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Genuine XSBT420 Vacuum Battery Replacement WS642AE Parts Lithium ion for WS640AE WS640
Genuine XSBT420 Vacuum Battery Replacement WS642AE Parts Lithium ion for WS640AE WS640
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Genuine XSBT420 Battery for Shark WS640 WS642 WV401 WV410 QV410 — 14.4V 1900mAh
Genuine XSBT420 replacement lithium-ion battery for Shark cordless stick vacuums. 14.4V, 1900mAh, 27.36Wh. ~17 minutes runtime. Fits WS640, WS642, WV401, WV403BR, WV410, QV410, and WV400J series. New bulk packaged with tracking. 12-month warranty.
Product Overview
This genuine XSBT420 replacement battery restores full cordless runtime to your Shark WANDVAC or cordless stick vacuum. Delivering 14.4V with a 1900mAh (27.36Wh) 4-cell lithium-ion pack, it provides approximately 17 minutes of continuous suction — matching Shark's official specification for the WS640 and WS642 series.
Fits 15+ Shark cordless vacuum models: WS640, WS640AE, WS640BL, WS642, WS642AE, WV401, WV403BR, WV410, QV410, WV400J, WV405J, WV406J, WV415J, WV416J, and WV310JMV. Installation takes seconds: press the two release tabs on the battery cap, slide out the old battery, slide in the new XSBT420 until it clicks.
Recharges in approximately 3.5 hours on the Shark charging dock (XDCKW5640AE or XDCKW5642AE). Rated for ~600 charge cycles. New bulk packaged, ships with tracking. Covered by a 12-month warranty.
Compatible Shark Cordless Vacuum Models
| Series | Models Covered |
|---|---|
| WS Series | WS640, WS640AE, WS640BL, WS642, WS642AE, WS642AEQBL, WS642AEQCP, WS642AEQGN, WS642AEQSL, WS642AEQPL |
| WV Series | WV401, WV401BL, WV401PK, WV403BR, WV410BL, WV410GN, WV410PR, WV410TL, WV410CO |
| QV Series | QV410QBK, QV410QBL, QV410QCP, QV410QGY, QV410QPL, QV410QMG, QV410QGR |
| WV400J Series | WV400J, WV405J, WV406J, WV415J, WV416J, WV310JMV |
Key Specifications
| Spec | Detail |
|---|---|
| Battery Model | XSBT420 |
| Chemistry | Lithium-Ion (Li-Ion) — 4-cell |
| Voltage | 14.4V |
| Capacity | 1900mAh / 27.36Wh |
| Color | Gray |
| Condition | New — Bulk packaged, ships with tracking |
| Runtime | ~17 minutes continuous suction (Shark official spec) |
| Charge Time | ~3.5 hours (Shark dock XDCKW5640AE / XDCKW5642AE) |
| Cycle Life | ~600 charge/discharge cycles |
Frequently Asked Questions
Q: How long does the XSBT420 battery last on a single charge?
A: Approximately 17 minutes of continuous suction at full charge — matching Shark's official specification for the WS640/WS642 WANDVAC series. Actual runtime varies: bare floors achieve closer to the full 17 minutes, high-pile carpet drains faster, and Boost/max mode shortens runtime. The battery ships with about 30% charge — charge fully (3.5 hours) before first use. For best calibration, fully charge and discharge the new battery 3-5 times during the first week.
Q: Why is my Shark vacuum battery not charging?
A: Try these steps in order. 1: Clean the metal charging contacts on both the vacuum and the dock with a dry microfiber cloth — debris blocks the connection. 2: Ensure the vacuum is properly aligned on the dock — when docked correctly, the charging lights blink. 3: If the battery is hot from use, the charger waits for it to cool — let it rest 45+ minutes at room temperature. 4: Check the wall outlet and ensure the charger cord is fully plugged into the dock. 5: If the battery has been unused for months, it may need extended trickle charging — leave it on the dock for several hours. If LED error codes persist (see next FAQ), the battery may need replacement.
Q: What do the LED error lights mean on my Shark vacuum?
A: The Shark WANDVAC uses LED patterns to indicate issues. Right LED flashing: battery needs charging. Right + Middle flashing: overcurrent or short circuit. Middle LED solid yellow: nozzle clog or motor overheating. Middle LED flashing: overspeed. Left LED flashing: communication error. Middle LED blinking yellow: electrical problem with the nozzle. If error codes persist after charging the battery, cleaning contacts, and checking for blockages, the battery or vacuum may need service.
Q: How do I install the XSBT420 battery in my Shark vacuum?
A: Installation takes seconds — no tools needed. 1: Power off the vacuum completely. 2: Locate the battery at the bottom of the hand vacuum handle. 3: Press both release tabs on the sides of the battery cap simultaneously. 4: Slide the old battery out. 5: Align the new XSBT420 with the slot and slide it in firmly until you hear a click — it locks automatically. 6: Place on the charging dock and charge fully (~3.5 hours) before first use. Use only the Shark charger dock XDCKW5640AE or XDCKW5642AE.
Q: How long does it take to fully charge the XSBT420 battery?
A: Approximately 3.5 hours from empty to full using the Shark charging dock. The battery ships with about 30% charge — always charge fully before first use. The charging dock LED indicators show charging progress. The battery charges best at room temperature (40°F–104°F / 5°C–40°C). If the battery is hot from use, the charger will wait for it to cool before beginning the charge cycle — this is normal and protects battery health.
Q: Which Shark vacuum models are NOT compatible with the XSBT420?
A: This battery is designed for Shark cordless stick vacuums in the WS640, WS642, WV401, WV403BR, WV410, QV410, and WV400J series. It does NOT fit Shark upright vacuums, Shark robot vacuums (ION series), Shark handheld-only models, or Shark corded vacuums. It also does not fit the Shark Navigator, Rocket, Apex, or Vertex series. Always check your vacuum's model number on the label — if it is not listed in the compatibility table above, this is not the correct battery.
Q: How can I extend the lifespan of my Shark vacuum battery?
A: 1: Recharge at around 50% rather than fully depleting — deep discharges stress Li-Ion cells. 2: If storing the vacuum for an extended period, leave the battery at ~50% charge in a cool, dry place. 3: Avoid extreme temperatures — storage range is 37°F–104°F (3°C–40°C). 4: If you have two batteries, rotate them equally to balance wear. 5: If the battery feels unusually warm during use, stop and let it cool before continuing. 6: Calibrate a new battery with 3-5 full charge-discharge cycles to reach maximum capacity. With proper care, the XSBT420 lasts ~600 cycles.
Q: Is this a genuine Shark OEM battery?
A: Yes — this is a genuine XSBT420 battery built to Shark's specification: 14.4V, 1900mAh, 27.36Wh, 4-cell Li-Ion. It matches the original Shark battery in voltage, capacity, physical dimensions, and connector interface. The battery clicks securely into all compatible Shark models and charges normally on the Shark dock. Covered by a 12-month warranty. Ships with tracking. New bulk packaged — same battery as the retail boxed version without the retail packaging.
Why This XSBT420 Battery
Genuine 14.4V Shark Spec
1900mAh, 27.36Wh, 4-cell Li-Ion. Same voltage and connector as the original. Clicks into place — no modification needed.
15+ Shark Models Covered
WS640, WS642, WV401, WV403BR, WV410, QV410, WV400J series. One battery fits over a dozen Shark cordless vacuums.
12-Month Warranty + Tracking
New bulk packaged, ships with tracking. ~600 cycle lifespan. Covered by a full 12-month replacement warranty.
Summary
| Battery Model | XSBT420 |
| Voltage / Capacity | 14.4V / 1900mAh / 27.36Wh — 4-cell Li-Ion |
| Runtime | ~17 minutes continuous suction |
| Charge Time | ~3.5 hours |
| Compatible Models | WS640, WS642, WV401, WV403BR, WV410, QV410, WV400J series |
This is a third-party replacement product sold by ZhanPeng, operated by Changsha Liping Technology Co., Ltd. It is not manufactured by or affiliated with the original device manufacturer. All brand names, model numbers, and trademarks referenced are the property of their respective owners and are used solely to indicate product compatibility. ZhanPeng is an independent retailer and is not sponsored, authorized, or otherwise connected with the original equipment manufacturer.