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18 Best Kobalt 40V 4.0 Ah Battery of 2022 – Romance University

After hours researching and comparing all models on the market, Romance University finds out Top 18 Best Kobalt 40V 4.0 Ah Battery of 2022. Check our ranking below.

2,367 Reviews Scanned

SaleRank No. #1
Kobalt 40-Volt 4-Amps 4.0ah Rechargeable Lithium Ion (Li-Ion) Cordless Power Equipment Battery
  • High performance Kobalt 40-volt Li-ion 4.0ah battery delivers fade-free power with no memory loss after charging
  • Long run battery has double the capacity of the 2.0-Ah Kobalt quick charge battery and provides extended run time
  • Compatible with the Kobalt 40-volt max team of tools
  • Fuel gauge provides an easy check on available power level
Rank No. #3
KOBALT 40-Volt 4.0AH Rechargeable Lithium Ion (Li-Ion) Cordless Power Equipment Replacement Extended Run Battery
  • High performance Kobalt 40-volt Li-ion battery delivers fade-free power with no memory loss after charging
  • Long run battery has double the capacity of the 2.0-Ah Kobalt quick charge battery and provides extended run time
  • Compatible with the Kobalt 40-volt max team - 1 battery system for 7 lawn care tools
  • Fuel gauge provides easy check on available power level
  • Charge time - 120 minutes
Rank No. #4
NEPOWILL 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
  • 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.
Rank No. #5
POWITEC 40V 4.0Ah Replacement Battery for Kobalt 40V MAX Battery KB-540-06 KB440-06‎ KB240-06 KB2540C-06 KB640-03 Cordless Power Equipment Battery
  • ✔️【Stronger & Longer 40-Volt battery】4.0Ah battery provides 3X longer runtime for Kobalt 40v tools and much more power than original Kobalt 40V battery. With higher capacity and long lasting performance you can cut half the time it takes to do a job!
  • ✔️【Excellent Compatibility】Compatible with multiple Kobalt 40V cordless tool such as Kobalt 40V string trimmer, leaf blower, hedge trimmer, chainsaw and lawn mower etc. Replacement Battery for Kobalt KB-540-06 KB440-06‎ KB240-06 KB2540C-06 KB640-03
  • ✔️【Intelligent Battery Management】this replacement battery for Kobalt 40V battery features advanced cell protection to provide fade free, cord-like power, which allows battery and tools to communicate to provide the best performance possible that powers through heavier applications and protects against overloading and overheating.
  • ✔️【Upgraded compact construction】 This 40-Volt battery of 3rd generation has been improved in the battery energy density and possesses a lighter weight so that it can offer lengthened runtime and stronger power.
  • ✔️【4-LED fuel gauge】 4 LED lights indicate the remaining power at a glance and the level of charge for quick reference to battery status. Fast charge with original Kobalt 40V battery charger KRC60-06,KRC40-06,KRC 840-03.
SaleRank No. #6
TenHutt 【3rd-Generation】 4.0Ah 40V Replace Battery for Kobalt 40V MAX 2540C-06 High Capacity Lithium-ion Battery KB440-03 KB2540C-06 KB640-03 KB240-06 for Cordless Power Tools
  • ✔【Powerful & 3X Longer Runtime】Arguments:40-Volt 4.0Ah Lithium-ion | Not just a replacement!Actual capacity and top A grade li-ion cells provides 3X longer runtime and stronger power than original Kobalt 40V battery. (You can get lot done with full charge.)✚ 1/2 Lightweight for better handling and less fatigue.
  • ✔【Extensive Compatibility & Seamless Fit】100% Fits all Kobalt 40V Max Tools and Kobalt 40V chargers[Support fast charging] ✚ Replace for all Kobalt 40V Series Battery
  • ✔【Upgraded in Longevity】Thanks to its 1000 times recharge cycle and 1% low self discharge rate, the TenHutt battery for Kobalt could easily works for up to 3 years without problem.| Doesn't allow the tool to slow down at the end of the charge.
  • ✔【Excellent Performance】 This 40V 3rd-Lithium battery are Smaller and lighter than common replacement batteries, yet delivers longer runtime and fade-free power.
  • ✔【Safety Assured】One of the few battery cell selection with UL cetified in the market of Kobalt MAX 40volt replacement battery, equipped with battery management system(BMS) that can effectively protect the battery from potential damage caused by short circuit, over-charge/discharge, over-voltage and over-heating.
Rank No. #7
SABER 40-Volt 4.0Ah Battery Replacement for Kobalt 40V Outdoor Power Tools (4.0Ah)
  • KOBALT COMPATIBLE: This battery is fully compatible with the entire Kobalt 40 volt tool lineup including the Kobalt 40v mower, pole saw, string trimmer, leaf blower, hedge trimmer, and more. It can be charged with the original Kobalt 40V charger and is a replacement for all Kobalt 40V batteries (KB440-03 KB2540C-06 KB640-03 KB240-06 KB640-06 KB245-06 ‎KRC40-06 KB440C-06 KRC60 KRC40-06 KB240-06)
  • HIGH PERFORMANCE: Our 4.0 amp-hour 40V high capacity lithium-ion battery delivers fade-free power with no memory loss after charging. Up to 100% more runtime than the standard Kobalt 2.0 Ah 40-volt battery.
  • HIGH QUALITY: Saber Battery is a trusted battery brand and our team has decades of experience in the electronics industry. All products are designed, tested, and quality controlled in the USA. You can count on Saber for high-quality products and reliable performance.
  • MULTIPLE SAFETY PROTECTION: All our batteries are fitted with protection circuitry to prevent overheating, overcurrent, over-charging, and over-voltage - making the battery safer and prolonging life.
  • CUSTOMER SATISFACTION: If you're unhappy with this battery let us know and we'll make it right - our customer services team is located in the USA so expect a fast and clear response!
Rank No. #8
POWITEC 40V 6.0Ah Replacement Battery for Kobalt 40V MAX Lithium Ion Battery KB440-06‎ KB240-06 KB2540C-06 KB640-03
  • ✔️【Stronger & Longer 40-Volt battery】6.0Ah battery provides 3X longer runtime for Kobalt 40v tools and much more power than original Kobalt 40V battery. With higher capacity and long lasting performance you can cut half the time it takes to do a job!
  • ✔️【Excellent Compatibility】Compatible with multiple Kobalt 40V cordless tool such as Kobalt 40V string trimmer, leaf blower, hedge trimmer, chainsaw and lawn mower etc. Replacement Battery for Kobalt KB-540-06 KB440-06‎ KB240-06 KB2540C-06 KB640-03
  • ✔️【Intelligent Battery Management】this replacement battery for Kobalt 40V battery features advanced cell protection to provide fade free, cord-like power, which allows battery and tools to communicate to provide the best performance possible that powers through heavier applications and protects against overloading and overheating.
  • ✔️【Upgraded compact construction】 This 40-Volt battery of 3rd generation has been improved in the battery energy density and possesses a lighter weight of 2.66lbs so that it can offer lengthened runtime and stronger power.
  • ✔️【4-LED fuel gauge】 4 LED lights indicate the remaining power at a glance and the level of charge for quick reference to battery status. Fast charge with original Kobalt 40V battery charger KRC60-06,KRC40-06,KRC 840-03.
SaleRank No. #9
【Upgrade】 6.0Ah 40Volt Replacement Battery for Kobalt 40V MAX Battery 2540C-06 Lithium-ion Battery for KB440-03 KB2540C-06 KB640-03 KB240-06 for Cordless Power Tools -High Capacity
  • ✔【Powerful & 3X Longer Runtime】Arguments:40-Volt 6.0Ah Lithium-ion | Not just a replacement!Actual capacity and top A grade li-ion cells provides 3X longer runtime and stronger power than original Kobalt 40V battery. (You can get lot done with full charge.)✚ 1/2 Lightweight for better handling and less fatigue.
  • ✔【Extensive Compatibility & Seamless Fit】100% Fits all Kobalt 40V Max Tools and Kobalt 40V chargers[Support fast charging] ✚ Replace for all Kobalt 40V Series Battery
  • ✔【Upgraded in Longevity】Thanks to its 1000 times recharge cycle and 1% low self discharge rate, the TenHutt battery for Kobalt could easily works for up to 3 years without problem.| Doesn't allow the tool to slow down at the end of the charge.
  • ✔【Excellent Performance】 This 40V 3rd-Lithium battery are Smaller and lighter than common replacement batteries, yet delivers longer runtime and fade-free power.
  • ✔【Safety Assured】One of the few battery cell selection with UL cetified in the market of Kobalt MAX 40volt replacement battery, equipped with battery management system(BMS) that can effectively protect the battery from potential damage caused by short circuit, over-charge/discharge, over-voltage and over-heating.
Rank No. #10
DSANKE 40V 6000mAh Battery Replacement for Kobalt 40Volt Lithium Ion Battery KB440-03 KB540C-06 KB540-06 KB2540C-06 KB640-03 KB240-06 KB640-06 KB245-06 ‎KRC40-06 KB440C-06 KRC60 KRC40-06 KB240-06
  • ✔【Battery Specifications】Type: Lithium-ion | Voltage: 40V | Capacity: 6000mAh | Watt: 240W | Pack: 1 Pack,Delivers up to 4X the run time than Kobalt 40V 3.0Ah battery.
  • ✔【100% Compatible】Replacement for Kobalt 40Volt Lithium Ion Battery KB440-03 KB2540C-06 KB640-03 KB240-06 KB240C-06 KB640-06 KB245-06 ‎KRC40-06 KB440C-06 KRC60 KRC40-06 KB240-06, 100% Compatible with Kobalt 40Volt Tools,Perfect fit all Kobalt 40V Chargers(KRC60-06 KRC40-06 KRC 840-03).
  • ✔【Why Choose Us?】Our more powerful 40V 6.0Ah battery delivers up to 4X the run time of the 3.0Ah battery.Built-in ECP smart protection chip provide overcharge and overdischarge protection to extend 4X battery life.Use A-class Lithium-ion Cells to make the battery charge and discharge cycles >1000 times!! Stay alert of the state of charge with a convenient 4-LED fuel gauge.
  • ✔【Safety & Reliable】All of the products are CE FCC PSE ROHS certified, tested by manufacturer to match OEM products and exported all around the world.No memory effect, can be charged or discharged as needed without losing capacity.
  • ✔【1.5 YEAR WARRANTY!!】30 days money back + 1.5 year FREE refund or replacement + 24*7 hours prompt after-sales service. If you have any questions about the DSANKE replacement for Kobalt 40V battery, you could try again or contact us by your Order ID.
SaleRank No. #11
JIALIPOK 24V 6.0Ah Replacement Battery for Kobalt 24V Max KB624-03 KB524-03 KB424-03 KB224-03 KB124-03 0673802 1051230 Lithium Ion Cordless Tools Battery NOT for Snow Joe
  • ✅【Great Replacement for Kobalt】100% Brand New 24V | 6.0Ah | lithium-ion battery. The 24V replacement battery for Kobalt has high-capacity rechargeable battery for extended run time. Repeated tested to match over 50 Kobalt 24V power tools.
  • ✅【Higher Capacity】 The replacement Kobalt 24V 6.0 Ah higher capacity battery for Kobalt tools, made with Top-A grade battery cell and repeated tested to match original for Kobalt power tools, the replacement battery has no memory effect, is more powerful, longer-lasting.
  • ✅【Replacement for Kobalt Battery Part】Replacement for Kobalt 24 volt Max KB624-03 KB524-03 KB424-03 KB224-03 KB124-03 0673802 1051230 Lithium Ion Battery
  • ✅【Compatible with Kobalt Tools】 Kobalt 24v lithium battery replacement compatible with Kobalt outdoor power tools KCS 6524B-03, KCW 5024B-03, KDS 124B-03, KDSA 124-03, KHD 524B-03, etc.(Please find more models in our descriptions)
  • ✅【Safety & Reliable】 Kobalt replacement batteries with four LED lights on the battery that display the remaining power and reduce the risk of downtime work, allowing you to monitor charge levels conveniently. Protect against overcharge, over-discharge, overpower, over-temperature, overcurrent, short circuit.
Rank No. #12
JIALIPOK 40V 6.0Ah Replacement for Kobalt 40V Battery Rechargeable Lithium Ion Cordless Power Tool Battery KB540C-06 KB245-06 KB240-06 Kb540-06
  • Great replacement for Kobalt 40V 6Ah lithium-ion battery with high capacity for extended runtime
  • Higher 6Ah capacity provides 50% longer runtime versus original Kobalt 2Ah battery
  • Compatible with Kobalt 40V MAX tools like KB-440C-06, KB240-06, KB245-06, Kb540-06
  • Safety features like LED power indicator and protection against overcharging, over-discharging
  • 12 months quality service and friendly 24/7 customer support from JIALIPOK
Rank No. #14
hogardsujia 80V 3000mAh Lithium Ion Replacement Battery for Greenworks Pro 80V GBA80200 GBA80250 GBA80300 GBA80400 GBA80500 (Not for Kobalt)
  • Type: Lithium-ion | Voltage: 80V | Capacity: 3000mAh | Watt: 240W | Color: black
  • Fit Greenworks 80V battery: GBA80200, GBA80250, GBA80400, GBA80500. 100% Compatible with Greenworks 80V cordless power tool
  • Built-in high quality Cells lengthen battery life. Battery have long-lasting performance and durability, tested by manufacture
  • Four LED Indicator Light Displays remaining running time for less downtime on the job,You can see how much fuel the battery has charged up with the LED panel on the side.
Rank No. #15
Kobalt KRC 60-06 40-Volt Lithium Ion Standard Cordless Power Equipment Battery Charger
  • This refurbished product is tested and certified to work properly. The product will have minor blemishes and/or light scratches. The refurbishing process includes functionality testing, basic cleaning, inspection, and repackaging. The product ships with all relevant accessories, and may arrive in a generic box.
SaleRank No. #16
Kobalt 40-Volt Power Equipment Battery Rapid Quick Charger Gen3
  • Integrated LED charge indicator lights - to let you know if your battery has a full charge or not
  • Compatible with all Kobalt 40-volt max Li-ion batteries (sold separately)
Rank No. #17
Kobalt 40-Volt Max 2.5-Amps Rechargeable Lithium Ion (Li-Ion) Cordless Power Equipment Battery
  • High performance Kobalt 40-volt li-ion battery delivers fade-free power with no memory loss after charging
  • Compatible with the Kobalt HC 40 volt max family of products
  • Fuel gauge provides an easy check on available power level
  • Model # KB 2540C-06
SaleRank No. #18
Kobalt 40 Volt Max 5 Amp Hour Rechargeable Lithium Ion (Li-Ion) Cordless Power Equipment Battery
  • Model# KB 540C-06 High performance Kobalt HC 5.0 40-volt li-ion battery delivers fade-free power with no memory loss after charging
  • Compatible with the Kobalt 40-volt max family of tools - 1 battery system for 24+ lawn care tools
  • Fuel gauge provides an easy check on available power level
  • Battery Amp Hours: 5
  • Charge Time (Hours): 1.50

How Do You Buy The Best Kobalt 40V 4.0 Ah Battery?

Do you get stressed out thinking about shopping for a great Kobalt 40V 4.0 Ah Battery? Do doubts keep creeping into your mind? We understand, because we’ve already gone through the whole process of researching Kobalt 40V 4.0 Ah Battery, which is why we have assembled a comprehensive list of the greatest Kobalt 40V 4.0 Ah Battery available in the current market. We’ve also come up with a list of questions that you probably have yourself.

Romance University has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for Kobalt 40V 4.0 Ah Battery that you consider buying. Your questions might include the following:

  • Is it worth buying an Kobalt 40V 4.0 Ah Battery?
  • What benefits are there with buying an Kobalt 40V 4.0 Ah Battery?
  • What factors deserve consideration when shopping for an effective Kobalt 40V 4.0 Ah Battery?
  • Why is it crucial to invest in any Kobalt 40V 4.0 Ah Battery, much less the best one?
  • Which Kobalt 40V 4.0 Ah Battery are good in the current market?
  • Where can you find information like this about Kobalt 40V 4.0 Ah Battery?

We’re convinced that you likely have far more questions than just these regarding Kobalt 40V 4.0 Ah Battery, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for Kobalt 40V 4.0 Ah Battery, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible Kobalt 40V 4.0 Ah Battery. Make sure that you are only using trustworthy and credible websites and sources.

Romance University provides an Kobalt 40V 4.0 Ah Battery buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information. How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available Kobalt 40V 4.0 Ah Battery currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of Kobalt 40V 4.0 Ah Battery has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an Kobalt 40V 4.0 Ah Battery?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your Kobalt 40V 4.0 Ah Battery.
  5. Customer Ratings: Number ratings grade Kobalt 40V 4.0 Ah Battery objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their Kobalt 40V 4.0 Ah Battery.
  7. Product Quality: You don’t always get what you pay for with an Kobalt 40V 4.0 Ah Battery, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an Kobalt 40V 4.0 Ah Battery is should be an indication of how long it will work out for you.

Romance University always remembers that maintaining Kobalt 40V 4.0 Ah Battery information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding Kobalt 40V 4.0 Ah Battery is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly! We’re here for you all the time. Contact us here. Or You can read more about us to see our vision.

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