Overview
The LiitoKala Lii-25R is a high-drain 18650 lithium-ion rechargeable battery designed for demanding applications. With a nominal capacity of 2500mAh and a 30A continuous discharge rate, it provides reliable power delivery and long service life across a wide temperature range.
Main Features
- High-drain output up to 30A continuous discharge
- Stable 3.7V nominal voltage for consistent performance
- Long cycle life of up to 1000 recharge cycles
- Built-in explosion-proof valve for enhanced safety
- Low internal resistance ≤20mΩ ensures high efficiency
- Compatible with most LiitoKala smart chargers
- Suitable for high-load devices such as tools and RC models
Technical Specifications
| Parameter | Value |
|---|---|
| Brand | LiitoKala |
| Model | Lii-25R (INR18650-25R M) |
| Type | Li-ion 18650 |
| Nominal Capacity | 2500mAh (2450–2650mAh) |
| Nominal Voltage | 3.7V |
| Charging Voltage | 4.2V |
| Working Voltage Range | 2.75–4.2V |
| Continuous Discharge Current | Max 30A |
| Continuous Charge Current | Max 4A |
| Internal Resistance | ≤20mΩ |
| Recharge Cycles | Up to 1000 |
| Operating Temperature | -20°C to 80°C |
| Storage Temperature | Room temperature |
| Size | 65.5mm x 18.5mm |
| Weight | 46g ±1g |
| Material | Lithium |
Applications
Primary Uses:
The LiitoKala Lii-25R powers flashlights, vape mods, RC models, and high-drain power tools, providing strong output and stable voltage under heavy load.
Extended Benefits:
Ideal for power banks, solar systems, UPS backup units, and outdoor lighting, the cell maintains efficiency even under variable temperature conditions.
Compatibility / Upgrade:
Fully compatible with LiitoKala smart chargers and BMS protection modules, it serves as an upgrade option for 18650-based devices or custom battery packs.
FAQ
Can I use this battery in flashlights or vape mods?
Yes, the Lii-25R supports high-drain use and performs reliably in flashlights, vape mods, and similar 18650-powered devices.
Is this a protected or unprotected cell?
The Lii-25R is an unprotected high-drain cell, recommended for devices that include built-in protection circuits.
What is the maximum continuous discharge current?
It supports up to 30A continuous discharge, suitable for high-load electronic and mechanical tools.
How many times can it be recharged?
The cell maintains performance for up to 1000 full recharge cycles under proper use.
Does low temperature affect performance?
Yes, output may decrease in cold environments but will return to normal once warmed, which is typical for Li-ion cells.
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