Description
ThruNite 21700 5000mAh Proprietary Battery for Flashlights Description
The ThruNite 21700 5000mAh Proprietary Battery for Flashlights is a high-capacity, rechargeable Li-ion battery designed for ThruNite high-drain flashlights, ideal for outdoor activities or tactical use. For example, it powers the ThruNite TT20 and T2 models, providing long-lasting performance during camping or emergencies, as noted in user reviews on torchsa.com. Plus, its built-in protection ensures safety. With a 1-year warranty, this ThruNite 21700 5000mAh Proprietary Battery for Outdoor Use suits flashlight enthusiasts, campers, and tactical users.
High Capacity for Long-Lasting Power
This battery offers a 5000mAh capacity with a 3.7V nominal voltage, providing a watt-hour rating of 18.5Wh, as per thrunite.com. It's designed for high-drain devices, delivering consistent power for ThruNite flashlights like the TT20 (up to 2528 lumens) and T2 (up to 4000 lumens), with runtimes extending to several hours on lower modes, as noted on torchsa.com. For instance, it supports over 500 charge cycles, retaining 75% capacity after 500 cycles, though proper storage at 30-50% charge is recommended to maintain longevity, according to batteryjunction.com. Thus, it's perfect for extended outdoor use, though its proprietary design limits compatibility with non-ThruNite devices, as discussed on Reddit forums.
Built-In Protection for Safety
The ThruNite 21700 5000mAh Proprietary Battery features a protected button-top design with a built-in circuit to prevent overcharging, over-discharging, short-circuiting, and overheating, ensuring safe operation, as highlighted on thrunite.com. It has a unique structural design for better impact resistance, with three sets of over-heat protection, as per torchsa.com. The battery measures 74.8mm in length and 21.5mm in diameter, weighs approximately 70g, and is tailored for ThruNite TT20 and T2 models, though some users on Reddit note its proprietary nature means it won't work in other 21700-compatible flashlights without modification, such as adding a spacer for standard flat-top batteries. This makes it a reliable choice for ThruNite users but less versatile for those with mixed-brand collections.
Designed for Outdoor and Tactical Use
The ThruNite 21700 5000mAh Proprietary Battery for Outdoor Use is optimized for ThruNite flashlights, supporting high-performance needs in outdoor and tactical scenarios. For example, users on torchsa.com value its ability to power the TT20 during long camping trips, with a review from Daniel Shapiro on September 5, 2022, stating, "A long-lasting battery for your favorite ThruNite flashlights, the ThruNite 21700 has the power you need." However, its proprietary design has drawn criticism on Reddit, with users noting higher costs compared to standard 21700 batteries and potential issues if ThruNite discontinues production, as discussed in a 2021 thread. It's ideal for camping, hiking, or tactical use with ThruNite devices, offering dependable power for critical situations.
Key Features and Specs
The ThruNite 21700 5000mAh Proprietary Battery for Flashlights is built for performance. It features a 5000mAh capacity, built-in protection circuits, and compatibility with ThruNite TT20 and T2 models, with a 1-year warranty for added reliability. Plus, its impact-resistant design and over-heat protection make it a top choice for outdoor users, as noted in user feedback on torchsa.com. This battery excels for ThruNite flashlights in outdoor, tactical, or emergency scenarios, ensuring consistent power for demanding applications.
Specifications Overview
- Type: Rechargeable 21700 Li-Ion Battery (Proprietary, Protected)
- Capacity: 5000mAh
- Nominal Voltage: 3.7V
- Watt-Hour Rating: 18.5Wh
- Charge Cycles: Over 500 (Retains 75% Capacity After 500 Cycles)
- Protection: Built-In Circuit (Overcharge, Over-Discharge, Short-Circuit, Over-Heat)
- Top Design: Button Top (Proprietary)
- Dimensions: 74.8mm (Length) x 21.5mm (Diameter)
- Weight: Approximately 70g
- Compatibility: ThruNite TT20, T2 (Not Compatible with TN42 V2 or Standard 21700 Devices)
- Warranty: 1 Year
Package Contents
The package includes:
- ThruNite 21700 5000mAh Proprietary Battery
- User Manual
Note: A compatible charger is not included; you will need to use a suitable charger for 21700 batteries, such as one provided with ThruNite flashlights like the TT20 or T2.
