Battery 101


LiitoKala Lii-PD4 battery charger for NiMh, Li-ion, LiFePO4 and IMR

LiitoKala Lii-PD4 is a 4 slot smart battery charger designed for portability and flexibility in mind and can support multi types of cylindrical batteries. It can detect the battery type and charge the battery automatically according to your pre-selected charging current. It can charge NiCd, NiMH, Li-Ion, LiFePO4, 1.2V, 3.2V, 3.7V, 4.2V, 4.35V, C, AA, AAA batteries and also includes a 12V Car adaptor.


  • 4-slots independent charging and MCU management system. Can charge 4 cells simultaneously (not including 32700, 32650 & 26650 cells)
  • Can only charge 2 cells at a time in slot #1 and slot #4 for 32700, 32650, 26650, D and C cells
  • Built-in battery polarity auto-detection function. Cells can be inserted any direction.
  • Display turns OFF after 30 seconds and will turn ON when a battery is full.
  • Charge current is 2A in slot #4 when only this slot is used for Li-Ion/LiFePO4.
  • With 1 or 2 cells the charge current is 1A only exception is above.
  • With 3 or 4 cells the charge current is 0.5A
  • Selective 0.5A/1A/2A charging currents for Lithium batteries by long press the current button. The defaulted current is 0.5A.
  • The large LCD display shows the real-time charging status of channel number (CH), voltage, charge current, time, charge capacity and battery type Li-Fe 3.20V / Li-ion 3.70V / Li-ion 3.85V
  • When using only 2 channels, the total charge current will be no more than 1A to each channel. Using channel #4 on its own will achieve 2A charge current. Once a second cell is inserted, the charge current will be automatically lowered to 1A.
  • Automatically identify Li-Ion and Ni-MH batteries. Manual selection is required for LiFePO4 batteries and 4.35V Li-ion batteries by pressing the ‘MODE’ button once inserted into the charger.
  • Activation function for 0V battery of PCM protection.
  • Will not charge batteries if the cells have less than 0.3V.
  • Multi-safety protection functions of over-charging, over-discharge, short-circuited and can automatically identify broken/defective batteries (will not charge bad batteries).



  • Brand Name: LiitoKala
  • Model Number: Lii-PD4
  • Input Voltage: AC 110-240V 50/60Hz; DC 12V/1A
  • Output voltage:
  • DC 4.2V for Li-ion
  • DC 4.35V for IMR
  • DC 3.65V for LiFePO4
  • DC 1.48V for NiMH/NiCd
  • Output current:
  • Li-ion/IMR/LiFePO4: 2000mA * 1 (only the passage 4), 1000mA * 2, 500mA * 3, 500mA * 4
  • NiMH/Cd: 1000mA * 2, 500mA * 2, 500mA * 3, 500mA * 4
  • Rechargeable battery specifications:
  • Li-ion/IMR/LiFePO4: 32700, 32650, 26650, 20700 (un-protected only), 21700 (un-protected only), 26650, 22350, 18650, 18500, 18350, 17500, 16340 (RCR123), 14500, 10440
  • NiMH/NiCd: AA, AAA, C, D
  • Colour: Black
  • Dimension approx.: L146mm x W100mm x D36mm


Package Includes:

  • 1 x Lii-PD4 charger
  • 1 x Figure 8 cable with UK Fused plug
  • 1 x 12V Car adaptor
  • 1 x Manual

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