Overview
The LiitoKala Lii-50E-N 21700 5000 mAh is a nickel-tab version of LiitoKala’s high-capacity 21700 cell, purpose-built for battery-pack manufacturers and DIY builders. With low ≤20 mΩ internal resistance, it offers efficient energy delivery, long runtime, and stable output. The pre-welded nickel strips simplify parallel and series pack connections for high-current applications.
Main Features
- 5000 mAh nominal capacity, 3.7 V nominal voltage
- Nickel tabs pre-welded for direct pack integration
- ≤20 mΩ internal resistance for efficient power output
- Up to 1000 recharge cycles under proper use
- Same chemistry as standard Lii-50E with added assembly convenience
- Flat-top + Nickel configuration ideal for industrial and DIY packs
- Genuine LiitoKala cell with quality testing and safety assurance
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand Name | LiitoKala |
| Model | Lii-50E-N (Nickel) |
| Type | Li-ion 21700 Rechargeable Battery |
| Nominal Capacity | 5000 mAh (4800 – 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 |
| Weight | 70 g ± 1 g |
| Size | Ø 21.5 mm × 70.5 mm |
| Top Type | Flat Top with Nickel Tabs |
| Customization Options | Nickel / Pointed / PCB |
| Package Details | 256 pcs / box (22 × 22 × 18 cm) |
Applications
The Lii-50E-N is designed for battery-pack assembly in e-bikes, scooters, power tools, solar storage systems, and RC projects.
Its nickel-tab design enables efficient integration into 3S–20S configurations, reducing welding time and ensuring reliable electrical contact.
Favored by DIY builders and OEM manufacturers, this cell combines high capacity, low resistance, and long service life, making it ideal for both commercial and industrial use.
Product FAQ
What’s the difference between Lii-50E and Lii-50E-N?
The Lii-50E-N comes with factory-welded nickel tabs for quick pack building; otherwise, performance is identical.
Can I use Lii-50E-N in my device directly?
It’s designed for pack integration. Ensure clearance for nickel tabs if used individually.
Is the cell protected?
No, this version is unprotected; PCB-protected options are available on request.
What charger should I use?
Use a LiitoKala smart charger, e.g., Lii-C6 Smart Charger.
Can I use it for series or parallel packs?
Yes — the nickel tabs make pack assembly easier and more reliable.
Is this cell suitable for solar energy storage?
Absolutely. Its high capacity and low resistance ensure stable output in solar and backup systems.
Do you offer bulk and OEM orders?
Yes — see our Bulk Batteries page for retailer and OEM options.
Reviews
There are no reviews yet.