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Robot Vacuum 18V · 3.2Ah
Xiaomi TW01-5S 18V 3.2Ah
Xiaomi Roborock Battery Replacement

Xiaomi TW01-5S 18V 3.2Ah Roborock S-Series Robot Vacuum Replacement Battery

Drop-in Xiaomi robot vacuum battery replacement for the Roborock S-series platform. The TW01-5S is an 18V 3.2Ah pack built on high-capacity 3200mAh 18650 cells (5S1P), verified against the original Roborock battery with BMS handshake on the genuine charging dock.

Voltage18V
Capacity3.2Ah
Cell Type18650 cells
Configuration5S1P
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Overview

Drop-in Xiaomi robot vacuum battery replacement for the Roborock S-series platform. The TW01-5S is an 18V 3.2Ah pack built on high-capacity 3200mAh 18650 cells (5S1P), verified against the original Roborock battery with BMS handshake on the genuine charging dock.

Manufactured by Dongguan Ruineng New Energy (Nuranu) — a high-tech custom battery factory since 2012 — the TW01-5S is produced under a fully automated assembly line with 100% aging and end-of-line testing. It is engineered for OEM clients, robot vacuum repair distributors, and private-label brands that need OEM-equivalent fit and fade-free runtime at factory-direct pricing.

Xiaomi TW01-5S 18V 3.2Ah view 1Xiaomi TW01-5S 18V 3.2Ah view 2Xiaomi TW01-5S 18V 3.2Ah view 3Xiaomi TW01-5S 18V 3.2Ah view 4

Compatible Xiaomi Models

  • Xiaomi Roborock S-series robot vacuums
  • Roborock S5 / S6 / S7 platform
  • Xiaomi Mi Home Roborock robotic vacuum platform

Target Applications

  • Xiaomi Roborock S-Series Owners: A direct, fade-free Xiaomi Roborock S-Series battery replacement that restores full runtime when the original pack ages.
  • Robot Vacuum Repair & Service Shops: OEM-matched fit and verified charger handshake make the TW01-5S an easy stock item for Xiaomi Xiaomi Roborock S-Series repairs.
  • Private-Label & E-commerce Sellers: Sourced with your branding and retail-ready packaging (blister / color box) for Amazon FBA and marketplace resale.

Core Technical Advantages

1. OEM-Matched Xiaomi Roborock S-Series Fit

Injection-molded shell and latch geometry match the original Xiaomi Roborock S-Series pack (Xiaomi Roborock S-series platform) for a true drop-in fit.

2. 18650 Cells, True 3.2Ah

Grade-A 18650 cells in a 5S1P configuration deliver a genuine 3.2Ah at 18V — matched and aged for stable, fade-free runtime.

3. Verified BMS Handshake

BMS flashed with Xiaomi Roborock S-Series-specific firmware charges and reports correctly on the genuine Xiaomi charger — resolving 'not charging' faults of worn original packs.

Product Video

Factory assembly line, BMS testing, and TW01-5S fit demonstration footage. Contact sales for additional product videos.

Technical Specifications

FeatureSpecification
Replacement ModelTW01-5S
Compatible Robot VacuumXiaomi Roborock S-Series
OEM Series / CodesXiaomi Roborock S-series platform
Nominal Voltage18V
Rated Capacity3.2Ah
Cell Type18650 · 3200mAh
Configuration5S1P
Housing ColorBlack
Proprietary MoldYes (in-house)
Net WeightConfirmed at order
Battery DimensionsConfirmed at order
Qty per Carton40 pcs
Carton Gross WeightConfirmed at order

Packaging & Wholesale Logistics

The TW01-5S ships in retail-ready packaging (blister or color box) engineered for marketplace resale and international freight. Every batch ships with UN38.3 transport test report, IEC 62133 safety certificate, MSDS, and CE Declaration of Conformity for smooth customs clearance in EU, US, UK, AU, and JP markets.

MOQ
100 units (catalog) · 500 units (private label)
Lead Time
25–35 days standard · 18–22 days expedited
Payment
30% T/T deposit + 70% against B/L
Warranty
12 months

Frequently Asked by Distributors

Does the TW01-5S fit the Xiaomi Roborock S-series robot vacuum?
Yes. The TW01-5S is a Xiaomi / Roborock robot vacuum battery replacement for the Roborock S-series platform — a true 18V 3.2Ah pack on high-capacity 3200mAh cells with OEM-matched fit.
What is the MOQ for the TW01-5S replacement battery?
Standard MOQ is 100 units for the TW01-5S. Paid samples of 1–10 units are available for fit and BMS-handshake validation before a production order. Private-label or custom-spec runs start at 500 units.
Is the TW01-5S drop-in compatible with the original Xiaomi charger or dock?
Yes. The TW01-5S BMS is flashed with model-specific firmware so it charges and reports correctly on the genuine Xiaomi charger — state-of-charge, authentication, and safety lockouts behave like the OEM Xiaomi Roborock S-Series pack. Validated on 100% of units at end-of-line.
How do I replace the battery in my Xiaomi Roborock S-Series?
Replacing the Xiaomi Roborock S-Series battery is straightforward: power off the robot vacuum, release the battery latch or clip, remove the old pack, and fit the TW01-5S until it seats. No tools or modification needed — it charges on your genuine Xiaomi charger or dock.
How long does the TW01-5S battery last per charge?
The TW01-5S delivers a true 3.2Ah at 18V, matching or exceeding original-pack runtime. Actual runtime depends on power mode and accessory. Cells are matched and aged so the pack holds capacity over its full cycle life.
Why is my Xiaomi battery not charging or not holding charge — does a replacement fix it?
A pack that won't hold charge or won't charge usually means end-of-life cells or a failed BMS. A new TW01-5S with fresh Grade-A cells and a fresh BMS resolves 'not charging' and 'not holding charge' faults caused by a worn-out original pack.
Are these genuine Xiaomi batteries or replacements?
The TW01-5S is a high-quality aftermarket replacement — not an OEM Xiaomi-branded pack. It is built with Grade-A tier-1 cells, a model-specific BMS, and OEM-matched fit, validated against an original Xiaomi Roborock S-Series pack on 100% of units, and backed by a 12-month warranty.
What cells and configuration does the TW01-5S use?
The TW01-5S uses Grade-A 18650 cells (3200mAh each) in a 5S1P configuration for a nominal 18V and a true rated capacity of 3.2Ah. Cells are matched by capacity (±20 mAh) and internal resistance (±5 mΩ) before assembly. Preferred cell brand (Samsung / LG / Panasonic / BAK) can be specified at order.
What is the warranty on the TW01-5S?
All TW01-5S replacement packs carry a 12-month warranty against manufacturing defects. Every batch ships with UN38.3 test report, IEC 62133 certificate, MSDS and CE Declaration of Conformity for smooth customs clearance worldwide.
How is the TW01-5S packed for shipping?
The TW01-5S ships 40 pcs per master carton. Battery dimensions None. Every batch ships with full UN38.3 / IEC 62133 / CE documentation.

Need a Custom Quote or Technical Details?

Our engineering team is ready to discuss specifications, certification, MOQ, and OEM / private-label customization for the TW01-5S.

✉ Email Sales 📱 WhatsApp ☎ +86 13823274651

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