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Cordless Vacuum 21.6V · 3.0/4.0Ah
Shark XBATR640SL 21.6V 3.0/4.0Ah
Shark XBATR620SL 21.6V 2.0/2.5Ah
Shark XSBT600 21.6V 2.0Ah
Shark IONFlex High-Capacity Battery Replacement

Shark XBATR640SL 21.6V 3.0/4.0Ah High-Capacity Replacement Battery for IONFlex

High-capacity Shark vacuum battery replacement for the IONFlex and Rocket Pet Pro platform. The XBATR640SL is a 21.6V pack built on 21700 cells (6S1P), available in 3.0Ah and 4.0Ah for extended runtime, verified against the original Shark battery and fitting IONFlex IF200 / IF250 with OEM-matched latch and BMS handshake.

Voltage21.6V
Capacity3.0/4.0Ah
Cell Type21700 cells
Configuration6S1P
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Overview

High-capacity Shark vacuum battery replacement for the IONFlex and Rocket Pet Pro platform. The XBATR640SL is a 21.6V pack built on 21700 cells (6S1P), available in 3.0Ah and 4.0Ah for extended runtime, verified against the original Shark battery and fitting IONFlex IF200 / IF250 with OEM-matched latch and BMS handshake.

Manufactured by Dongguan Ruineng New Energy (Nuranu) — a high-tech custom battery factory since 2012 — the XBATR640SL is produced under a fully automated assembly line with 100% aging and end-of-line testing. It is engineered for OEM clients, vacuum repair distributors, and private-label brands that need OEM-equivalent fit and fade-free runtime at factory-direct pricing.

Shark XBATR640SL 21.6V 3.0/4.0Ah view 1Shark XBATR640SL 21.6V 3.0/4.0Ah view 2Shark XBATR640SL 21.6V 3.0/4.0Ah view 3Shark XBATR640SL 21.6V 3.0/4.0Ah view 4

Compatible Shark Models

  • Shark IONFlex IF200 / IF250 (extended runtime)
  • Shark Rocket Pet Pro cordless vacuums
  • 21.6V high-capacity IONFlex stick configurations

Target Applications

  • Shark IONFlex (High-Capacity) Owners: A direct, fade-free Shark IONFlex (High-Capacity) battery replacement that restores full runtime when the original pack ages.
  • Vacuum Repair & Service Shops: OEM-matched fit and verified charger handshake make the XBATR640SL an easy stock item for Shark Shark IONFlex (High-Capacity) 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 Shark IONFlex (High-Capacity) Fit

Injection-molded shell and latch geometry match the original Shark IONFlex (High-Capacity) pack (IONFlex IF200 / IF250 (high-capacity) · Rocket Pet Pro) for a true drop-in fit.

2. 21700 Cells, True 3.0/4.0Ah

Grade-A 21700 cells in a 6S1P configuration deliver a genuine 3.0/4.0Ah at 21.6V — matched and aged for stable, fade-free runtime.

3. Verified BMS Handshake

BMS flashed with Shark IONFlex (High-Capacity)-specific firmware charges and reports correctly on the genuine Shark charger — resolving 'not charging' faults of worn original packs.

Product Video

Factory assembly line, BMS testing, and XBATR640SL fit demonstration footage. Contact sales for additional product videos.

Technical Specifications

FeatureSpecification
Replacement ModelXBATR640SL
Compatible VacuumShark IONFlex (High-Capacity)
OEM Series / CodesIONFlex IF200 / IF250 (high-capacity) · Rocket Pet Pro
Nominal Voltage21.6V
Rated Capacity3.0/4.0Ah
Cell Type21700 · 4000mAh
Configuration6S1P
Housing ColorBlack
Proprietary MoldYes (in-house)
Net Weight0.62 kg
Battery Dimensions175.3 × 80.8 × 70 mm
Qty per Carton24 pcs
Carton Gross Weight17.58 kg

Packaging & Wholesale Logistics

The XBATR640SL 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

Is the XBATR640SL the high-capacity replacement battery for Shark IONFlex?
Yes. The XBATR640SL uses 21700 cells for a true 3.0Ah or 4.0Ah — the extended-runtime Shark cordless vacuum battery replacement for IONFlex IF200 / IF250 and Rocket Pet Pro, with OEM-matched latch and contacts.
What is the MOQ for the XBATR640SL replacement battery?
Standard MOQ is 100 units for the XBATR640SL. 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 XBATR640SL drop-in compatible with the original Shark charger or dock?
Yes. The XBATR640SL BMS is flashed with model-specific firmware so it charges and reports correctly on the genuine Shark charger — state-of-charge, authentication, and safety lockouts behave like the OEM Shark IONFlex (High-Capacity) pack. Validated on 100% of units at end-of-line.
How do I replace the battery in my Shark IONFlex (High-Capacity)?
Replacing the Shark IONFlex (High-Capacity) battery is straightforward: power off the vacuum, release the battery latch or clip, remove the old pack, and fit the XBATR640SL until it seats. No tools or modification needed — it charges on your genuine Shark charger or dock.
How long does the XBATR640SL battery last per charge?
The XBATR640SL delivers a true 3.0/4.0Ah at 21.6V, 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 Shark 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 XBATR640SL 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 Shark batteries or replacements?
The XBATR640SL is a high-quality aftermarket replacement — not an OEM Shark-branded pack. It is built with Grade-A tier-1 cells, a model-specific BMS, and OEM-matched fit, validated against an original Shark IONFlex (High-Capacity) pack on 100% of units, and backed by a 12-month warranty.
What cells and configuration does the XBATR640SL use?
The XBATR640SL uses Grade-A 21700 cells (4000mAh each) in a 6S1P configuration for a nominal 21.6V and a true rated capacity of 3.0/4.0Ah. 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 XBATR640SL?
All XBATR640SL 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 XBATR640SL packed for shipping?
The XBATR640SL ships 24 pcs per master carton (17.58 kg gross). Battery dimensions 175.3 × 80.8 × 70 mm. 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 XBATR640SL.

✉ Email Sales 📱 WhatsApp ☎ +86 13823274651

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