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14.8V Xiaomi Mi T200 MJST1S Replacement Battery 3000mAh

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From $65.99 USD $81.99
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Fits Xiaomi Mi T200 vacuum models MJST1S, MJST1S 2 Pro, MJST1SHW, and MJSTS; replaces OEM part numbers 260MX2, 260S-INR-MH1-4S1P, and D099-4S2P.
This 14.8V 3000mAh cell delivers the full voltage and capacity the motor needs to sustain cleaning power on carpet and hard floors without early cutoff.
Connector slides into the battery slot on the handle with a vertical orientation and locks with a press-fit tab — no tools required.
We tested the BMS on first insertion and verified no fault light appeared during initial charge on the Xiaomi dock; the cell accepted current without delay.
Remove this battery from the dock immediately after reaching full charge — continuous trickle charging degrades capacity faster than charge-and-disconnect cycles in cordless vacuums.
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.

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Voltage

14.8V

Amp

3000mAh

Xiaomi MJST1S Series — 14.8V Li-ion Replacement Battery (260MX2)

This 14.8V, 3000mAh (44.4Wh) Li-ion battery fits the Xiaomi Mi T200 cordless stick vacuum and related MJST1S variants. It replaces OEM part numbers 260MX2, 260S-INR-MH1-4S1P, and D099-4S2P. Compatible models include the MJST1S, MJST1S 2 Pro, MJST1SHW, and MJSTS.

  • MJST1S family compatibility: These models share the same 14.8V four-cell lithium architecture, connector pinout, and BMS communication protocol. Swapping within this family does not require firmware changes or tool modifications.
  • Bench tested on actual hardware: We cycled this battery through sustained suction loads on a restricted-filter rig. The BMS held cutoff at the correct undervoltage threshold and recovered cleanly after rest, with no false overcurrent trips on motor start.
  • Dock charging behaviour on the MJST1S: Remove the vacuum from the charging dock once the indicator shows full. The MJST1S dock does not terminate charge aggressively — leaving the battery seated for days at a time accelerates capacity fade faster than normal cycling would.

Suction dropping before the battery indicator reaches low

The MJST1S motor draws significantly more current when airflow is restricted — a partially blocked filter can push draw above the BMS current threshold before the battery is genuinely depleted. The BMS reads this spike as low voltage under load and begins throttling motor speed. The battery indicator still shows charge because resting voltage is adequate. Clean or replace the HEPA filter first, then test — suction should hold steady to near the end of the charge cycle.

Motor cutting out mid-clean and then recovering after a few seconds

This is a BMS overcurrent trip, not a dead battery. When the vacuum hits a carpet obstruction or a heavily clogged filter, the motor labours and draws a sustained current spike. The BMS cuts power to protect the cells, then resets after a brief cooldown. If this happens repeatedly, check the filter and brush roll for blockage before assuming the battery is faulty. A clear airpath brings draw back within the 14.8V system's rated current envelope and stops the trips.

Compatible Models

MJST1S MJST1S 2 Pro MJST1SHW MJSTS MJSTS1 Mop 2 Mop 2 LDS 2nd

Replaces Part Numbers

260MX2 260S-INR-MH1-4S1P D099-4S2P

Technical Specifications

Voltage14.8V
Amp Hours3000mAh
Capacity3000mAh
Rate44.4Wh
Net Weight260g /9.17 oz
Gross Weight440g /15.52 oz
Approximate Weight440g /15.52 oz
Dimension 144.30 x 43.10 x 45.60mm

Product Highlights

  • Brand: Xiaomi
  • 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 Xiaomi MJST1S loses suction well before the battery light goes red — is the new battery faulty or is something else causing this?

The battery is almost certainly fine. A partially blocked filter forces the motor to draw more current than rated, which causes the BMS to throttle output before the actual charge is depleted. Clean the HEPA filter and check the brush roll for wrapped debris, then run a full charge cycle. If suction holds consistently after that, the filter was the cause — not the cell.

The vacuum cuts out for a few seconds mid-clean, then restarts on its own — what is triggering that?

That is a BMS overcurrent trip. The motor hits a sustained high-draw event — usually a carpet snag or restricted airflow — and the BMS cuts power momentarily to protect the cells. It resets automatically once current drops. Clear any blockage from the brush roll and filter, then test on a flat hard floor. If the cut-outs stop, airflow restriction was the trigger, not a cell fault.

The replacement battery is sitting on the dock but the charging indicator never moves — how do I get it to start charging?

Some chargers expect a BMS handshake before initiating charge, and a deeply discharged or newly installed cell may not respond immediately. Remove the battery from the dock, wait 60 seconds, then reseat it firmly and reconnect the dock to power. If the indicator still does not respond, check that the dock pins are clean and making full contact — corrosion on the dock contacts is a common cause of a failed handshake on the MJST1S charging circuit.

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