Replacement 4-Cell 21700 Rechargeable Battery Pack for 120W Laser Igniter

Product Overview

This replacement rechargeable lithium battery pack is designed for use with the Professional 120W Laser Igniter.

Built with 4 high-discharge 21700 lithium cells, the battery pack provides stable power delivery and is suitable as a replacement for an existing battery or as an additional spare battery for extended use.

Its removable design allows the battery pack to be replaced easily when required.

Key Features

• Designed for the Professional 120W Laser Igniter
• Rechargeable lithium battery pack
• 4-cell 21700 battery configuration
• High-discharge capability
• Stable power output
• Replaceable design
• Suitable as a spare or replacement battery
• Compatible with the original 16.8V charging system

Battery Specifications

Compatibility

This battery pack is intended for the:

Professional 120W Laser Igniter with 50× Beam Expander (70 mm Aperture)

Please confirm compatibility with your device before ordering.

If you are unsure whether this battery fits your laser igniter, please contact us and provide a photo or model information before purchase.

Package Includes

• 1 × Rechargeable 4-Cell 21700 Lithium Battery Pack

Battery charger is not included unless specifically selected or stated in the product option.

Charging Information

Use only the original charger or an approved compatible charger.

Recommended charger specification:

• Output Voltage: 16.8V
• Output Current: 2A
• Typical Charging Time: Approximately 2 hours

Charging time may vary depending on battery condition and remaining charge level.

Important Battery Safety

⚠️ Lithium Battery Safety Notice

• Use only a compatible 16.8V charger.
• Do not short-circuit the battery terminals.
• Do not disassemble, puncture, crush, or modify the battery pack.
• Keep away from fire, excessive heat, water, and moisture.
• Do not charge or use the battery if it appears swollen, damaged, leaking, or unusually hot.
• Do not leave the battery charging unattended for extended periods.
• Keep away from children.
• Store in a cool, dry place when not in use.
• Follow applicable regulations regarding lithium battery transportation, storage, and disposal.

Why Keep a Spare Battery?

An additional battery can be useful for customers who require:

• Longer operating availability
• Backup power during field use
• A replacement for an older battery
• Reduced downtime while another battery is charging

Why Choose Lilly Electronics?

Lilly Electronics provides replacement parts and accessories for supported professional optical equipment.

Our advantages include:

• Factory Direct Supply
• Quality Inspection
• Worldwide Shipping
• Technical Support
• Replacement Parts Availability
• OEM & Wholesale Support

Frequently Asked Questions

Is this battery rechargeable?

Yes. It is a rechargeable 4-cell 21700 lithium battery pack.

Is the charger included?

The standard battery-only package does not include the charger unless otherwise stated.

What charger should I use?

Use the original charger or an approved compatible 16.8V / 2A charger.

Is this compatible with all laser igniters?

No. This battery is specifically intended for compatible Professional 120W Laser Igniter models. Please confirm your model before ordering.

Can I purchase this as a spare battery?

Yes. It can be purchased as either a replacement or additional spare battery.