Lii-CH4 & Lii-CH2 Smart USB Chargers – Pure Charging Devices with Percentage & mAh Display

⚠️ Important – Read Before Purchase

Both chargers are pure charging devices. They do NOT have any battery capacity testing, internal resistance testing, or voltage measurement functions. The LCD only shows real‑time charge percentage and charged capacity (mAh) – no other data.
We do not exaggerate features. We offer only stable and safe charging.

Common Features (for both models)

• Battery Compatibility

  • Auto‑recognition: 3.70V Li‑ion, 1.2V Ni‑MH/Ni‑Cd, and 1.5V Li‑ion (converted from 4.2V to 1.5V)

  • Manual selection (by button): 3.20V LiFePO₄ and 3.80V IMR

  • Never charge alkaline batteries

• Charging Current

  • Adjustable 0.5A / 1.0A (fixed at 0.5A for 1.5V Li‑ion)

• Safety Protections

  • Over‑charge, over‑discharge, short‑circuit, reverse‑polarity protection

  • Bad battery detection, 0V activation (trickle charge for 1.65‑2.20V)

  • Constant current / constant voltage, cut‑off at 100mA, auto‑stop

• Input Power

  • USB 5.0V / 2.0A (adapter not included, recommend ≥2A)

• Output Voltage (same for both)

  • Li‑ion: 4.20V | IMR: 4.35V | LiFePO₄: 3.65V | NiMH/NiCd: 1.48V

• Standby Current (no load) ＜50mA

• Compatible Battery Models (common)

  • 26650, 21700, 20700, 18650, 18490, 18350, 17670, 17500, 16340(RCR123), 14500, 10440

  • NiMH/Cd: AA, AAA, SC, C

Differences Between Models

Lii-CH4 (4‑slot independent control)

• Slot control: Each slot has its own button (1‑4). Long‑press the corresponding button to adjust current independently.

• Output current capacity

  • Li‑ion/IMR/LiFePO₄: 1000mA×2 or 500mA×4

  • NiMH/NiCd: 1000mA×2 or 500mA×4

• Dimensions: 144 × 99 × 35.0 mm

• Weight: 179g (without cable)

Lii-CH2 (2‑slot shared control)

• Slot control: Single MODE button. Long‑press to adjust current for both slots together.

• Output current capacity

  • Li‑ion/IMR/LiFePO₄: 1000mA×2 or 500mA×2

  • NiMH/NiCd: 1000mA×2 or 500mA×2

• Dimensions: 139 × 70 × 35.0 mm

• Weight: 112g (without cable)

Operating Instructions (both models)

• After power‑on and inserting batteries, you have 9 seconds to select battery type by pressing the button (Ni‑MH/Ni‑Cd do not need selection).

• Do not change battery type during charging.

• The charger may become warm – this is normal. Keep out of children’s reach.

• Use only indoors at room temperature. Unplug and remove batteries when not in use.

Package Contents

• CH4 package: Charger ×1 + USB cable ×1 + Manual ×1

• CH2 package: Charger ×1 + USB cable ×1 + Manual ×1

Note: This product is a pure charging device. For precise measurements, please use professional instruments.

Lii‑CH4 / CH2 – Charge straightforwardly, see clearly.