BOBOVR M3 Pro Head Strap - 5,200mAh Battery for Quest 3

BOBOVR M3 Pro Battery Pack Head Strap brings a suspended halo-style fit, a magnetic B2 battery, and compatibility with Meta Quest 3 and Quest 3S. Its single battery is rated at 5,200mAh and adds about 1.5 hours of VR playtime, according to BOBOVR's M3 Pro specifications.

Suspended Fit and Magnetic Power

The strap uses a suspended design with multi-point adjustment. BOBOVR says the layout transfers pressure away from the face and supports use with the facial interface removed for mixed-reality viewing.

The B2 battery attaches magnetically and can be removed for charging. A second battery is sold separately, and the design supports hot-swapping during play. The battery itself weighs 140g, a figure that helps explain the rear counterweight used by the strap.

Quest 3 Compatibility and Price

The M3 Pro is compatible with Meta Quest 3 and Quest 3S. An independent accessory guide lists 5,200mAh capacity, 430g weight, polymer and PU leather materials, and a $49.99 price for the model as of 09/24/2026.The independent listing records the M3 Pro details.

BOBOVR's product listing also gives an 18-month warranty for items sold directly by the company and a 30-day return period for unused products in original packaging. The direct listing shows the strap as a Quest 3 and Quest 3S accessory rather than a standalone battery pack.

How It Compares With the Stock Strap

Meta Quest 3 ships with a basic fabric strap, while the M3 Pro replaces that support system with a rigid halo structure, padding, rear adjustment, and a rechargeable battery. The comparison is therefore about fit and runtime as much as power capacity.

The M3 Pro's 5,200mAh battery is the defining difference from a non-battery replacement strap. Its stated 1.5-hour runtime increase is lower than the roughly two-hour figure reported by Android Central for some usage conditions, so application and headset behavior affect the result.

Who the M3 Pro Fits Best

At $49.99 as of 09/24/2026, the M3 Pro sits below the $79.99 price listed for Kiwi Design's H4 Boost Battery Head Strap in the same accessory guide. Its clearest use case is a Quest 3 or Quest 3S owner who wants a halo fit and removable power in one accessory.

The strap does not include a charging dock, and a second battery costs extra. Those limits matter for users seeking a complete charging station or continuous sessions without pausing to recharge a battery pack.