Find robot vacuum replacement battery information by exact model. This battery compatibility reference covers Roborock, Dreame, Roomba and Ecovacs. It separates manufacturer-listed replacement items from factory battery capacity: matching voltage, capacity or connector shape alone does not prove that a battery fits.
Original entries checked: 2 October 2026. Combo j5/j5+ and j6/j6+ additions checked on 3 October 2026. Sources and their regional scope appear with each entry. A blank replacement number means it has not been verified here.
Not charging? Check the station first
A robot that is offline, badly seated, outside its permitted charging temperature or using an unpowered station can appear to have a failed battery. Start with the matching charging checks below. This reference does not diagnose a failed battery.
Stop if you see swelling, leaking, unusual heat, a burning smell or damaged wiring. Do not charge, puncture or open a damaged battery pack.
Roborock Qrevo Curv replacement battery compatibility
Replacement item not yet verified
Roborock Qrevo Curv battery reference
Factory specification: 6400 mAh
Replacement part number: Not verified
Source: US product specifications
The Qrevo Curv name must match exactly; Curv S5X, CurvX and Curv 2 Flow are separate variants.
This is the installed battery specification, not a compatible spare recommendation. Ask the manufacturer to match an approved replacement to your exact model, region and serial number.
Roborock Qrevo Curv not charging: checks before battery replacement →
Start Roborock Qrevo Curv charging diagnosis →
Roborock Qrevo Curv brushes, filters and other replacement parts → · Back to model list ↑
Roborock Q Revo replacement battery compatibility
Replacement item not yet verified
Roborock Q Revo battery reference
Factory specification: 14.4 V / 5200 mAh (typical)
Replacement part number: Not verified
Source: FCC manual, model QX0PEA
The cited manual specifies robot model QX0PEA. Match the rating label; a family name is not a replacement battery number.
This is the installed battery specification, not a compatible spare recommendation. Ask the manufacturer to match an approved replacement to your exact model, region and serial number.
A charging-specific guided route for this exact model is not available here yet. Use the manufacturer manual or support for charging instructions; do not substitute another model’s route.
Roborock Q Revo brushes, filters and other replacement parts → · Back to model list ↑
Roborock S8 replacement battery compatibility
Replacement item not yet verified
Roborock S8 battery reference
Factory specification: 14.4 V / 5200 mAh (typical)
Replacement part number: Not verified
Source: FCC manual, model S80ULT
The cited manual specifies S80ULT. Do not apply its specification automatically to S8 MaxV Ultra or other S8 variants.
This is the installed battery specification, not a compatible spare recommendation. Ask the manufacturer to match an approved replacement to your exact model, region and serial number.
A charging-specific guided route for this exact model is not available here yet. Use the manufacturer manual or support for charging instructions; do not substitute another model’s route.
Roborock S8 brushes, filters and other replacement parts → · Back to model list ↑
Dreame X40 Ultra replacement battery compatibility
Replacement item not yet verified
Dreame X40 Ultra battery reference
Factory specification: 6400 mAh
Replacement part number: Not verified
Source: Global product specifications
A shared capacity with X50 Ultra does not establish a shared battery.
This is the installed battery specification, not a compatible spare recommendation. Ask the manufacturer to match an approved replacement to your exact model, region and serial number.
Dreame X40 Ultra not charging: checks before battery replacement →
Start Dreame X40 Ultra charging diagnosis →
Dreame X40 Ultra brushes, filters and other replacement parts → · Back to model list ↑
Dreame X50 Ultra replacement battery compatibility
Replacement item not yet verified
Dreame X50 Ultra battery reference
Factory specification: 6400 mAh
Replacement part number: Not verified
Source: Global product specifications
Use the full robot model and region. Check off-peak charging settings before treating a charging pause as a failure.
This is the installed battery specification, not a compatible spare recommendation. Ask the manufacturer to match an approved replacement to your exact model, region and serial number.
Dreame X50 Ultra not charging: checks before battery replacement →
Start Dreame X50 Ultra charging diagnosis →
Dreame X50 Ultra brushes, filters and other replacement parts → · Back to model list ↑
Dreame L10s Ultra replacement battery compatibility
Replacement item not yet verified
Dreame L10s Ultra battery reference
Factory specification: 5200 mAh
Replacement part number: Not verified
Source: Global product specifications
This entry is for the original L10s Ultra; Gen2, Gen3 and Pro Ultra are different model names.
This is the installed battery specification, not a compatible spare recommendation. Ask the manufacturer to match an approved replacement to your exact model, region and serial number.
A charging-specific guided route for this exact model is not available here yet. Use the manufacturer manual or support for charging instructions; do not substitute another model’s route.
Dreame L10s Ultra brushes, filters and other replacement parts → · Back to model list ↑
Roomba j7 replacement battery compatibility
Manufacturer-listed replacement
Roomba j7 battery — 4706313
Item number: 4706313
Specification: 2210 mAh, lithium-ion
Source market: Ireland
The official regional listing names Roomba j-series vacuum robots. Match the vacuum-only j7 or j7+ and confirm the item against your installed pack.
Manufacturer-listed replacement
Roomba j7 battery — 4854069
Item number: 4854069
Specification: Lithium-ion; capacity and voltage not stated
Source market: US
McKinley replacement for e/i/j vacuum robots. The listing excludes Combo vacuum-and-mop models. Do not transfer the 2210 mAh capacity from item 4706313 to this item.
Roomba j7 not charging: checks before battery replacement →
Start Roomba j7 charging diagnosis →
Roomba j7 brushes, filters and other replacement parts → · Back to model list ↑
Ecovacs T20 OMNI replacement battery compatibility
Replacement item not yet verified
Ecovacs T20 OMNI battery reference
Factory specification: 5200 mAh, lithium-ion
Replacement part number: Not verified
Source: US product specifications
Confirm T20 OMNI on the robot label. The factory specification does not identify a replacement pack.
This is the installed battery specification, not a compatible spare recommendation. Ask the manufacturer to match an approved replacement to your exact model, region and serial number.
A charging-specific guided route for this exact model is not available here yet. Use the manufacturer manual or support for charging instructions; do not substitute another model’s route.
Ecovacs T20 OMNI brushes, filters and other replacement parts → · Back to model list ↑
Roomba Combo j5 / j5+ replacement battery compatibility
Manufacturer-listed replacement
Roomba Combo j5 / j5+ battery — 4706313
Item number: 4706313
Specification: 2210 mAh, lithium-ion
Source: UK support chart
Checked: 3 October 2026
The battery chart names Combo j5/j5+. Do not apply this entry to Combo j7+.
Confirm the replacement against your robot and regional support before ordering.
Roomba j6 / j6+ replacement battery compatibility
Manufacturer-listed replacement
Roomba j6 / j6+ battery — 4706313
Item number: 4706313
Specification: 2210 mAh, lithium-ion
Source: UK support chart
Checked: 3 October 2026
The battery chart names vacuum-only j6/j6+. Match the exact robot label.
Confirm the replacement against your robot and regional support before ordering.
Roomba Combo j7+ is a separate battery check
Conditional fit — check purchase date
Combo j7+ — item 4844236
iRobot’s US listing names Combo j7+ robots purchased after 15 July 2024. This is not a general replacement for the vacuum-only Roomba j7. If the date or fitted battery is uncertain, confirm with iRobot using the serial number.
Item number: 4844236
Capacity / voltage: Not stated in this product listing
Start Roomba Combo j7+ charging checks →
For a washable mop pad or dust-bin filter, use the separate Combo j7+ parts fit list. For pad cleaning, see Combo j7+ mop care. Neither establishes a battery fault.
How to confirm a replacement battery before ordering
- Record the complete robot model from its external label or app, including the variant and region.
- Complete the matching external charging checks. Save any exact error and the observed charge change.
- Match the manufacturer item number and exact fit list. Ask support when no confirmed replacement is listed here.
- Do not open a battery pack to identify cells or adapt connectors. Follow only the manufacturer’s replacement procedure for your exact robot.
Robot vacuum battery replacement questions
Does the same mAh rating mean the batteries are interchangeable?
No. Capacity is not a part number. Fit must also be established for the exact model and variant by the manufacturer.
Does “not verified” mean no replacement exists?
No. It means this reference has not established an official replacement item and its fit. The manufacturer may provide a service part for your robot.
Can I use instructions for removing a battery for recycling?
Disposal instructions are not automatically a routine repair procedure. Confirm a manufacturer-approved replacement process for your model.
Where are the Roomba battery installation steps?
The official item 4706313 page includes e/i/j-series installation instructions. Confirm the matching model and replacement item first.
If you have a confirmed repair quote, use the repair or replace decision worksheet before buying a battery or a new robot. A charging symptom alone does not establish a failed pack.
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