
Nitecore NL2145 21700 4500mAh Battery - Protected Button Top
Key Features
- High-Capacity 21700 Battery: 4500mAh lithium-ion cell for extended device operation.
- Protected Button Top Configuration: Integrated PCB for enhanced operational safety.
- Consistent Energy Delivery: Rated for 5A continuous discharge.
- Durable Construction: Designed for long-term reliability and repeated use.
- Eco-Conscious Design: Rechargeable up to 500 times to reduce waste.
Overview
The Nitecore NL2145 is a protected 21700 lithium-ion battery built for professional and consumer applications where capacity, safety, and reliability are essential. With its high 4500mAh capacity and integrated protection circuitry, it delivers dependable power in a compact, device-compatible format suitable for modern high-drain electronics.
Applications / Uses
- Commercial and consumer lighting equipment
- Portable electronic devices
- Emergency and preparedness systems
- OEM and R&D applications
- Protected 21700 battery systems
SPECIFICATIONS
| Manufacturer: | Nitecore |
| Model: | NL2145 |
| Size: | 21700 |
| Positive Terminal: | Button Top |
| Nominal Capacity: | 4500mAh |
| Continuous Discharge Rating (max): | 5A |
| Nominal Voltage: | 3.6V |
| Maximum Voltage: | 4.2V |
| Protected: | Yes (PCB) |
| Rechargeable: | Yes |
| Approx. Dimensions: | 21.8mm x 75.5mm |
| Approx. Weight: | 76g |
Nitecore NL2145 21700 4500mAh Data Specification Sheet

Key Features
- High-Capacity 21700 Battery: 4500mAh lithium-ion cell for extended device operation.
- Protected Button Top Configuration: Integrated PCB for enhanced operational safety.
- Consistent Energy Delivery: Rated for 5A continuous discharge.
- Durable Construction: Designed for long-term reliability and repeated use.
- Eco-Conscious Design: Rechargeable up to 500 times to reduce waste.
Overview
The Nitecore NL2145 is a protected 21700 lithium-ion battery built for professional and consumer applications where capacity, safety, and reliability are essential. With its high 4500mAh capacity and integrated protection circuitry, it delivers dependable power in a compact, device-compatible format suitable for modern high-drain electronics.
Applications / Uses
- Commercial and consumer lighting equipment
- Portable electronic devices
- Emergency and preparedness systems
- OEM and R&D applications
- Protected 21700 battery systems
SPECIFICATIONS
| Manufacturer: | Nitecore |
| Model: | NL2145 |
| Size: | 21700 |
| Positive Terminal: | Button Top |
| Nominal Capacity: | 4500mAh |
| Continuous Discharge Rating (max): | 5A |
| Nominal Voltage: | 3.6V |
| Maximum Voltage: | 4.2V |
| Protected: | Yes (PCB) |
| Rechargeable: | Yes |
| Approx. Dimensions: | 21.8mm x 75.5mm |
| Approx. Weight: | 76g |
Nitecore NL2145 21700 4500mAh Data Specification Sheet

Original: $15.99
-70%$15.99
$4.80Description
Key Features
- High-Capacity 21700 Battery: 4500mAh lithium-ion cell for extended device operation.
- Protected Button Top Configuration: Integrated PCB for enhanced operational safety.
- Consistent Energy Delivery: Rated for 5A continuous discharge.
- Durable Construction: Designed for long-term reliability and repeated use.
- Eco-Conscious Design: Rechargeable up to 500 times to reduce waste.
Overview
The Nitecore NL2145 is a protected 21700 lithium-ion battery built for professional and consumer applications where capacity, safety, and reliability are essential. With its high 4500mAh capacity and integrated protection circuitry, it delivers dependable power in a compact, device-compatible format suitable for modern high-drain electronics.
Applications / Uses
- Commercial and consumer lighting equipment
- Portable electronic devices
- Emergency and preparedness systems
- OEM and R&D applications
- Protected 21700 battery systems
SPECIFICATIONS
| Manufacturer: | Nitecore |
| Model: | NL2145 |
| Size: | 21700 |
| Positive Terminal: | Button Top |
| Nominal Capacity: | 4500mAh |
| Continuous Discharge Rating (max): | 5A |
| Nominal Voltage: | 3.6V |
| Maximum Voltage: | 4.2V |
| Protected: | Yes (PCB) |
| Rechargeable: | Yes |
| Approx. Dimensions: | 21.8mm x 75.5mm |
| Approx. Weight: | 76g |
Nitecore NL2145 21700 4500mAh Data Specification Sheet






















