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Kobalt 40V MAX 4.0Ah Li-Ion Battery (3809904)
B
backcountrymt (455)
99.6% positive feedback
Price:
$99.99
+ $15.01 shipping
Returns:
Condition:
KOBALT TOOLS 3809904 40V 4.0Ah Lithium Quick Charge Battery (CW2065044) / Sealed
- Buy It NowKOBALT TOOLS 3809904 40V 4.0Ah Lithium Quick Charge Battery (CW2065044) / Sealed
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About this product
Product Identifiers
BrandKobalt
MPN3809904
UPC0692042013904
eBay Product ID (ePID)14054320012
Product Key Features
Voltage40 V
Battery TechnologyLithium-Ion (Li-Ion)
ColorBlack
Battery Capacity4 Ah
All listings for this product
Ratings and Reviews
Most relevant reviews
- Mar 03, 2024
Excellent Value Over Lowes Store Price!
This Kobalt battery is not only a great battery, but also fresh. The battery I received was just over a month old according to its factory printed build date, so it was very fresh. The dates on Kobalt batteries I have received during past purchases at Lowe's have been one-two years old each time. After a full discharge, it does take twice as long to charge as the 2.5 40V but that is not a problem. Five years from the build date seems to be the average lifespan of these Kobalt lithium batteries so the three-year Lowes warranty is of little value - especially considering the price of this battery at Lowes. Very happy with my purchase decision using this eBay seller.Verified purchase: YesCondition: New
- Oct 11, 2024
This battery works well with all my Koba...
This battery works well with all my Kobalt lawn tools. Works long enough with my other Kobalt batteries to do what I need to. I would estimate it takes 3 batteries of 4-5 Ah to do my about half an acre yard (depending on how wet or tall the grass is).Verified purchase: YesCondition: Pre-owned
- Dec 20, 2024
Definitely doesn't charge but that's why...
Definitely doesn't charge but that's why I bought it. I had heard you can fix them, so I bought a few for parts to build good ones. My chainsaw only runs on 4 amps or higherVerified purchase: Yes
- Mar 25, 2025
The battery is working excellent and is ...
The battery is working excellent and is newer. Thank you very much.Verified purchase: YesCondition: New
- Mar 19, 2023
justvrecieved charged once and so far so good
have only used once so farVerified purchase: YesCondition: New
- Dec 22, 2024
Kobalt batteries seem fine. They charged...
Kobalt batteries seem fine. They charged right up. Thanks!Verified purchase: YesCondition: New
- Apr 07, 2025
It charged well, hopefully I have many y...
It charged well, hopefully I have many years of useVerified purchase: YesCondition: New
- Apr 22, 2025
Used but excellent condition.
Performing well so far.Verified purchase: YesCondition: Pre-owned
- Jul 29, 2023
Good product at a good price.
Received exactly what I ordered and have only used it once so far but it tested very well.Verified purchase: YesCondition: New
- May 13, 2024
No comment.
The product I bought was same my lawn mower battery. That so I give it 5 stars.Verified purchase: YesCondition: Pre-owned
