Rhythm P2-S4 Double Battery

Rhythm P2-S4 Double Lithium-Ion Battery – Extended Runtime Replacement / Spare

Extend your freedom and mobility with the official Rhythm P2-S4 Double Lithium-Ion Battery. Designed specifically for the Rhythm P2-S4 Portable Oxygen Concentrator, this double battery pack delivers significantly longer runtime while keeping your unit lightweight and portable for all-day use, travel, and active adventures.

Key Features & Benefits

• Extended Power: Provides up to 4.8 hours of runtime on setting 1 (approx. 3.5 hours on setting 2, 2.5 hours on setting 3, and 2 hours on setting 4). Ideal for longer outings, travel, or full-day activities.
• High Capacity Lithium-Ion Technology: Rated at 6,800 mAh. Recharges in approximately 3–4 hours using the AC adapter (or compatible external charger).
• Lightweight & Portable: Adds minimal weight while maximizing runtime. Keeps your P2-S4 highly portable (approximately 4 lbs total with double battery attached).
• Easy Installation: Simply slide the double battery pack into place on your P2-S4 until it clicks securely. No tools required.
• Reliable & FAA-Compliant: Meets the same high safety and performance standards as your original battery – perfect for air travel and daily use.
• Genuine OEM Quality: Official Rhythm Healthcare replacement (part # S3BY001D) – ensures perfect fit, safety, and optimal performance with your P2-S4.

Ideal For

• Users who need longer battery life for extended time away from power sources
• Travel, daily errands, work, or outdoor activities
• Those wanting the perfect balance between runtime and portability

Note: This listing is for the Double Battery only. Single and Triple battery options are also available.

What’s Included

• 1 × Rhythm P2-S4 Double Lithium-Ion Battery Pack

Compatibility

Specifically designed for the Rhythm P2-S4 Portable Oxygen Concentrator

Warranty

Matches manufacturer standards. Please check with your retailer for details.

Power your active life with confidence — order your Rhythm P2-S4 Double Battery today for extended freedom and reliable oxygen therapy on the go!