40V 6.0Ah Replacement Battery for Kobalt 40v Battery MAX 2540C-06, Rechargeable Lithium Ion Battery for Kobalt KB640-03 KB540C-06 KB245-06 KB240-06 Kb540-06 for Cordless Power Tools
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30-day refund/replacement
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:
15 left in stock
Arrives
Sunday, Jul 6
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Features
- RECHANGEABLE POWER SOURCE - Interchangeable Lithium-Ion Battery, Battery voltage - 40V, Battery wattage - 240Wh, Battery capacity - 6000mAh, great alternative battery for Kobalt 40V Battery. Replacement Battery for Kobalt KB-540-06 KB440-06 KB240-06 KB2540C-06 KB640-03 etc.
- FULLY COMPATIBLE WITH KOBALT - Replacement battery for Kobalt, use Top-A grade battery cell, repeate test to match the original Kobalt. Fully compatible with Kobalt 40V power tools: chain saws, weed whacker, leaf blower, lawn mower, string trimmer etc, and also compatible with Kobalt 40V chargers KRC60-06, KRC40-06 and KRC40-06.
- LONG LASTING POWER - Powerful battery with high-capacity (6000mAh), provide 3X longer run time and stronger power than original Kobalt 40V battery. Fully charged battery work well for a long time, and without replacing battery frequently during work, improve work efficiency.
- INTELLIGENT BATTERY SYSTEM - Built-in ECP smart protection chip for battery, protect against overcharge, over-discharge, overpower, overtemperature, overcurrent, short circuit. Kobalt replacement battery with 4 LED lights, easy to quickly check battery status. Battery with effective cooling function to prevent overheating, achieve worry-free use.
- SAFE AND RELIABLE - Advanced battery for Kobalt, made of premium material and smart chip, obtain the CE FCC PSE ROHS certified, tested by manufacturer to match OEM products safe to use. Replacement battery for Kobalt 40v battery, charged or discharged as needed without losing capacity and memory effect.
Number of Batteries: 1 Lithium Ion batteries required. (included)
Brand: NEPOWILL
Battery Cell Composition: Lithium
Compatible Phone Models: KB640-03 KB540C-06 KB245-06 KB240-06 Kb540-06
Recommended Uses For Product: Lawn Mower,Power Tools,String Trimmer
Package Dimensions: 7.2 x 4.76 x 2.56 inches
Item Weight: 2.64 pounds
Batteries: 1 Lithium Ion batteries required. (included)
Date First Available: May 22, 2023
Manufacturer: NEPOWILL
Country of Origin: China
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, Jul 6
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
**Excellent Replacement Battery for Kobalt Tools** I purchased the NEPOWILL 40V 6.0Ah Replacement Battery for my Kobalt lawn tools, and I couldn't be happier with the performance and value it provides. Firstly, compatibility with my Kobalt tools—specifically the 40v Mower/trimmer/blower/edger/hedge trimmer —is spot on. The battery fits perfectly and functions seamlessly with no issues during installation or use. It's a relief to find a third-party option that works as well as the OEM version, if not better. Speaking of value, the NEPOWILL battery is significantly more affordable compared to the Kobalt branded ones. This cost savings without sacrificing quality is a major plus for anyone looking to extend the life of their cordless power tools without breaking the bank. In terms of performance, I've actually found the NEPOWILL battery to outperform the original Kobalt factory batteries. The 6.0Ah capacity provides ample power and longer runtimes, which is crucial when tackling larger yard projects or extended use scenarios. Overall, if you're in need of a reliable replacement battery for your Kobalt cordless lawn care tools, I highly recommend considering the NEPOWILL 40V 6.0Ah battery. It offers excellent compatibility, superior performance, and outstanding value compared to the OEM alternatives.
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Reviewed in the United States on July 1, 2024 by Matthew D.
This is an exact fit for my Kobalt cordless tools. The OEM batteries are super expensive so with this price point I gave it a shot. It seems to hold a charge and the battery lasts as long as the one it replaced when that one was new. I'm sure it will degrade over time, but so far I'm glad I picked this up.
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Reviewed in the United States on February 22, 2025 by Frankie D
Ordered two and they worked great until they did not. One has completely died and wont charge. These were to replace two original batteries that lasted more than 5 years so having lasted only a year and a half is disappointing.
Reviewed in the United States on April 19, 2025 by Mary
Good battery.. last just like the original battery. Sturdy and good build. Fit and works as described
Reviewed in the United States on April 8, 2025 by mike
use it with my Kobalt mower and other 40v tools, it works great! holds the power, have used it for couple of months now, no issue. the only thing is with higher capacity it has , it becomes heavier , so i mainly use it with my mower,
Reviewed in the United States on August 15, 2024 by Julian Huang
I thought my mower was just not strong enough to cut grass. It would run fine until it hit any type of longer or damp grass, then it would stop and I would have to restart the mower, over and over again. Thought it was just a weak mower. Purchased this new battery and my mower plowed through my entire yard, even through some seriously long grass too. Still had 50% batter leftover when finished. No idea about longevity, just had the battery one day so far. Power though, it absolutely solved my mower's performance issue.
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Reviewed in the United States on April 22, 2024 by Nikhil C.
I am very happy with the NEPOWILL battery . This battery easily outperforms the OEM battery . It has a much longer run time then the OEM even compared to when the oem was brand new. I had a slight problem with the battery that NEPOWILL promptly addressed . I HIGHLY RECOMMEND this product .
Reviewed in the United States on August 3, 2024 by El taco` loco...ahheeee
Great replacement for 40v 5.0 kobalt battery. This battery is 6.0 so it lasts a little longer and it's a little cheaper
Reviewed in the United States on September 20, 2024 by carmelo rivera