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PowerSmart 20V Lithium-Ion Battery, Replacement Battery (Capacity 4.0Ah)

Condition: New
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$49.99
Save $208.01 was $258.00

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Availability: Unavailable
Fulfilled by Amerisun Inc

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At a glance

Condition
New
Color
20V 4.0Ah Battery
Model
PS76440B
Dimensions
4.92 x 3 x 2.7 in
Weight
1.5 lb
Number of Batteries
1 A batteries required. (included)
Battery Capacity
4 Amp Hours
Warranty
2 Year Warranty

Features 4

  • Battery Specs: Brand New|Lithium-ion|20V|4.0Ah|1 Pack
  • Compatible with PowerSmart 20V Lithium-Ion Tools
  • Safety & Reliable: Built-in High quality Cells, Integrated microchip prevents overcharging, Offers long-lasting performance and durability.
  • No memory effect and virtually no self-discharge for maximum productivity and less downtime.

Specs 16

Number of Batteries 1 A batteries required. (included)
Brand PowerSmart
Battery Cell Composition Lithium Ion
Battery Capacity 4 Amp Hours
Recommended Uses For Product Indoor/Outdoor
Model Name PowerSmart
Manufacturer Amerisun Inc
Antenna Location Indoor/Outdoor

Frequently asked questions

This product is currently out of stock. Please check back later for shipping info.

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
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  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


over a year, works great!
Color: 20V 4.0Ah Battery
i have used this multiple times for hours at a time on projects i was working on over a week or several days —has performed very well.
Reviewed in the United States on April 9, 2026 by zooop

Great replacement battery
Color: 20V 4.0Ah Battery
I had two 2.0 mah batteries with the cordless blower and trimmer to take care of cemetery graves! After 1 year one of the two didn’t keep its charge! I purchased this one and have trimmed the graves 3 times and trimmed my front yard today, and battery is running strong before I need to recharge!
Reviewed in the United States on June 26, 2022 by Ron

Love it
Color: 20V 4.0Ah Battery
Was time to get a spare as the original is getting older. This is an upgrade on so many levels . Higher amp hours, built in charge indicator and fit like a glove in the original charger and drill
Reviewed in the United States on November 30, 2023 by jGerke

LOVE this battery!!
Color: 20V 4.0Ah Battery
Lasts soooo much longer than the original battery that came with the leaf blower. The leaf blower is one of the best purchases I’ve ever made. I use it ALL the time. And, this battery lets me have more fun for a much much longer time between charges. Highly recommend!
Reviewed in the United States on December 22, 2023 by Oskinu

Great Performance, Reliable Replacement Battery
Color: 20V 4.0Ah Battery
I’ve been using the PowerSmart 20V 4.0Ah Lithium-Ion Battery as a replacement for my tools, and it works great! The battery holds a good charge and provides solid performance, lasting through several tasks before needing a recharge. It fits perfectly with my PowerSmart tools.
Reviewed in the United States on January 17, 2025 by kyle

Great item!
Color: 20V 4.0Ah Battery
I use it for1 hrs and it seems it's holding up charges for the jobs that I'm using it for 2 days
Reviewed in the United States on January 27, 2024 by Roy Paulino

Doubled my use time with 40V
Color: 20V 4.0Ah Battery
After my first use, it seems to be stronger power than the original battery. This also seems to have more juice output. Don't know about battery charge as I have not used it long enough.
Reviewed in the United States on November 30, 2023 by Alan W

DO NOT BUY FROM AMERISUN!!
Color: 20V 4.0Ah Battery
I purchased this recommended extra battery for a snowblower. AMERISUN then proceeds to charge me for two snowblowers I sent the one back still have not been credited since 12/28/23. The battery BTW which is shown as “bought with” doesn’t fit the charger or the snowblower so sent it back. Interestingly, the return label for the battery ended up being linked with the same UPS tracking# for the returned snowblower (which I have no control over) shows delivered and yet they still refuse to credit that as well. AMERISUN is a scam company STEALING $400+ of my money. BUYER BEWARE!! ... show more
Reviewed in the United States on March 20, 2024 by ICEPRINCESS
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