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Rhythm Triple Battery for P2-S3 and P2-S4

Genuine triple battery set for the Rhythm P2-S3 and P2-S4 — the longest range option.

US$260.00

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Call (786) 755-8063

Genuine triple battery set for the Rhythm P2-S3 and P2-S4
Longest range — the listing estimates up to about 12 hours combined (setting-dependent)
Perfect for long flights, road trips, and full days away from an outlet
Tool-free to install and swap
Ships free in the USA

Genuine triple battery set for the Rhythm P2-S3 and P2-S4
Longest range — the listing estimates up to about 12 hours combined (setting-dependent)
Perfect for long flights, road trips, and full days away from an outlet
Tool-free to install and swap
Ships free in the USA

Genuine OEM partFree shipping on orders $99+Ships from Miami, FLExpert help · (786) 755-8063

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Brand: Rhythm Healthcare
SKU: S3BY001T
Category: Batteries

In short

Maximum range for your P2-S3 or P2-S4

The S3BY001T is the genuine triple battery set for the Rhythm P2-S3 and P2-S4 portable oxygen concentrators. Three packs give the longest time between charges — the listing estimates up to about 12 hours combined (setting-dependent).

A genuine three-battery set for the longest days out — travel, road trips, and full-day independence.

✅ Rhythm P2-S3 ✅ Rhythm P2-S4 ❌ Rhythm P2 ❌ Rhythm P2-E6 ❌ Rhythm P2-E7 ❌ Rhythm TOC3

Shop the compatible concentrator: Rhythm P2-S3 · Rhythm P2-S4

Longest range

Three genuine packs give the most time between charges — the listing estimates up to about 12 hours combined, setting-dependent.

P2-S3 & P2-S4

Made for the Rhythm P2-S3 and P2-S4. It does not fit the P2, P2-E6, P2-E7, or TOC3.

Travel-ready

Ideal for long flights and road trips where charging options may be limited.

Details

What's included

A genuine Rhythm triple battery set (part S3BY001T) for the P2-S3 and P2-S4. Chargers and power supplies are sold separately unless noted.

Why genuine matters

Genuine Rhythm packs are built to the P2-S3/S4's power and safety spec for a secure fit and reliable output. The triple set is the top tier: single (S3BY001S) for light use, double (S3BY001D) for full days, and this triple for the longest range. Exact runtime varies by setting — ask us to confirm for your device.

Frequently asked questions

Which models does this fit?

The Rhythm P2-S3 and P2-S4 only. It does not fit the P2, P2-E6, P2-E7, or TOC3.

How is this different from the single and double sets?

It's the longest-range option. Single (S3BY001S) suits short trips, double (S3BY001D) covers full days, and this triple gives the most combined runtime for extended travel.

How many hours will I get?

The listing estimates up to about 12 hours combined, but it depends on your flow setting. Contact us and we'll confirm for your setting.

Is it genuine?

Yes, a genuine Rhythm triple battery set for the P2-S3 / P2-S4. It ships free in the USA.

Can I fly with it?

They're lithium-ion, so airline rules for spare batteries in carry-on apply. Carry them in the cabin and check your airline's policy first.