Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Enjoy free shipping during the holidays! Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC and to all U.S. Military APO/FPO/DPO addresses.

Enjoy Our Extended FREE RETURNS

We want to ensure that making a return is as easy as possible! With our Hassle-Free, Extended Holiday Returns, eligible orders placed from November 12, 2025 on will benefit from an extended return deadline (January 13, 2026 or 30 days after receipt of your order - whichever is later). We'll even cover the cost of return shipping. Learn more about our Return Policy.

Shopping Cart
Customer Reviews
Most Recent Reviews
SureFire XSC 3.7 V battery by JT, Verified Owner, May 25, 2025
High power, light , rechargeable, easy to swap with backup battery
Read 1 Review
Color: Black Length: 5 inCondition: New Battery Type: 3.7V Lithium Polymer Battery

Code: FS-BT-LPBT-B12

MPN: B12

UPC: 084871329194

List: $37.99Save $2.00
$35.99

Buy Together and Save

Receive $1.28 OP Bucks

Product Info for SureFire XSC 3.7V Lithium Polymer Battery

Specifically engineered to fuel the SureFire XSC micro-compact WeaponLight series, the SureFire B12 is a quick-detach, rechargeable lithium-polymer battery that can be swapped fast without removing the XSC from the host pistol. The compact B12 powers the 350-lumen XSC for up to 30 minutes. Its charge status can be checked quickly by pressing the push-button fuel gauge switch located on the side of the battery and observing the green, yellow and red LED indicators.image

WARNING: California`s Proposition 65

Specifications for SureFire XSC 3.7V Lithium Polymer Battery:

Manufacturer: SureFire
Color: Black
Length: 5 in
Weight: 0.4 oz
Condition: New
Battery Type: 3.7V Lithium Polymer Battery

Features of SureFire XSC 3.7V Lithium Polymer Battery

  • The genuine power source for the SureFire XSC micro-compact WeaponLight
  • Quickly detaches from XSC chassis for fast battery swaps
  • Saves money by offering convenient rechargeability with SureFire's CH21 Cradle Charger

Package Contents:

  • SureFire XSC 3.7V Lithium Polymer Battery
  • Warranty on XSC Charger and Battery: 2 years

SureFire XSC 3.7V Lithium Polymer Battery Orderable Models

List of Orderable Models

  • SureFire XSC 3.7V Lithium Polymer Battery, Black, B12 , MPN: B12 , UPC: 084871329194 , Code: FS-BT-LPBT-B12

SureFire XSC 3.7V Lithium Polymer Battery Unavailable & Discontinued Models

List of Unorderable Models

  • USED, SureFire XSC 3.7V Lithium Polymer Battery, Black, B12 , MPN: B12-EDEMO , Code: FS-BT-LPBT-B12-EDEMO-RE-B
Compare (0)