Overview
The LiitoKala Lii-22A 18650 2200mAh is a dependable Li-ion rechargeable battery built for stable 3.7V operation and high safety. With a flat-top design and internal resistance below 60mΩ, it provides efficient energy delivery and over 1000 charge cycles, making it suitable for portable and consumer electronics.
Main Features
- Nominal voltage: 3.7V, charge voltage 4.2V, discharge cutoff 2.5V
- 2200mAh capacity for consistent runtime in compact devices
- Low internal resistance (<60mΩ) for efficient power output
- Supports up to 1000 charge cycles with minimal degradation
- Integrated explosion-proof safety valve for added protection
- Wide operating range and thermal stability
- Ideal for small electronics and portable tools
Technical Specifications
| Parameter | Value |
|---|---|
| Brand | LiitoKala |
| Model | Lii-22A |
| Type | Li-ion 18650 (Flat Top) |
| Capacity | 2200mAh |
| Nominal Voltage | 3.7V |
| Full Charge Voltage | 4.2V |
| Discharge Cut-off Voltage | 2.5V |
| Internal Resistance | <60mΩ |
| Recharge Cycles | Up to 1000 |
| Standard Charge Current | 0.5C |
| Maximum Discharge Current | 4A (typical) |
| Size | 18.3 × 65.0 mm |
| Weight | Approx. 45g |
| Safety Features | Explosion-proof valve, overheat protection |
Applications
Primary Uses
Designed for Bluetooth speakers, POS machines, dash cameras, and portable massagers, delivering stable and efficient power for everyday electronics.
Extended Benefits
Suitable for beauty instruments, flashlights, DIY battery packs, and RC devices, where consistent voltage and safe Li-ion chemistry are required.
Compatibility / Upgrade
Compatible with LiitoKala smart chargers and protection circuits, ideal for replacing or upgrading 18650 Li-ion cells in compact systems.
Product FAQ
Is the LiitoKala Lii-22A protected or unprotected?
The Lii-22A is an unprotected flat-top cell, suitable for use in devices with built-in battery management systems (BMS).
Can this battery be used in flashlights or cameras?
Yes, it is compatible with flashlights, dash cameras, and similar 18650-powered devices.
How should the battery be charged for best performance?
Recharge when the power drops to 10–20% capacity. Avoid full depletion to maintain long-term battery health.
Does cold weather affect battery performance?
Yes, performance may temporarily decrease in low temperatures but returns to normal once warmed to room temperature.
Which charger is recommended for this battery?
Use a LiitoKala smart charger or other dedicated Li-ion charger with protection and a 4.2V cut-off function.
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