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Rowenta RS-RH5273 Stick Vacuum Replacement Battery 18.5V 2600mAh

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Fits Rowenta RH885701/9A0 and RH885701/9A2 stick vacuums; replaces OEM battery part RS-RH5273 and MISRH5273-01.
18.5V lithium-ion pack at 2600mAh capacity delivers full motor torque on carpeted floors without sag.
Battery slides into the grip slot with a quarter-turn locking collar; connector seats flush to motor housing.
We bench-tested the BMS under sustained suction load — no voltage collapse or early cutoff observed.
Do not leave this battery on the charging dock after reaching full charge; continuous dock contact accelerates capacity fade in Rowenta platforms.
Delivery time

This product ships directly from our Manufacturer's Warehouse and is usually delivered within 7 – 10 business days to your doorstep.

Discount: As a thank you for your patience, enjoy 5% off on your order
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To provide the highest-quality replacement battery, we ship this battery directly from the manufacturer rather than from aging warehouse inventory. This means delivery may take a little longer, but it helps ensure you receive a fresh battery with better performance, a longer lifespan, and greater reliability.

Estimated delivery: 7–10 business days
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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

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🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

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⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

Voltage

18.5V

Amp

2600mAh

Rowenta RH885701/9A0 Series — 18.5V Li-ion Replacement Battery (RS-RH5273)

This 18.5V, 2600mAh (48.1Wh) lithium-ion battery fits the Rowenta RH885701/9A0 cordless stick vacuum and compatible models in the same range. It replaces OEM part RS-RH5273 directly. The battery slots into the same position as the original and connects to the same BMS communication line the charger expects.

  • RH885701 and RH8813WH compatibility: Both the RH885701 and RH8813WH sub-variants run the same 18.5V motor rail and use an identical connector housing and BMS handshake protocol. That shared architecture is why a single cell works across the full range — voltage tolerance and charge termination logic are identical across all listed models.
  • Bench tested on actual hardware: We ran this cell through full charge and discharge cycles on the RH885701 platform. The BMS held charge termination correctly at the expected cutoff voltage, and the overcurrent protection tripped within spec under simulated blockage load — then reset cleanly once load was removed.
  • Dock charging habit on this vacuum: Do not leave the vacuum sitting on the charging dock continuously between uses. The RH885701 charger does not drop to a true maintenance rate once full — sustained trickle input accelerates cell degradation faster than normal cycle wear. Charge to full, then remove from the dock.

Suction dropping before the battery indicator reaches low

This is one of the most common complaints on the RH885701 platform, and it is usually misread as a battery fault. The motor on this vacuum draws significantly more current when the filter is partially blocked — restricted airflow forces the motor to work harder, pulling the cell voltage down faster than the indicator anticipates. The BMS reads that voltage sag as normal draw and does not flag low battery, but suction still suffers. Clean or replace the filter first, then retest — if suction holds steady through a full charge cycle, the battery is not the issue.

Motor cuts out mid-clean then recovers after a few seconds

This is a BMS overcurrent trip, not a failed battery. When suction is restricted — blocked nozzle, saturated filter, or heavy carpet pile — current draw spikes above the BMS protection threshold and the cell disconnects to protect itself. The recovery after a few seconds is the BMS resetting once the overcurrent condition clears. Check the nozzle for blockage and inspect the filter before assuming the replacement cell is faulty. If the trip happens on an unobstructed floor with a clean filter, measure resting cell voltage — it should sit above 18V after a full charge.

Compatible Models

RH885701/9A0 RH885701/9A2 RH8813WH/9A0 RH8813WH/9A2 RH8812WH/9A0 RH8812WH/9A2 RH8819WH/2D0 RH8819WH2D2 RH8819WH/9A0 RH8819WH/9A2 RH8911WH/2DO RH8912WH/2DO RH8919WH/2DO RH8817WI2D2 RH8812WH2D2 RH8812WH9A0 RH8812WH9A2 RH8813WH2D2 RH8813WH9A0 RH8813WH9A2 RH8819WH2D0 RH8819WH9A0 RH8819WH9A2 RH8841K09A0 RH8851U19A0 RH8851U19A2 RH8857019A0 RH8857019A2 RH8911WH2D0 RH8912WH2D0 RH8919WH2D0 TY8812RH2D2 TY8812RH9A0 TY8812RH9A2 RH8819WH/2D2 RH885701 / 9A0 RH885701 / 9A2 RH8813WH / 9A0 RH8813WH / 9A2 RH8812WH / 9A0 RH8812WH / 9A2 RH8819WH / 2D0 RH8819WH / 9A0 RH8819WH / 9A2 RH8812 RH8813 RH8817 RH8819 RH8841 RH8851 RH8857 RH8911 RH8912 RH8919 TY8812 TY8813 TY8818 TY8840 TY8841 TY8846 TY8848 TY8911 TY8913 TY8941 TY8949 RH8812WH / 2D2 RH8813WH / 2D2 RH8817WI / 2D2 RH8819WH / 2D2 RH8841K0 / 9A0 RH8851U1 / 9A0 RH8851U1 / 9A2 RH8911WH / 2D0 RH8912WH / 2D0 RH8919WH / 2D0 TY8812RH / 2D2 TY8812RH / 9A0 TY8812RH / 9A2 TY8813RH / 2D2 TY8813RH / 9A0 TY8813RH / 9A2 TY8818RH / 2D2 TY8840JH / 9A0 TY8841HH / 2D2 TY8841HH / 9A0 TY8841HH / 9A2 TY8841KL / 2D2 TY8841KL / 9A0 TY8841KL / 9A2 TY8846KM / 2D2 TY8846KM / 9A0 TY8846KM / 9A2 TY8848JH / 9A0 TY8911RH / 2D0 TY8913RH / 2D0 TY8941KL / 2D0 TY8949KO / 2D0 RH8812WH/2D2 RH8813WH/2D2 RH8817WI/2D2 RH8841K0/9A0 RH8851U1/9A0 RH8851U1/9A2 RH8911WH/2D0 RH8912WH/2D0 RH8919WH/2D0 TY8812RH/2D2 TY8812RH/9A0 TY8812RH/9A2 TY8813RH/2D2 TY8813RH/9A0 TY8813RH/9A2 TY8818RH/2D2 TY8840JH/9A0 TY8841HH/2D2 TY8841HH/9A0 TY8841HH/9A2 TY8841KL/2D2 TY8841KL/9A0 TY8841KL/9A2 TY8846KM/2D2 TY8846KM/9A0 TY8846KM/9A2 TY8848JH/9A0 TY8911RH/2D0 TY8913RH/2D0 TY8941KL/2D0 TY8949KO/2D0 Air Force Extreme Air Force Extreme Silence RH8919WH / 2D2 RH8919WH / 2D1 RH8919WH/2D1 RH8919WH/2D2

Replaces Part Numbers

RS-RH5273 MISRH5273-01

Technical Specifications

Voltage18.5V
Amp Hours2600mAh
Capacity2600mAh
Rate48.1Wh
Net Weight315g /11.11 oz
Gross Weight495g /17.46 oz
Approximate Weight495g /17.46 oz
Dimension 160.00 x 45.00 x 51.80mm

Product Highlights

  • Brand: Rowenta
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Li-ion
  • Battery Type: Li-ion
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

My Rowenta RH885701 has noticeably less suction after about a year — is that the battery fading or something else?

Capacity fade in the cell reduces the voltage the motor sees under load, which directly cuts airflow. However, a partially clogged filter causes the same symptom and is more likely at that age — a restricted filter forces the motor to draw more current, which sags the cell voltage faster. Clean the filter first and run a full charge cycle; if suction improves, the cell still has usable life. If it doesn't recover, the cell is the cause — check that resting voltage after a full charge reads at or above 18V.

I've been leaving my RH8813WH on the dock between every use — could that have killed the original battery?

Yes, that is the most common cause of premature capacity loss on this platform. The RH8813WH charger continues to push current into the cell after it reaches full charge rather than cutting to a true float mode, and sustained input at full state-of-charge breaks down the cell chemistry over time. The damage accumulates across weeks and months, not single sessions. With the replacement cell, charge to full and remove it from the dock — only return it when the charge is depleted.

The replacement battery isn't charging — the charger light just blinks and stops. What's happening?

A blinking-then-stopping charger light on the RH885701 platform usually means the charger cannot complete its BMS handshake with the new cell — typically because the cell arrived in a deeply discharged state below the charger's minimum acceptance voltage. Let the vacuum sit on the dock for 30 minutes with no expectation of a full charge — some chargers will trickle enough current to bring the cell above the threshold so normal charging can begin. If the light still blinks after that, measure the cell voltage at the contacts; a reading below 14V indicates the cell needs a pre-charge pulse before the standard charger will accept it.

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