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Kastar Dyson V8 Replacement Battery vs Dyson V11 Replacement Battery

These are not interchangeable: the Kastar pack fits Dyson V8 models, and the BatteryMall pack fits V11 and later SV-series vacuums with the click-in battery slot. Buy the one that matches your vacuum, since neither will work in the other's machine. On paper the V11 pack offers more capacity and runtime, and its rating is higher from more buyers, but the Kastar is a straightforward V8 replacement with a stated 12-month warranty. Check the part number printed on your old battery and the slot style before ordering.

  • Choose the Kastar if you own a Dyson V8 Animal, Fluffy or Absolute and your old pack carries a 215967, 215681 or 967834 number.
  • Choose the BatteryMall pack if you own a V11 or SV15/SV16/SV17/SV22/SV29/SV47 with a click-in battery slot, not the screw-in SV14 type.

Prices

  • Kastar Dyson V8 Replacement Battery: $29.99 at Amazon (last seen Nov 10)
  • Dyson V11 Replacement Battery: $69.99 at Amazon (checked today)
  • Difference: the Kastar Dyson V8 Replacement Battery is $40.00 cheaper than the Dyson V11 Replacement Battery at the latest prices (Nov 10 and Nov 12)
Kastar
Kastar Battery Replacement for Dyson V8 Animal, Cordless Stick Vacuum, V8 Fluffy, V8 Absolute

Kastar Dyson V8 Replacement Battery

Kastar Battery Replacement for Dyson V8 Animal, Cordless Stick Vacuum, V8 Fluffy, V8 Absolute

4.4(25 ratings)
$29.99at AmazonChecked Nov 10
See all prices and details
Visit Amazon

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Pros
  • Fits the whole V8 line, including Animal, Fluffy and Absolute
  • Cross-references several Dyson part numbers, so matching is easier
  • Stated 40 minutes of fade-free runtime
  • 12-month warranty
Cons
  • Lower capacity than the V11 pack
  • No stated battery management system
  • Only 25 ratings so far
  • Pack only; no charger or filter included
R
Replacement Battery For Dyson Vacuum Cleaner V11 SV15 SV16 SV17 SV22 SV29 SV47

Dyson V11 Replacement Battery

Replacement Battery For Dyson Vacuum Cleaner V11 SV15 SV16 SV17 SV22 SV29 SV47

4.8(50 ratings)
$69.99at AmazonChecked 6 h ago
See all prices and details
Visit Amazon

Store links may earn us a commission. As an Amazon Associate, Deal.ai earns from qualifying purchases.

Pros
  • Higher capacity and longer stated runtime
  • Built-in BMS protects against overcharge and short circuits
  • Grade-A cells claimed to hold steady suction
  • Click-in design needs no tools
  • Higher rating from more buyers
Cons
  • Does not fit V8 vacuums
  • Will not fit the V11 SV14 screw-in slot
  • Listing bundles accessories that may not ship with the battery
  • Cell origin differs from the Malaysia-made claim, so verify what arrives

What separates them

Kastar Dyson V8 Replacement BatteryDyson V11 Replacement Battery
Compatible vacuumDyson V8 range: Animal, Fluffy, Absolute, Animal ExclusiveDyson V11 and SV15, SV16, SV17, SV22, SV28, SV29, SV47
Capacity2800 mAh / 60.48 Wh4500 mAh / 113.4 Wh
Stated runtime40 minutes, fade-free60 minutes
Battery managementNot stated; standard Li-ion packBuilt-in BMS for overcharge, over-discharge and short-circuit protection
Fitting styleV8 slide-in pack; check connector shape and polarityClick-in button slot only; does not fit screw-in SV14
Warranty12 months1 year
Buyer feedback4.4 from 25 ratings4.8 from 50 ratings
In the boxBattery pack onlyBattery pack; listing also mentions charger, filter and floor brush

Price history

$69.99$29.99
Nov 5Nov 12
  • Kastar Dyson V8 Replacement Battery: lowest $29.99 on Nov 10 at Amazon.
  • Dyson V11 Replacement Battery: lowest $69.99 on Nov 12 at Amazon.

Prices at every store

Kastar Dyson V8 Replacement Battery

  • WalmartNew

    In stockSold by Kastar USA IncReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $39.99Free shippingChecked 4 h ago
    Visit Walmart
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $29.99Checked Nov 10
    Visit Amazon
  • Rocket DistributingNew

    Availability unknown

    $54.00Checked Nov 5
    Visit Rocket Distributing
  • ExtraBattNew

    Availability unknown

    $66.99Checked Nov 5
    Visit ExtraBatt

Store links may earn us a commission.

All 6 stores and price history →

Dyson V11 Replacement Battery

  • BatteryMall.comNew

    In stockReturn policy

    $75.03Checked 6 h ago
    Visit BatteryMall.com
  • eBayPre-owned

    Availability unknownSold by pippapnscrapllc

    $44.50+ $22.99 shippingChecked 5 h ago
    Visit eBay
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $69.99Free shippingChecked 6 h ago
    Visit Amazon

Store links may earn us a commission.

All 3 stores and price history →

Specs compared

SpecKastar Dyson V8 Replacement BatteryDyson V11 Replacement Battery
Voltage21.6 V22 V
Runtime40 minutes (fade-free cleaning)60 min
size1-PACK—
colorBlack—
Accessory TypeBattery—
Compatible BrandDyson—
Compatible Vacuum TypeCordless vacuum—
Compatible SeriesAbsolute, Animal—
Count1—
Included ComponentsBattery Pack Only—
Battery Capacity2800 mAh—
Battery TypeLi-ion—
Show all 31 specsShow fewer specs
SpecKastar Dyson V8 Replacement BatteryDyson V11 Replacement Battery
Run Time40 minutes (fade-free cleaning)—
Wattage60.48 Wh—
Amperage2.8 Ah—
Lifespan12 months (warranty)—
Height146.80 mm—
Length146.46 mm—
MaterialPlastic—
Width80.70 mm—
Depth120.20 mm—
Weight543.8 g—

What reviewers say

Kastar Dyson V8 Replacement Battery

  • 4.4 / 525 ratings

Rated 4.4 out of 5 from 25 ratings, buyers mostly report the pack fits V8 models and restores run time at a low price. Complaints center on units that lose capacity quickly or arrive with a mismatched connector.

What people mention
  • FitMixedMany buyers say it clicks into V8 models fine, but some report connector or polarity mismatches.
  • Battery lifeMixedRun time comes back after the swap, though some owners say capacity drops off sooner than with the Dyson pack.
  • ValuePraisedBuyers like getting V8 run time back for a fraction of the OEM price.
  • BuildMixedThe pack feels close to the original in weight and shape, but a few units failed within the warranty period.

Dyson V11 Replacement Battery

  • 4.8 / 550 ratings

Buyers rate it 4.8 out of 5 and describe long runtime per charge, steady suction and quiet operation. Several note it recharges overnight and is ready by morning.

What people mention
  • RuntimePraisedBuyers say one charge covers a whole-room clean.
  • SuctionPraisedOwners report no drop in suction during use.
  • ChargingPraisedIt recharges overnight and is ready by morning.
  • NoisePraisedBuyers describe it as quiet in use.

Questions and answers

Will the Kastar battery fit my V8 Absolute?
Yes, if your vacuum is a V8 and the old pack matches one of the listed Dyson numbers such as 215967-01/02 or 215681. Compare the connector shape, wire arrangement and polarity with your original before ordering.
Can I use the V11 pack in a V8?
No. The V11 pack is built for V11 and SV-series vacuums with a click-in slot, and it will not seat or connect in a V8.
Which lasts longer per charge?
The V11 pack, on its stated figures: 4500 mAh and 60 minutes against 2800 mAh and 40 minutes for the Kastar. Real runtime depends on the power mode you use.
Is the V11 pack worth stepping up to?
Only if you own a compatible V11-family vacuum. It offers more capacity, a battery management system and stronger buyer ratings; for a V8 owner it is simply the wrong fit.
Do both come with a warranty?
Yes, both state a 12-month or 1-year warranty. Keep your order record, since replacement claims usually need proof of purchase.
Will either pack restore original suction?
A healthy pack restores normal voltage and suction for its model. The V11 pack claims steady output from grade-A cells; the Kastar makes no such claim beyond its 21.6V rating.

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More comparisons

  • Kastar Battery Replacement for Dyson V8 Animal, Cordless Stick Vacuum, V8 Fluffy, V8 Absolute vs Dyson V8 Vacuum Battery Replacement 21.6V 6500mAh 140Wh
  • Kastar Battery Replacement for Dyson V8 Animal, Cordless Stick Vacuum, V8 Fluffy, V8 Absolute vs LRSE Replacement Battery for Dyson V8
  • Dyson V8 Vacuum Battery Replacement 21.6V 6500mAh 140Wh vs Replacement Battery For Dyson Vacuum Cleaner V11 SV15 SV16 SV17 SV22 SV29 SV47
  • Kastar Battery Replacement for Dyson V8 Animal, Cordless Stick Vacuum, V8 Fluffy, V8 Absolute vs Dinosoo Replacement for Dyson V7 Li-ion Battery
  • Kastar Battery Replacement for Dyson V8 Animal, Cordless Stick Vacuum, V8 Fluffy, V8 Absolute vs Dinosoo Replacement Battery for Dyson V8
  • Kastar Battery Replacement for Dyson V8 Animal, Cordless Stick Vacuum, V8 Fluffy, V8 Absolute vs 21.6V 6.5Ah 140Wh V8 Battery Replacement for Dyson V8 Battery 21.6V 2800mAh 65Wh 967834-05 967834-08 V8 Battery Absolute Animal Fluffy Motorhead Carbon Fiber Cordless Handheld Vacuum V8 Battery
  • Kastar Battery Replacement for Dyson V8 Animal, Cordless Stick Vacuum, V8 Fluffy, V8 Absolute vs Fanshara Replacement Battery for Dyson V8
  • 8000mAh V11 Click-in Type Replacement Battery for Dysom V11 Absolute/ Animal/ Extra/ Torque Drive/ Outsize/Fluffy/ V15/ SV15/ SV22/ SV47/ 970425-01 Cordless Vacuum Cleaner vs Kastar Battery Replacement for Dyson V8 Animal, Cordless Stick Vacuum, V8 Fluffy, V8 Absolute

Buying guides that pick them

  • Best replacement batteries for Dyson cordless vacuums
Set
No
—
Bagged / Bagless—Bagless
Filters—HEPA
Charge Time—3.5 hrs
Capacity—0.5 L
Included Accessories—Charger, Filter, Floor Brush
Country / Region Of Manufacture—Malaysia
Cord Type—Cordless
Power—115 W