Universal Battery Charger 18650 AA AAA Fast Charge with Overcharge & Reverse Protection

LiitoKala Lii-700 – Professional Smart Charger with Integrated Battery Diagnostics

The Lii-700 is a high-precision universal charger that combines reliable cell maintenance with professional-grade internal resistance testing. Four fully independent channels allow you to charge, discharge, test capacity, or repair Li-ion, Ni‑MH and Ni‑Cd batteries (from 18650 and 21700 to AA and AAA) simultaneously – each with its own selectable current. A clear, centrally organised LCD screen presents all essential data in real time: voltage, current, capacity, elapsed time, battery percentage and operating mode. The included 4‑core aviation‑style test probe delivers accurate ACIR readings for a fast, meaningful health assessment of every single cell. Built-in safeguards – overcharge, over-discharge, short circuit, reverse polarity protection and 0 V activation – ensure safe, worry-free operation. For those who require more than just charging, the Lii-700 offers a complete, laboratory-informed battery management solution.

⚠️ Important: This charger is designed for 1.2V Ni-MH rechargeable batteries only. 1.5V batteries (such as alkaline, lithium primary, or Ni-Zn cells) must never be charged with this device. Doing so may cause damage and pose a safety risk.

Please refer to the detailed image descriptions below for a more intuitive overview of each feature.

The LiitoKala Lii-700 smart universal charger – designed with 4 fully independent slots, real-time data monitoring and internal resistance testing. Keep a precise overview of your battery health and charging status at a single glance.

Professional-grade intelligence for all your rechargeable cells. The LiitoKala Lii-700 combines accurate internal resistance diagnostics, 4 independent channels for simultaneous multi-chemistry charging, and precision test probes for high-accuracy manual measurements. Universally compatible with Li-ion, 1.2V Ni‑MH and Ni‑Cd batteries, from 18650 to AA. (Not for 1.5V cells.)

The LiitoKala Li‑700 – professional diagnosis and precise all-in-one power management. Offering multiple operation modes (charge, discharge, test, repair, ACIR resistance testing and intelligent hybrid charging), 4 independent slots, real‑time monitoring and maximum safety. All key data is clearly displayed on the integrated LCD screen. Input: 12 V / 5 A; adjustable output voltage per channel: 1.2 V – 4.35 V. A reliable, user-friendly charging centre for demanding users.

Precision testing in practice. Equipped with a 4‑core aviation‑style test probe, the Lii‑700 delivers reliable AC internal resistance readings (example shown: 23.0 mΩ at 4.14 V). This professional diagnostic capability ensures safe, laboratory-grade battery maintenance and accurate health assessment for every cell.

The Lii‑700 Smart Universal LCD Fast Charger Kit – a complete, high-performance solution. Key features: 4 fully independent channels, professional ACIR internal resistance measurement, and broad compatibility with Li‑ion, 1.2V Ni‑MH and Ni‑Cd cells (26650, 21700, 18650, AA, AAA and more). Supports 3 A fast charging, discharge testing, battery repair and comprehensive safety protections (overcharge, over-discharge, short circuit and reverse polarity). Technical specifications: input DC 12 V / 5 A; selectable charging current up to 3000 mA; discharge current up to 1000 mA. Professional, intelligent and built for longevity.