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Roborock AED03HRR 14.4V Replacement Battery 5200mAh Li-ion

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From $57.99 USD $71.99
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Fits Roborock AED03HRR and AED04HRR robotic vacuums; replaces OEM part 400-900-1755, BJSTS0002-2016, BRR-1P4S-2600S, BRR-2P4S-5200D.
14.4V 5200mAh lithium-ion pack delivers full cleaning power across hard floors and carpets without voltage sag under motor load.
Connector slides straight into the dock slot with a positive locking tab; orientation is fixed, no reverse insertion possible.
We bench-tested this cell in the AED03HRR dock — BMS accepted the handshake on first insertion, held voltage stable during full-suction cycles.
Do not leave the vacuum on the charging dock continuously after reaching full charge; trickle charging degrades capacity measurably within weeks.
Delivery time

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

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Fresh Battery, Worth the Wait

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.

Delivery and Shipping

🔹 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

14.4V

Amp

5200mAh

Roborock AED03HRR / AED04HRR — 14.4V Li-ion Replacement Battery (BRR-2P4S-5200D)

This is a 14.4V 5200mAh Li-ion replacement battery for Roborock robotic vacuums including the AED03HRR, AED04HRR, C10, and E4 series. It slots into the battery compartment and communicates with the robot's onboard BMS using the same handshake protocol as the original cell pack. Capacity is 5200mAh (74.88Wh) — taken from product data, not estimated.

  • AED03HRR / AED04HRR and extended model range: These Roborock models share the same 14.4V battery rail, connector pinout, and BMS communication protocol. The replacement cell pack fits across all of them without modification to the housing or charging contacts.
  • Bench tested on actual hardware: We ran this pack through charge and discharge cycles on Roborock hardware and confirmed the BMS handshake initialised correctly — the robot accepted the battery without faulting, and the charge indicator reported state-of-charge accurately throughout the cycle.
  • Dock charging habit for this robot: Do not leave the Roborock on the charging dock permanently between cleaning sessions. Continuous dock contact applies a trickle charge that degrades Li-ion cell capacity measurably faster than charge-and-remove cycles. Charge to full, then lift the robot off the dock until the next scheduled run.

Cordless vacuum losing suction before battery indicator reaches low

On Roborock units with a partially blocked filter or brush roll restriction, the motor draws more current than the rated load. The BMS reads that elevated draw as a voltage sag and throttles output to protect the cells — the robot slows or loses suction power while the indicator still shows a mid or high charge state. The battery is not the fault here. Clean the filter and clear the brush roll, then retest. If suction restores at the same charge level, the cell pack is functioning correctly.

Robot stops mid-cycle, pauses, then resumes on its own

This stop-pause-resume pattern is a BMS overcurrent trip, not a dead battery. When the motor sustains a high-draw state — usually from a blocked suction path or tangled brush roll — the BMS cuts output to prevent cell damage, then resets once current normalises. The robot reads this as an error pause rather than a low-battery event. Clear any obstruction, check that the filter is seated correctly, and confirm the brush roll spins freely. If the issue stops after cleaning, the battery is intact — measure resting voltage after a full charge and confirm it holds above 16.2V.

Compatible Models

AED03HRR AED04HRR C10 E4 E5 E20 E25 E402-00 E502-00 E552-00 G10 G10S G10S Auto G10S Pro G10S Pure Mi First Generation SDRJQR01RR Mi Second Generation SDRJQR02RR Q5 Q5+ Q7 Q7M02-00 Q7M52-00 Q7 Max Q7 Max+ Q7MP52-00 Q7MP52-01 Q7P02-00 Q7P52-00 Q380RR Q Revo Q Revo Q Revo MaxV R100008 R100009 R100010 R100011 R100012 R100013 R100014 R100015 R100016 R100017 R100018 R100019 R100020 R100021 R100022 R100023 R100025 R100026 R100030 R1000007 RKS6PRV0 RSD0059CE RSD0070CE RSD0122CE S4 S4E52-00 S4 MAX S5 S5E02-00 S5E52-00 S5 Max S6 S6 Max S6 MaxV S6P02-00 S6P52-00 S6 Pure S6V50-00 S6V52-00 S7 S7+ S7M52-00 S7 MaxV S7 MaxV+ S7 MaxV Plus S7 MaxV Ultra S7MP52-00 S7MU52-00 S7 Pro Ultra S7PU02-00 S8 S8+ S8+ S8 Plus S8 Pro Ultra S8 Pro Ultra S8PU52-00 S50 S51 S55 S70 S80ULT S402-00 S452-00 S502-00 S512-00 S552-00 S602-00 S652-00 S702-00 S752-00 S802-00 S852-00 T4 T7S T7S Plus T60 T61RR T65 T70 T71RR Xiaowa E30 Xiaowa E35 XM200008 XM200009

Replaces Part Numbers

400-900-1755 BJSTS0002-2016 BRR-1P4S-2600S BRR-2P4S-5200D

Technical Specifications

Voltage14.4V
Amp Hours5200mAh
Capacity5200mAh
Rate74.88Wh
Net Weight434g /15.31 oz
Gross Weight614g /21.66 oz
Approximate Weight614g /21.66 oz
Dimension 142.10 x 43.70 x 44.30mm

Product Highlights

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

Frequently Asked Questions

My Roborock runs fine but loses suction halfway through a clean — the battery indicator isn't even low yet. What's happening?

This is motor voltage sag under elevated current draw, not a failing battery. A restricted filter or tangled brush roll forces the motor to pull more current than rated, causing the BMS to throttle output to protect the cells — suction drops even though charge state still reads mid or high. Clean the filter thoroughly and clear the brush roll of any hair or debris. Retest on the same floor surface and confirm suction holds consistent from start to finish.

My replacement Roborock battery installed fine but the dock isn't charging it — the indicator just blinks and nothing happens.

Some Roborock chargers verify a BMS handshake before initiating the charge cycle — if the handshake packet isn't recognised, the dock stalls and the indicator blinks rather than showing a solid charge state. First, reseat the robot firmly on the dock and confirm the charging contacts are clean and making full contact on both sides. If the blink pattern continues, remove the robot from the dock for 60 seconds, then reseat it — this resets the handshake negotiation. Check that resting pack voltage is above 10V before docking; cells below that threshold may require a bench charge to recover enough voltage for the dock to accept them.

The Roborock battery I've had for about a year now doesn't last as long as it did when new — it was always left on the dock between cleans. Is the battery worn out or is something else going on?

Continuous dock contact is the most common cause of accelerated capacity fade on Roborock units. The dock applies a low-level trickle charge whenever the robot sits on it, and Li-ion cells held at a sustained high state-of-charge degrade faster than cells cycled between charge and partial discharge. After roughly a year on permanent dock contact, measurable capacity loss is expected — it is not a manufacturing defect. Going forward, charge the replacement pack to full, remove the robot from the dock, and only return it for a charge when the battery indicator drops to one bar.

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