Key Features
- 3400mAh nominal capacity for extended runtime
- Protected button top design with integrated PCB
- 6A max continuous discharge (PCB-limited)
- Built-in protection helps prevent overcharge and over-discharge
- Long-life rechargeable cell rated for up to 500 cycles
Note: This is a button top protected 18650 battery which is longer than a standard flat top unprotected 18650 battery.
Overview
The Nitecore NL1834 is a protected 18650 lithium-ion battery designed for dependable runtime and safe operation in compatible devices. With a 3400mAh capacity and integrated PCB protection, it provides stable performance for lighting and portable electronics while helping safeguard against common electrical faults.
Applications / Uses
- High-output LED flashlights
- Searchlights and portable lighting equipment
- Compatible devices requiring button top 18650 cells
- Backup power and emergency kits
- Portable electronics designed for protected 18650 batteries
SPECIFICATIONS
| Manufacturer | Nitecore |
| Model | NL1834 |
| Size | 18650 |
| Positive Terminal | Button Top |
| Nominal Capacity | 3400mAh |
| Continuous Discharge Rating | 6A Max Continuous (PCB limitation) |
| Nominal Voltage | 3.7V |
| Maximum Voltage | 4.2V |
| Protected | Yes (PCB) |
| Rechargeable | Yes |
| Approx. Dimensions | 18.4mm × 69.1mm |
| Approx. Weight | 47.4g |
| Data Specification Sheet | Nitecore NL1834 18650 3400mAh Battery Datasheet |
⚠ Important Safety Warnings
While this battery is equipped with built-in protection circuitry to help prevent overcharging, over-discharging, and short circuits, improper handling or misuse can still result in FIRE, EXPLOSION, or THERMAL RUNAWAY, causing personal injury or property damage. Users must read and follow all safety guidelines before purchase and use. Click here to review the full safety guidelines.
- Intended Use: This battery is designed for use in flashlights, headlamps, and similar devices that require a button top configuration. Ensure compatibility with your device before use.
- Protection Circuit Limitations: While the protection circuit provides additional safety, it cannot prevent damage caused by misuse, including exposure to liquids, extreme heat, or physical damage.
- Storage & Transport: Always store batteries in protective cases to prevent accidental contact with metal objects (e.g., keys, coins, tools) that can cause a short circuit. Do not store loose batteries in pockets, bags, or other uncontrolled environments.
- Inspection: Do not use if the battery is dented, leaking, bulging, or if the outer wrapper or button top is damaged.
- Charging: Use a smart charger specifically designed for button top protected batteries. Do not exceed the battery's voltage and current specifications. Never leave the battery unattended while charging.
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Prohibited Activities:
- Do not expose the battery to water, fire, or high heat.
- Do not modify, puncture, crush, or attempt to disassemble the battery.
- Do not use the battery if it becomes unusually hot during use or charging.
- Emergency Response: If the battery overheats, emits smoke, or shows other signs of failure, stop using it immediately. Move the battery to a safe, non-flammable surface (e.g., sand or concrete) and follow emergency protocols.
Disclaimer
18650Battery.com is not responsible for any damages, injuries, or claims arising from improper use, handling, or failure to follow these safety guidelines. Lithium-ion batteries require strict adherence to all safety protocols. It is the reseller's responsibility to ensure all safety warnings and product guidelines are effectively communicated to customers. Users and resellers assume full responsibility for the safe handling, usage, and distribution of this product.