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Black rectangular lithium-ion battery pack with label showing model 260MX2 14.4V 5200mAh

KingSener

KingSener 260MX2 14.4V 5200mAh vacuum accessory

SKU CH-QZ9S-FKPHG MPN 260MX2

Replacement 14.4V 5200mAh lithium-ion battery for Xiaomi Mijia Vacuum Cleaner Pro 2

  • Battery voltage rating14.4 V
  • Battery capacity5,200 mAh/74.88WH
  • 4V lithium-ion chemistry delivers consistent suction power
  • 5200mAh capacity extends cleaning sessions between charges
  • 88Wh energy rating supports demanding floor-care tasks
  • Direct replacement for Xiaomi Mijia Pro 2 model MJSTS1
  • 100% brand-new cells ensure reliable long-term performance

Replacement battery for Xiaomi Mijia Pro 2

The KingSener 260MX2 is a new lithium-ion power pack built to fit the Xiaomi Mijia Vacuum Cleaner Pro 2 (MJSTS1). It restores cordless operation when the original cell no longer holds a charge. Installers simply swap the old unit for this direct-fit replacement.

Sustained cleaning sessions without voltage sag

Rated at 14.4V and 5200mAh, the pack delivers 74.88Wh of energy for extended run time across multiple rooms. The lithium chemistry maintains steady output during continuous suction cycles rather than fading after a short burst. Users can finish whole-home cleans on a single charge.

Capacity decides if this part fits your routine

The 5200mAh rating is the single figure that determines whether the vacuum can complete your typical cleaning area before needing a recharge. Larger homes or high-pile carpets may demand more capacity than this pack provides. Check your usual run-time needs against the 74.88Wh specification.

How it compares

Measured against everything we stock in Vacuum Parts & Batteries, at today’s prices. Recalculated every night.

Price $32.99
Pricier than about 61% of the 131 comparable items (median $26.99).

Specifications

Product
Brand nameKingSener
Model name260MX2
Part number260MX2
Power
Battery voltage rating14.4 V
Battery capacity5,200 mAh/74.88WH

Questions about this item

How much heat or power draw does the 14.4V 5200mAh battery produce during a full cleaning cycle?

The pack is rated at 14.4V and 5200mAh (74.88Wh). It uses standard Li-ion cells that run cool under normal vacuum loads; no active cooling is required.

Which vacuum model must I already own for this 260MX2 pack to fit and charge?

It is a direct replacement for the Xiaomi Mijia Vacuum Cleaner Pro 2 (model MJSTS1). The connector and form factor match that machine only.

Will the 260MX2 work alongside the original charger and docking station I already use with my Pro 2?

Yes. The battery is built to the same 14.4V specification as the factory pack, so the existing charger and dock recognise and charge it normally.

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