-metal hydride cell, available in standard sizes such as AA and AAA and often used in place of disposable alkaline cells. Each cell supplies about 1.2 volts rather than the roughly 1.5 volts of an alkaline, so it is worth checking that a device tolerates this slightly lower voltage before relying on Ni-MH cells.
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Power & Batteries
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