Overview
The LiitoKala LT33A is a 3.7V 18650 low-temperature rechargeable Li-ion battery built for dependable performance in harsh weather conditions. With a 3300mAh capacity and 3.3A discharge current, it delivers consistent power output even at -40°C, making it ideal for outdoor and industrial applications.
Main Features
- 3300mAh high capacity for extended runtime and reliable power supply
- Low internal resistance (<16mΩ) for efficient discharge and minimal heat generation
- Operates in extreme temperatures (-40°C to +60°C) without performance loss
- 3.3A discharge current suitable for stable-load devices and electronics
- Rechargeable and reusable for up to 1000 charge cycles
- Customizable options: Nickel strip, Button-top, or PCB-protected configurations
- Designed with LiitoKala safety standards, ensuring durability and stability
Technical Specifications
| Parameter | Value |
|---|---|
| Brand | LiitoKala |
| Model | LT33A |
| Type | Li-ion 18650 Rechargeable Cell |
| Rated Voltage | 3.7V |
| Capacity | 3300mAh |
| Charge Voltage | 4.2V |
| Discharge Cut-off Voltage | 2.5V |
| Internal Resistance | <16mΩ |
| Max Charge Current | 3.3A |
| Max Discharge Current | 3.3A |
| Operating Temperature (Discharge) | -40°C to +60°C |
| Operating Temperature (Charge) | 0°C to +60°C |
| Storage Temperature | 23°C |
| Rechargeable | Yes |
| Size | 18.3 × 64.8mm ±0.1mm |
| Weight | 46g ±1g |
| Protection | Optional (Nickel / Pointed / PCB) |
| Packaging | 400pcs/box (42.5 × 22 × 16cm) |
Applications
Primary Uses:
Engineered for flashlights, headlamps, power tools, and outdoor lighting, the LT33A delivers reliable discharge performance in freezing and high-temperature conditions.
Extended Benefits:
Suitable for sensors, cameras, and portable devices, ensuring stable operation in low-temperature environments where standard Li-ion cells may fail.
Compatibility / Upgrade:
Compatible with LiitoKala chargers (Lii-100, Lii-402) and all devices supporting 18650 Li-ion batteries. Optional button-top or PCB protection versions enhance compatibility with specialized electronics.
Product FAQ
How is the LT33A different from other 18650 batteries?
It is a low-temperature battery designed to operate effectively at -40°C, where standard cells lose capacity or fail.
What is the discharge current rating?
The LT33A supports up to 3.3A continuous discharge, suitable for moderate to high-drain devices.
Is it protected?
The standard LT33A is unprotected, but optional PCB versions are available for added safety.
Can it be used in cold outdoor conditions?
Yes. The LT33A maintains stable voltage and capacity even in extreme cold down to -40°C.
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