Corsair 2100 Battery replacement, with 18650, and Boom mic fix! - Guides and Tutorials - Linus Tech Tips
Amazon.com: Battery Replacement for Corsair CA-9011127-NA, CA-9011136-AP, Gaming H2100 Dolby 7.1 Wireless Gaming Headset, H2100 Part NO MH45908 : Video Games
Battery replacement for Corsair Void headset : r/Corsair