Battery Head Strap for Google Kiwi design K4 Boost (replacement/accessory)

Replacement battery head strap designed for the Google Kiwi design K4 Boost. This accessory houses and secures the compatible battery module at the rear of head-mounted devices to provide hands-free power placement, improved balance and extended playtime. It is intended for maintenance, replacement or upgrade of original head strap assemblies where the K4 Boost-compatible battery module is used and integrates with the device’s comfort and charging system.

Advantages

The head strap restores rear-mounted battery support to maintain stable balance and reduce forward pull on the face. Ergonomically contoured padding improves comfort during extended sessions while a cushioned hinge and quick-adjust knob enable easy fitting and removal. The strap supports fast dual charging workflows when used with compatible power systems and provides certified battery safety and durable construction for reliable daily use.

Suitable for

• Replacement of worn or damaged head straps on devices compatible with the K4 Boost battery module
• Upgrading an existing head strap to restore balance and extend runtime
• Maintenance and device servicing where rear-mounted battery mounting is required
• Users seeking a hands-free battery placement solution to reduce headset front weight

Key specifications

• Compatibility: Designed for headsets using the Google Kiwi design K4 Boost battery module
• Ergonomic design: Reinforced padded backrest and balanced counterweight for reduced facial pressure
• Adjustment range: Quick-adjust knob and cushioned hinge for easy on/off and fit customization
• Charging support: Works with dual fast charging systems delivering rapid recharge when paired with compatible adapters
• Safety and durability: Constructed from materials tested to meet safety and reliability standards

How to use

Attach the strap to the headset following the device manufacturer’s alignment points and secure the compatible battery module into the rear mounting bay until it locks. Adjust the quick-adjust knob to achieve a snug but comfortable fit and use the cushioned hinge to set the headband angle for easy on and off. When charging, connect the compatible dual charging adapter to the battery system according to the adapter instructions; ensure contacts are clean and the battery is properly seated before initiating charge.

Usage recommendations

Use certified chargers and follow the headset manufacturer’s guidelines for battery handling. Inspect straps and padding periodically for wear, and replace the strap if padding or attachment points are damaged. For optimal balance, fine-tune the counterweight position and tighten the adjustment knob to minimize headset shift during use.