This high-capacity 750mAh lithium-ion battery replacement is specifically designed for Bose QuietComfort 35 and QC35 II wireless headphones. If your QC35 headset no longer holds a charge or has a short battery life, this direct replacement restores up to 20 hours of wireless listening. The battery features built-in protection modules for safe charging, with a working voltage range of DC 3.3 to 4.2V. It is rechargeable and built to last for years. Easy to install with basic tools (instructions not included). A cost-effective way to extend the life of your premium headphones rather than buying new. Warning: This is a lithium-ion battery; ensure correct disposal and handling.
