Overview
The LiitoKala Lii-50A 26650 5000 mAh is a high-energy Li-ion cell built for demanding applications requiring both capacity and efficiency. With ultra-low internal resistance (≤20 mΩ) and 5000 mAh of rated energy, it ensures long runtimes, strong current delivery, and exceptional reliability. Perfect for flashlights, e-bikes, and custom battery builds, this cell represents LiitoKala’s commitment to performance and consistency.
Main Features
- 5000 mAh nominal capacity for extended operation
- 3.7 V nominal voltage, 4.2 V charging limit
- Ultra-low ≤20 mΩ internal resistance for high efficiency
- Up to 1000 charge cycles under proper use
- Supports Flat Top / Nickel / Pointed / PCB-protected variants
- Designed for flashlights, e-bikes, power banks, and RC projects
- Authentic LiitoKala cell, individually tested for safety and output stability
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand Name | LiitoKala |
| Model | Lii-50A |
| Type | Li-ion 26650 rechargeable battery |
| Nominal Capacity | 5000 mAh (4900 – 5100 mAh typical) |
| Nominal Voltage | 3.7 V |
| Limited Charge Voltage | 4.2 V |
| Working Voltage Range | 2.75 – 4.2 V |
| Internal Resistance | ≤ 20 mΩ |
| Recharge Cycles | Up to 1000 times |
| Weight | 95 g ± 1 g |
| Size | Ø 26.8 mm × 65.5 mm |
| Customization Options | Nickel / Pointed / PCB |
| Package Details | 200 pcs / box (43 × 23 × 16 cm) |
Applications
The Lii-50A 26650 is ideal for high-drain devices such as flashlights, e-bikes, and power tools, offering a balance of power and runtime.
Its stable discharge and high capacity make it a top choice for RC vehicles, solar power systems, and energy storage projects.
With customizable options (Nickel tabs, PCB protection, pointed top), the cell is also popular in DIY battery pack assembly and industrial energy modules.
Product FAQ
Is the Lii-50A a protected or unprotected cell?
The standard version is unprotected; PCB-protected variants are available on request.
Can it replace an 18650 battery?
No, the 26650 is larger (26.8 mm × 65.5 mm); only use in devices designed for 26650 cells.
What charger should I use?
Use a compatible charger such as the LiitoKala Lii-C6 Smart Charger for best results.
How long does the battery last per charge?
Depends on load, but the 5000 mAh capacity provides significantly longer runtime than most 18650 cells.
Can it be used in series or parallel packs?
Yes, when matched and balanced with a proper BMS.
Is this battery safe for portable electronics?
Yes, LiitoKala cells undergo strict testing for consistency and safety.
Do you offer bulk or OEM orders?
Yes — see our Bulk Batteries page for wholesale and retailer pricing.
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