XTAR 21700 6000mAh 10A Protected Li-ion Battery
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Power your compatible flashlight with longer runtime and dependable performance. The XTAR 21700 6000mAh Li-ion Battery combines an extra-high 6000mAh capacity with a 10A maximum continuous discharge current, making it an excellent choice for flashlights and other compatible devices where extended runtime and stable power delivery are important.
6000mAh High Capacity
With a nominal capacity of 6000mAh, this XTAR 21700 battery provides more stored energy than many conventional 21700 cells. The increased capacity helps extend flashlight runtime, reducing the need for frequent battery changes or recharging during outdoor activities, work, travel, or everyday use.
Stable 10A Continuous Discharge
The battery supports up to 10A continuous discharge, providing reliable power for a wide range of compatible flashlights. It is particularly well suited to applications that prioritize a balance between high capacity, stable output, and long runtime rather than extremely high-drain performance.
Built-In Protection Circuit
An integrated protection circuit helps improve battery safety during everyday use. The protected design provides an additional layer of security compared with unprotected cells, making it a practical option for compatible flashlights and electronic devices.
600+ Charge Cycles
Designed for repeated use, the XTAR 21700 6000mAh battery is rated for 600+ charge-discharge cycles, offering a rechargeable and economical power solution for frequently used flashlights.
Button-Top Design
The battery features a button-top positive terminal for compatibility with flashlights designed to accept protected button-top 21700 batteries.
Key Features
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6000mAh high capacity for extended runtime
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3.6V nominal voltage
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Up to 10A continuous discharge
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Protected Li-ion battery
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Integrated safety protection circuit
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Button-top positive terminal
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Rated for 600+ charge-discharge cycles
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Suitable for compatible high-performance flashlights
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RoHS and CE certified
Specifications
| Specification | Details |
|---|---|
| Battery Type | Rechargeable Li-ion |
| Size | 21700 |
| Nominal Capacity | 6000mAh |
| Nominal Voltage | 3.6V |
| Max. Continuous Discharge Current | 10A |
| Protection | Yes |
| Positive Terminal | Button Top |
| Cycle Life | 600+ cycles |
| Dimensions | Ø21.8 ± 0.3 × 74.8 ± 0.5 mm |
| Weight | ≤76 g |
| Storage Temperature | -20°C to 60°C |
| Recommended Storage Temperature | ≤25°C |
| Certifications | RoHS, CE |
Compatibility Notice
This is a protected button-top 21700 battery measuring approximately 74.8 mm in length, which is longer than many standard unprotected flat-top 21700 cells. Please check your flashlight or device specifications and battery compartment dimensions before purchasing.
For best charging performance and battery longevity, use a quality Li-ion charger that supports protected 21700 batteries.









SHIPPING
The final shipping cost and estimated delivery timeframe will be available to you during checkout. Currently, we offer 3 International shipping methods which are steady and easy to track. Priority worldwide shipping, Premium ( Partial countries) and a faster Express shipping. The estimated times stated below are not guaranteed. An international package could experience delays like postal strikes or severe weather or Cov-19 situation. All shipping ways, PO Box address is not acceptable.
For some flashlights, there's a pure battery inside(phone charging),If We can not ship your packages via USPS or DHL,we'll ship your package in another way.
Note:
When you place an order for just the batteries, for easy shipping, faster and safe delivery, the batteries are placed in the flashlights.
If you don’t receive your order within the estimated time frame provided below and suspect that it might be lost in transit, please contact Flashlightgo Support ( support@flashlightgo.com ) and we can look into the order with the courier. Lost-in-transit requests must be submitted to Flashlightgo Support within 3 months of the date of shipping or before the courier archives the tracking information.
Option 1.
Express by DHL/UPS/Fedex/Aramax/SF etc ( there may be tax need to pay in this way),
The estimated time of delivery is usually 3-7 work days depending on the country. Includes detailed tracking and confirmation of delivery.
Option 2.
Premium ( 6-10days, All tax and Duty Paid),
All tax and duty are prepaid to carrier by Flashlightgo before shipping, so you dont need to pay any tax or duty when you get it.
Option 3.
Priority shipping(1-2 Weeks, average 10 days)
If we marked it is with all tax and duty paid, all tax and duty are prepaid to carrier by Flashlightgo before shipping, so you dont need to pay any tax or duty when you get it.
Learn more,Please click on Here.
To ensure that you get the desirable product, we allow a seven-day product return period. Any product return application outside this period will not be entertained.
All returned product must be unused and the original package should be kept.
Return:
We do not offer return for personal products like socks and hats or food, magazine and fragile or dangerous products The original receipt must be available for application of return.
Discount products:
No product return for discount products
Gifts products:
If the item is marked as a gift when purchased and shipped directly to you, it cannot be exchanged , refunded or warranty.
Exchange:
We only replace items if they are defective or damaged.
Exchange service are offered only to wrong deliveries or product damage not caused by client. If needed, please email to info@flashlightgo.com.
Warranty
How long is the warranty period?
Flashlightgo warrants to the original purchaser that the Product(s) shall be free of any defect in material or workmanship for a period of one year for labor and one year for parts from the date of the original order except the items listed below:
Chargers,Batteries and Other Accessories: 3 months warranty
Should the Product(s) supplied by Flashlightgo prove defective because of improper workmanship or material as reasonably determined by us, Flashlightgo agrees, at its option, to either repair or replace the Product free of charge, excluding any shipping or handling charges.
Learn more,Please click here.

