Overview
The LiitoKala Lii-18A is a 18500 Li-ion rechargeable battery rated at 3.7V 1500mAh. Engineered for compact, high-drain devices, it delivers strong, stable power output with excellent cycle life and discharge reliability. Suitable for both consumer and industrial applications.
Main Features
- 3.7V 1500mAh high-capacity rechargeable cell
- Flat top unprotected design for maximum compatibility with flashlight and vape housings
- Supports up to 2C (3000mA) discharge for high-drain performance
- ≥500 recharge cycles for extended reusability and cost efficiency
- Built from high-quality Li-ion ICR materials ensuring safety and stability
- Consistent discharge with minimal voltage drop during heavy use
- Resistant to leakage, deformation, and overheat under normal operating conditions
Technical Specifications
| Parameter | Value |
|---|---|
| Brand | LiitoKala |
| Model | Lii-18A |
| Type | ICR18500 Li-ion |
| Rated Voltage | 3.7V |
| Capacity | 1500mAh |
| Storage Voltage | 3.7–3.9V |
| Charge Cut-off Voltage | 4.2V |
| Discharge Cut-off Voltage | 3.0V |
| Max Charge Current | 1500mA (1C) |
| Max Discharge Current | 3000mA (2C) |
| Recharge Cycles | ≥500 |
| Size | 18 × 50 ±1mm |
| Protected | No (Unprotected) |
| Battery Top | Flat top |
| Material | Lithium-ion (ICR) |
| Weight | Approx. 28g |
| Operating Temperature | -20°C to +60°C |
Applications
Primary Uses:
Designed for LED flashlights, headlamps, torches, and vape mods, the Lii-18A offers stable voltage and sufficient current to support devices requiring reliable 3.7V power.
Extended Benefits:
Perfect for mechanical mods, headlights, and compact e-cigarettes, delivering consistent discharge and long runtime with minimal heat generation.
Compatibility / Upgrade:
Works seamlessly with LiitoKala smart chargers (Lii-100, Lii-202, Lii-402), and can replace other ICR18500 Li-ion cells in compatible tools and lighting devices.
Product FAQ
Is the Lii-18A protected or unprotected?
It is an unprotected flat-top cell, ideal for devices with built-in protection circuits.
What is the maximum discharge current?
The Lii-18A supports up to 3000mA (2C) continuous discharge.
Can it replace a 18650 battery?
No, the 18500 cell is shorter than 18650 and should be used only in devices specifically designed for 18500 batteries.
What charger is recommended?
Use LiitoKala smart chargers compatible with 3.7V Li-ion cells for optimal charging safety and performance.
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