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21v Lithium Battery - 4.0 Ah Battery with Charger Adapter Led Indicator Compatible with Leaf Blower

  • Based on 848 reviews
Condition: New
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To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

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Availability: In Stock.
Fulfilled by Amazon

Arrives Saturday, Sep 20
Order within 13 hours and 48 minutes
Available payment plans shown during checkout

Size: 4.0 AH


Features

  • Compatible with More Our batteries are compatible with some major brands, for power tools bl1860b bl1850 bl1840 bl1850b-2 bl1845 bl1830 bl1820 bl1815 lxt-400 series please feel free to contact us for more model information.
  • 21 Volt Lithium Battery Battery voltage: 21v, capacity: 4000ah, type: lithium ion, made of 10 pcs quality lithium ion battery,can provide stable capacity and output.
  • ChargerSupport 100-240v universal standard ac input voltage.1a power adapter,us plug,led indicator to easily see the charging situation.
  • Multi-Protect Safety SystemThis battery is equipped with overload protection, overheat protection & over-discharge protection.
  • Note on BatteryIn order to protect the battery, please do not charge more than 6 hours.Note: Please Fully charge the battery before its first use. Please do not charge the battery for overnight since it will badly damage the battery life.
  • WEVE GOT YOU COVERED Any Non-human Damage Or Any Reason You Are Not Completely Satisfied With Our Product, We Will Immediately Provide You A Full Refund ( Or Replace Your Item).

Number of Batteries: 1 Lithium Ion batteries required.


Brand: SHINTYOOL


Battery Cell Composition: Lithium


Battery Capacity: 4 Amp Hours


Recommended Uses For Product: Power Tool


Package Dimensions: 5.87 x 4.41 x 3.54 inches


Item Weight: 9 ounces


Item model number: B5502


Batteries: 1 Lithium Ion batteries required.


Date First Available: September 14, 2022


Manufacturer: SHINTYOOL


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Sep 20

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • "Perfect Charger for My Blower"
Size: 2.0 AH
I bought this charger for my blower, and it exceeded my expectations. It arrived very quickly and works perfectly. It charges the battery in just 20 minutes, which is incredibly convenient. I'm very satisfied with the performance and speed — highly recommended!
Reviewed in the United States on September 10, 2025 by Dailen Grave de Peralta Velazquez

  • Rechargeable battery pac for mini chainsaw
Size: 2.0 AH
Charged it up and it works just fine. When I purchased my rechargeable mini chain saw, it came with two batteries one of them never worked. So ordered this one and it works.
Reviewed in the United States on August 2, 2025 by Dianosaurus

  • It works it WORKS‼️
Size: 4.0 AH
Fit exactly charger fit exactly 100% satisfied perfect transaction
Reviewed in the United States on September 2, 2025 by Kimmy

  • Works but there isn't a charge indicator on the battery itself..
Size: 4.0 AH
Works as it should got for a replacement battery for my blower, only thing it doesn't have in a charge indicator on the battery itself, so your kinda left in limbo as to what the charge status is..
Reviewed in the United States on August 25, 2025 by Ty F.

  • Perfect!
Size: 4.0 AH
This not only gave me a new charger but a 3rd battery for my set up. I have a huge corner lot and lost of garden. The battery performs well running about 50min non stop before you could tell it was getting low. Great value for money!
Reviewed in the United States on August 5, 2025 by Jake L. Gumm

  • Great item
Size: 4.0 AH
Guess just what I needed have used it several times Works great
Reviewed in the United States on August 14, 2025 by lance lyman

  • Great Replacement Battery
Size: 2.0 AH
I haven’t had this battery long, but so far I’m really impressed. It has more power than the batteries that came with my blower, and it lasts longer before recharging as well. This type of battery has a relatively short life, and I’m sure this one will be no different. I’m the meantime I’m very happy with its performance. ... show more
Reviewed in the United States on March 30, 2025 by Larry45

  • They do work with my weeder
Size: 4.0 AH
was worried that the batteries would not work with the equipment I own, but with a return policy and a closeup of the connections, I was pretty sure it would fit. They did. a good value for a fast draining battery. easy to use, but the cattery charge time is a little longer than I expected.
Reviewed in the United States on August 1, 2025 by E. Decker

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