Battery Relief Strap BOBOVR P4S for Pico 4 Ultra — ergonomic adjustable support strap

BOBOVR P4S is a replacement battery relief strap designed for the Pico 4 Ultra and Pico 4 Ultra Enterprise headsets. It integrates a removable magnetic battery pack, reinforced rear head support and an improved top strap to redistribute weight and increase comfort during longer virtual reality sessions. The kit includes cushions in PU leather and honeycomb silicone, cable management accessories and a B2 5200 mAh rechargeable battery pack that extends headset runtime.

Advantages

The strap uses a magnetic hot-swap system for quick battery replacement without interrupting play. Its lightweight construction and contoured shape reduce pressure on the face and stabilize the headset during movement. Two interchangeable pads (PU leather and silicone honeycomb) allow personalization for comfort or grip, while memory-foam rear support provides extended cushioning. Included cable organizers and a mounting bracket simplify installation and cable routing.

Suitable for

• Extended VR gaming sessions with Pico 4 Ultra and Pico 4 Ultra Enterprise
• Enterprise or training use where longer runtime is needed
• Users who need improved weight distribution and headset stability
• Situations requiring quick battery changes during use

Key specifications

• Manufacturer: BOBOVR
• Model: P4S PICO
• Battery pack: B2, 3.7V 5200 mAh (19.24 Wh)
• Nominal output: 5V 1.5A (3200 mA nominal capacity)
• Power input/output: 5V 2.6A
• Charging time: ~3 hours 0–100% (2 hours to 80%)
• Extended operating time: approx. 1.5 hours additional runtime
• Battery type: rechargeable lithium battery
• Battery pack size: 85 × 47 × 32 mm
• Battery base package size: 170 × 125 × 65 mm; package weight: 160 g
• Materials: PU, silicone, memory foam

How to use

Attach the BOBOVR P4S strap to the Pico 4 Ultra headset following the included instructions and secure the docking part for the battery pack. Slide or snap the magnetic B2 battery into the dock; the battery activates automatically when connected. Use the top strap and rear support adjustments to achieve balanced weight distribution and comfortable fit. Charge the B2 battery with the supplied USB‑C cable before first use and monitor charging until complete.

Recommendations

For best results charge the headset to at least 50% before attaching the B2 battery. The manufacturer indicates the B2 adds approximately 65% more runtime; expect around 1.5 hours of additional operation. Use the PU pad for softer comfort and the honeycomb silicone pad for a firmer, non-slip fit. Keep the magnetic contacts clean and secure the cable with the included holder to avoid strain on connections.