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320710789

Model #

AC840040P-AC840040P-AC840020PN-AC840020P

18V 4.0 Ah MAX Output Lithium-Ion Batteries (4-Pack) with 18V 2.0 Ah MAX Output Lithium-Ion Batteries (4-Pack)

(144)Questions & Answers (18)
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  • MAX Output Batteries Provide More Power and More Runtime
  • Includes (4) 4.0 Ah & (4) 2.0 Ah MAX Output Lithium-Ion Batteries
  • Free Parts and Service For Life with Registration
  • View More Details
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Product Details

RIDGID introduces the 18V 4.0 Ah MAX Output Lithium-Ion Batteries (4-Pack) with 18V 2.0 Ah MAX Output Lithium-Ion Batteries (4-Pack). MAX Output batteries facilitate battery and tool communication unleashing the full potential of any RIDGID 18V Brushless Tool providing more power and more runtime. These 4.0 Ah MAX Output Batteries will provide up to 3X more runtime compared to the 1.5 Ah lithium-ion battery (AC870015). These 2.0 Ah MAX Output Lithium-Ion Batteries will provide extended runtime compared to the 1.5 Ah lithium-ion battery (AC870015). The advanced electronics in MAX Output batteries enable users to power through the most demanding applications on the jobsite. These RIDGID MAX Output Batteries are compact and lightweight, which reduces user fatigue. As always, these RIDGID MAX Output Batteries are 100% compatible with all RIDGID 18V tools. Best of all, these batteries are eligible for the Industry's Only Lifetime Service Agreement, simply register within 90 days of purchase for FREE Parts, FREE Service, For LIFE. Charger sold separately.
  • MAX Output Batteries provide up to 2X more power compared to the 1.5 Ah lithium-ion battery (AC870015)
  • 4.0 Ah MAX Output Batteries: Up to 3X more runtime compared to the 1.5 Ah lithium-ion battery (AC870015)
  • 2.0 Ah MAX Output Batteries: Extended runtime compared to the 1.5 Ah lithium-ion battery (AC870015)
  • Advanced electronics and innovative cooling technology for extended battery life
  • Compact size reduces user fatigue
  • Fuel gauge displays power level on the job
  • 100% Compatible: Works with all RIDGID 18V Batteries, Tools, and Chargers
  • Lifetime Service Agreement with registration within 90 days of purchase
  • Includes: (4) R840040 18V Lithium-Ion MAX Output 4.0 Ah Battery, (4) R840020 18V Lithium-Ion MAX Output 2.0 Ah Battery, and operator's manual
  • Charger sold separately
  • RIDGID: Build for a Lifetime
  • Click Here to Shop All RIDGID Products
  • Click here for more information on Electronic Recycling Programs
  • Return Policy
  • California residents

Additional Resources

From the Manufacturer

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Specifications

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Questions & Answers

18Questions
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Q:Is the battery compatible with the R840085 1.5Ah impact driver?
by|Mar 15, 2023
1 Answer
Answer This Question

A:  Hello, Mark - Thank you for your question. This battery is compatible with all RIDGID 18v Li-Ion tools. I hope this helps! Additionally, if you need further support, then a RIDGID Customer Experience Professional is here for you, Monday - Friday from 9 am to 6 pm (EST) when you call or text us at 1.866.539.1710 or through email or live chat when you visit us at https://register.ridgidpower.com/contact. And thank you again for your interest in the 18V Lithium-Ion MAX Output 2.0 Ah Battery (2-Pack). - Jewel

by|Mar 17, 2023
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    Q:When did Ridgid change their policy to have the LSA apply to batteries purchased not in a combo kit?
    by|Jan 29, 2023
    1 Answer
    Answer This Question

    A:  Hello, None - Thank you for your question. This policy change happened on March 8, 2021. Any batteries or chargers purchased without a tool before that date are not eligible for the LSA. I hope this helps! Additionally, if you need further support, then a RIDGID Customer Experience Professional is here for you, Monday - Friday from 9 am to 6 pm (EST) when you call or text us at 1.866.539.1710 or through email or live chat when you visit us at https://register.ridgidpower.com/contact. And thank you again for your interest in the 18V Lithium-Ion MAX Output 4.0 Ah Battery (2-Pack). - Jewel

    by|Jan 30, 2023
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      Q:Can these batteries be used with the rigid 9 gal cordless vacuum?
      by|Nov 24, 2022
      1 Answer
      Answer This Question

      A:  Hello, Norell - Thank you for your question. If the vacuum is 18v then, yes. I hope this helps! Additionally, if you need further support, then a RIDGID Customer Experience Professional is here for you, Monday - Friday from 9 am to 6 pm (EST) when you call or text us at 1.866.539.1710 or through email or live chat when you visit us at https://register.ridgidpower.com/contact. And thank you again for your interest in the 18V Lithium-Ion MAX Output 4.0 Ah Battery (2-Pack). - Jewel

      by|Nov 30, 2022
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        Q:How long is warranty on batteries
        by|Sep 21, 2022
        1 Answer
        Answer This Question

        A:  Hello, Bobthebuilder - Thank you for your question. The warranty on our batteries is for 3 years. I hope this helps! Additionally, if you need further support, then a RIDGID Customer Experience Professional is here for you, Monday - Friday from 9 am to 6 pm (EST) when you call or text us at 1.866.539.1710 or through email or live chat when you visit us at https://register.ridgidpower.com/contact. And thank you again for your interest in the 18V Lithium-Ion MAX Output 4.0 Ah Battery (2-Pack). - Courtney

        by|Oct 5, 2022
          Showing 1-4 of 18
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          Customer Reviews

          4.8 out of 5
          (144)
          • 4.8
            out of 144 reviews
          • 97%recommend this product
          Filter by:
          Showing 1-10 of 144 reviews
          Aug 30, 2021
          LIGHTWEIGHT; POWERFUL; LONG RUN-TIME
          LIGHTWEIGHT; POWERFUL; LONG RUN-TIME — The RIDGID 18V Lithium-Ion MAX Output 4.0 Ah Battery (2-Pack) are a significant upgrade from my previous Ridgid battery. They are two times more powerful with three times the run time compared to the previous battery. I was impressed with how lightweight they are for batteries with this much power. When using one of these batteries with my Ridgid angle grinder, the increased power was apparent immediately. With the long runtime, there was not a problem completing the task. If there had been, having two charged batteries would have provided me with an incredible run time. The batteries took about 90 minutes to charge so when one battery runs out, the second battery could be used while the first one is being recharged. I am looking forward to the power and the long run time when using my new Ridgid framing nailer. The batteries are made in China.
          by
          • Recommended
          Jun 19, 2021
          RIDGID 18V Lithium-Ion MAX Output 4.0 Ah Battery (2-Pack) – I recently got some Ridgid cordless t...
          RIDGID 18V Lithium-Ion MAX Output 4.0 Ah Battery (2-Pack) – I recently got some Ridgid cordless tools and wanted some extra batteries. Of course, I had to buy Ridgid batteries for these tools, but that should be expected. From my experience the performance of Ridgid batteries is comparable to other tool brands. Their cases look and feel well made, they charge pretty quickly with a fast charger and they last about what I expect a 4.0 Ah battery to last in a drill or impact driver regardless of the brand. Ridgid batteries, like other brands include fuel gauges that indicate the power level. The big selling point for Ridgid tools and batteries, after performance, is the Ridgid Lifetime Service Agreement.
          by
          • Recommended
          Jun 17, 2021
          This 2 pack set of 4.0 ah lithium ion Max output batteries are much more advanced than the older...
          This 2 pack set of 4.0 ah lithium ion Max output batteries are much more advanced than the older line on batteries! Couldn't believe the difference until I tried them. They are compatable with all other 18 volt Ridgid tools and chargers. When I do jobs, either around the house or away, I need batteries that will last! That's why 2 of these are perfect! Highly recommend for DIY or professionals. Check out the features: These batteries are eligible for the Industry’s Only Lifetime Service Agreement, simply register within 90 days of purchase for FREE Parts, FREE Service, For LIFE. MAX Output Batteries provide up to 2X more power compared to the 1.5 Ah lithium-ion battery (AC870015) Up to 3X more runtime compared to the 1.5 Ah lithium-ion battery (AC870015) Advanced electronics and innovative cooling technology for extended battery life Compact size reduces user fatigue Fuel gauge displays power level on the job
          by
          • Recommended
          Jun 16, 2021
          This batteries are an exact replacement for the batteries that came with my Rigid 18V tools. Whil...
          This batteries are an exact replacement for the batteries that came with my Rigid 18V tools. Whilst cosmetically they are slightly different (please see my video for a description of these differences) they are functionally identical, This is a value pack, and comes with two batteries in a blister pack Four LED indicators read out the charge level when pressed, and display the charging status when they are in the charger. I had some 1/4 inch concrete anchors to place in concrete and these extra batteries meant I could complete the whole job without needed to recharge a battery mid job.
          by
          • Recommended
          1 found this review helpful
          Jun 12, 2021
          I got these batteries to power my ½” 18v impact wrench. I have several pieces of equipment that r...
          I got these batteries to power my ½” 18v impact wrench. I have several pieces of equipment that require lots of power and torque to remove rusted nuts and bolts. These 4.0 Ah batteries have more power and last much longer than the 2.0 Ah batteries that came with my impact driver. I was changing two sets of 4 wheels / tires out on my trailer, it was very handy having two batteries to swap out, so didn’t have to stop for charging. They can be used with any other 18v tools for this brand, so I am looking to add more tools because of these batteries. Exceptional batteries
          by
          • Recommended
          Jun 12, 2021
          These batteries are amazing. They fit all the various Ridgid power tools 18-volt types. Some that I previous purchased I have had between 5-10 years and still they charge and work great. These new Ridgid 18V Lithium-Ion Max 4-0 Ah batteries are just additional power for my growing Ridgid power tool collection. What is great addition that I am able to recharge these batteries easily from my solar power farm. My sheds are completely assembled by these rechargeable batteries. I am also using them for many projects and they last and last. Very fast recharging as well. I am very satisfied and looking forward to many more years of service from them. You can also register your purchase of this 2-pack and receive a Lifetime Service Agreement. That is how confident this company is about their batteries. Thank you, Ridgid, and Home Depot, for providing your customers the very best in quality. I love and recommend this 2-pack battery pack. I am sure you will love them too!
          by
          • Recommended
          Jun 11, 2021
          I regularly use battery power tools by three well known quality tool companies. They all outperfo...
          I regularly use battery power tools by three well known quality tool companies. They all outperform cheap or non-pro quality tools, the kind I had near my workbench and were useless since their batteries wore out in the second year and replacements cost more than the tool. I only buy quality tools now, and if you're thinking about buying these you have decided that Ridgid has given itself an advantage over all the rest by promising free replacement of tool or battery forever. They charge quickly and quietly, are relatively small in size, offer a charge test light, and give the kind of rugged performance you need. The 4 AH is only a bit larger than the 2 AH and saves a lot of time and effort.
          by
          • Recommended
          Jun 9, 2021
          These Ridgid 4.0 AH batteries have a lot more 'grunt' than their lower-rated siblings. They arriv...
          These Ridgid 4.0 AH batteries have a lot more 'grunt' than their lower-rated siblings. They arrived just in time, I was running into trouble drilling deep holes with a 1" speed bit into a freshly cut hardwood stump. While it's no shock that a 4.0 AH battery outlasts a 2 AH battery, I was pleasantly surprised to find they were much less susceptible to overheating Plug right in to my existing chargers, and are an exact fit to Ridgid 18v tools. Heavier than the smaller batteries, for sure, but that is pretty much a given. They are approximately the same weight as their Milwaukee 4AH 18v cousins.
          by
          • Recommended
          2 found this review helpful
          Jun 8, 2021
          RIDGID 18V Lithium-Ion MAX Output 2.0 Ah Battery (2-Pack). This replacement battery set came with...
          RIDGID 18V Lithium-Ion MAX Output 2.0 Ah Battery (2-Pack). This replacement battery set came with two batteries but no charger. They are the standard 18v batteries used in all of the Rigid tools. Each battery has a charge indicator activated by a small pushbutton near the led display. I have never tested the life of the batteries in use but the premise is that there is enough charge to last for two hours of use. An ampere hour or amp hour is a unit of electric charge, having dimensions of electric current multiplied by time, equal to the charge transferred by a steady current of one ampere flowing for one hour, or 3,600 coulombs.
          by
          • Recommended
          Jun 5, 2021
          RIDGID 18V Lithium-Ion MAX Output 2.0 Ah Battery (2-Pack) Having spare batteries lets you keep wo...
          RIDGID 18V Lithium-Ion MAX Output 2.0 Ah Battery (2-Pack) Having spare batteries lets you keep working while the other battery is charging. The batteries are lightweight and work in all my Ridgid tools. They last a lot longer than the 1.5 batteries. I have had these for a week and yet have needed to recharge them. Register within 90 days for lifetime parts and service. They did not come with a charger so I used the one that came with my drills. It is always good to have an extra battery available.
          by
          • Recommended
          Showing 1-10 of 144 reviews