3.7V, Li-ion, 3400mAh, Speaker battery fits Bose, 520ii, 525ii, 12.58Wh _Hi_chtgptapp_optimised_this_seo-meta-description + Always confirm your existing

+ Always confirm your existing battery model

Durable Housing: High-strength ABS plastic case

Gogear Hdd082/17 2gb

Unlock uninterrupted performance with the Cameron Sino CS-SMB311SL replacement battery

Kyocera:- 5aaxbt076gea

3.7V, Li-ion, 3400mAh, Speaker battery fits Bose, 520ii, 525ii, 12.58Wh _Hi_chtgptapp_optimised_this_seo-meta-description + Always confirm your existingCameron Sino CS BSV535XL Replacement Battery for Bose Speaker Systems 3400mAh Upgrade the performance of your Bose speaker systems with the Cameron Sino CS BSV535XL replacement battery. Designed to deliver unmatched reliability, this 3400mAh Li ion battery ensures your Bose speakers stay powered for immersive sound experiences. Whether it's for home entertainment or professional audio use, this battery provides consistent, high quality performance.