Lumenok Replacement Battery for Bolt Ends. They can also be used in the following Lumenok models to reduce the overall weight by 4 grains: the Lumenok Signature the Lumenok GTand the Lumenok H. Specifications for Lumenok Replacement Battery For Bolt Ends (br424) 2pk: Other features: Used to repower your lumenok fits all lumenok crossbow bolt ends Features of Lumenok Replacement Battery For Bolt Ends (br424) 2pk: The Lumenok RBS is a 2 pack of ( BR-425) replacement batteries for Lumenok Crossbow bolt ends.. Weighs 8 grains Package Contents: Lumenok Replacement Battery For Bolt Ends (br424) 2pk The Lumenok Replacement Battery For Bolt Ends (br424) 2pk is a quality addition to the Lumenok lineup. For more great deals on Bow Tuning & Archery Accessories by Lumenok please browse our Lumenok Archery Equipment page. Lumenok Replacement Battery For Bolt Ends br424 2pk