SPECIFICATIONS

Brand Name: liitokala

Certification: RoHs,CE,FCC

Choice: yes

Compatible Devices: Battery

Data Transmission: Other

Display screen: Yes

High-concerned chemical: none

Intelligent Charge: Yes

Model Number: Lii-500

Origin: Mainland China

Output Power: ≤37.5

Package: Yes

Power Source: DC

Quick charge: Yes

Type: Battery charger,Universal Charger,Device with USB Charger

Use: Standard Battery

Voltage range: No voltage

LiitoKala Lii-500 / Lii-500 noother Smart Charger – Same Functions, Different Package Options

⚠️ General Important Notes (Applicable to Both Models)

• This charger is only for 1.2V Ni‑MH batteries (AA, AAA, etc.) and 3.7V cylindrical Li‑ion batteries (18650, 26650, 14500, etc.).

• DO NOT charge: 1.5V primary lithium batteries, 3.2V LiFePO₄ batteries, or 3.8V IMR high‑voltage Li‑ion batteries – doing so may damage the battery or cause safety hazards.

• All data shown on the display (voltage, current, capacity, time, internal resistance) are for reference only and are not professional measurements. For accurate values, please use dedicated testing instruments. The internal resistance value is displayed after charging is complete and is a reference only – not an exact measurement; for precise internal resistance, please use a professional internal resistance tester.

• The charger may become warm during operation – this is normal. Avoid burns. Unplug the power and remove batteries after use.

• For indoor use only, with a proper power adapter that meets the specifications (see package details for each model).

✅ Common Core Features (Both Models)

• 4 independent channels: charge different sizes and types of batteries simultaneously – Li‑ion and Ni‑MH can be mixed.

• Automatic battery type recognition: upon insertion, the charger detects the voltage and displays 3.7V (Li‑ion) or 1.2V (Ni‑MH), then defaults to CHARGE mode.

• Default CHARGE mode: no operation needed – simply insert a battery and it starts charging (default current is 500mA, adjustable).

• Multiple charging current options: 300mA / 500mA / 700mA / 1000mA (each of the 4 channels can be set independently).

• Two capacity test modes:

  • FAST TEST (quick test): discharges first, then charges fully, recording the charge capacity.

  • NOR TEST (normal test): charges fully first, then discharges, then recharges fully, recording the discharge capacity (more comprehensive).

• Automatic discharge current matching: the discharge current is automatically determined by the selected charge current (250mA if you choose 300/500mA charge, 500mA if you choose 700/1000mA charge).

• Internal resistance reference display: shows an internal resistance reference value after charging is completed (reference only, not precise).

• Multiple safety protections: over‑charge, over‑discharge, short‑circuit, temperature protection, reverse‑polarity protection (shows “Null”), 0V battery activation, automatic rejection of non‑rechargeable batteries in the 1.65V–2.2V range, smart cut‑off (–ΔV/0ΔV).

• USB 5V output: powered only by Li‑ion batteries (works without external power; Ni‑MH batteries cannot supply USB power), provides 5V/1000mA.

• Large LCD display: can cycle through voltage, current, capacity, time, and internal resistance (mR) readings.

🔍 The Only Difference Between the Two Models – Package Contents

Note: The two models are completely identical in charging performance, operation, display content, and protection features. The only difference is whether the power adapter is included.

📋 Model Details

Lii‑500 (Standard Edition)

• Package includes charger unit, bilingual manual, and DC 12V/2.0A adapter.

• Ready to use out of the box – no extra power supply needed.

• Suitable for first‑time buyers or users without a spare adapter.

Lii‑500 noother (No‑Adapter Edition)

• Package includes charger unit and bilingual manual, but NO power adapter.

• You will need to supply your own DC 12V/2.0A adapter with centre‑positive polarity and a 5.5×2.1mm barrel plug.

• Ideal for users who already have a suitable adapter or prefer to select a high‑quality power supply themselves – better cost‑effectiveness.

🔧 Operation Method (Physical Buttons)

• The charger has 6 physical buttons: MODE, CURREN, and channel select keys (1/2/3/4).

• Press and hold MODE for 3 seconds to switch between modes (CHARGE / FAST TEST / NOR TEST).

• Press CURREN within 8 seconds to adjust charging current (300/500/700/1000mA).

• Press 1/2/3/4 to view voltage, current, capacity, time, and internal resistance for the corresponding channel.

📊 Capacity Testing & Internal Resistance Reference (Important Notes)

• Capacity testing: FAST TEST is suitable for quick assessment, while NOR TEST provides a more complete charge/discharge capacity profile – both help you evaluate battery health.

• Internal resistance display: After charging is complete, the screen shows a reference internal resistance value (in mR). Please note that this value is affected by contact resistance, temperature, and other factors – it is for reference only and is not absolutely accurate. For precise internal resistance, use a professional internal resistance tester.

• All displayed data (including capacity and internal resistance) are not intended as professional verification. Actual battery performance should be assessed with professional instruments.

📦 Package Contents Summary

• Lii‑500 (Standard Edition): Charger unit ×1, bilingual manual ×1, DC 12V/2.0A adapter ×1

• Lii‑500 noother (No‑Adapter Edition): Charger unit ×1, bilingual manual ×1, adapter ×0 (must supply your own)

🔧 Technical Specifications (Same for Both)

• Input power: DC 12V / 2.0A (noother version requires user‑supplied adapter)

• Li‑ion charge current: 300mA / 500mA / 700mA / 1000mA (independent per channel)

• Ni‑MH charge current: 300mA / 500mA / 700mA / 1000mA (independent per channel)

• Discharge current: automatically matched (250mA or 500mA, depending on charge current)

• USB output: 5V / 1000mA (powered only by Li‑ion batteries)

• Compatible batteries: 18650, 26650, 14500, AA, AAA, etc. (3.7V Li‑ion & 1.2V Ni‑MH)

• Dimensions: 162 × 96 × 36 mm

✅ Applications

• Charging and capacity testing for batteries used in flashlights, power tools, instruments, digital cameras, etc.

• Battery sorting, ageing assessment, and internal resistance reference (helps identify degraded cells)

• Home and travel use – four independent channels allow simultaneous Li‑ion and Ni‑MH charging

📢 Buying Guide

• If you already have a 12V/2A adapter or prefer to buy a higher‑quality power supply separately, choose the Lii‑500 noother for better value.

• If you want a ready‑to‑use solution without the need to source an adapter, choose the Lii‑500 Standard Edition.

Final reminder: Capacity and internal resistance readings on both models are for reference only. For accurate measurements, use professional instruments. Always charge batteries according to their nominal voltage and never use incompatible types.

LiitoKala Lii-500 Series – all‑in‑one charging, testing, and internal resistance reference, making battery management easier.