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18V 8.0 Ah MAX Output EXP Lithium-Ion Battery

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  • Up to 3X More Power
  • Extreme Performance when Paired with Brushless Tools
  • Free Parts and Service for Life with Registration
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Product Overview

RIDGID introduces the AC840080 18V 8.0 Ah MAX Output EXP Lithium-Ion Battery. Experience extreme performance in the toughest jobsite applications. RIDGID MAX Output EXP batteries utilize advanced intelligent electronics to optimize performance by creating a communication system between both tool and battery. MAX Output EXP features ThermaGuard Technology which combines oversized heat sinks with advanced intelligent electronics to keep the battery running cooler, prevent overloading, and protect individual cell performance. To shield against the toughest jobsite conditions, this battery is constructed with durable reinforced housing. As always, this RIDGID 18V 8.0 Ah MAX Output EXP Lithium-Ion Battery is 100% compatible with all RIDGID 18V tools. Best of all, this battery is backed by the Industry’s Best Lifetime Service Agreement, simply register within 90 days of purchase for FREE Parts, Free Service, For LIFE.
  • MAX Output EXP is the most powerful battery RIDGID has ever built
  • Premium 21700 Lithium-Ion cells are engineered to maximize runtime and deliver up to 3X more power in high demand applications
  • Advanced Intelligent Electronics communicate directly with the tool to provide optimum performance when paired with brushless tools
  • ThermaGuard Technology keeps the battery pack running cooler by utilizing advanced intelligent electronics and oversized heat sinks to remove built up heat
  • Durable pack design with reinforced housing shields the battery against tough jobsite conditions
  • Integrated LED fuel gauge monitors runtime
  • 100% Compatible: Works with all RIDGID 18V Tools and Chargers
  • Lifetime Service Agreement with registration within 90 days of purchase
  • Includes: AC840080 8.0 Ah MAX Output EXP Lithium-Ion Battery and Operator’s Manual
  • RIDGID: Built for a Lifetime
  • Click here for more information on Electronic Recycling Programs
  • California residents

Additional Resources

From the Manufacturer

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Battery Amp Hours6.
Used with Equipment TypeUtilityUtilityUtilityUtility
Power Tool Accessory TypeBatteryBatteryBatteryBattery
Voltage (volts)18 V18 V18 V18 V
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Customer Reviews

  • 5
    out of 11 reviews
  • 100%recommend this product
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Showing 1-10 of 11 reviews
High power battery with free replacement offer
This review is for the Ridgid 8Ah (144 Wh), EXP Li-ion rechargeable battery, Model R840080. It has more than 5 times the power of the Li-ion batteries that came with the Ridgid tool set with brush-equipped motors that I bought about eight years ago. This extra power is displayed as a new lease on life for that old power tool set, it now performing with zest. This battery weighs 2 pounds, 4-1/2 ounces. I charged this new battery with the Ridgid Model R840093 charger from that old tool set. The battery arrived about 1/4 charged, it taking about 90 minutes to charge fully with that old charger. I chose this battery in anticipation of using it to power the new RIdgid 18-volt, NXT shop vacuum that I am intending to purchase in a few days. I expect long run times for that vacuum with this high power battery. Especially attractive is the free battery replacement for Ridgid Li-ion batteries when they wear out, if registered within 90 days of purchase. This battery comes with a limited 3-year warranty.
  • Recommended
Insane Battery Life, But Heavy
This batter is huge, and seemingly runs forever. I've had it on my drill, reciprocating saw, and circular saw off and on for a few small projects and it still has 2 bars left. It is probably more than is necessary for most small DIY projects. However, it is super nice to never worry about battery life with this battery. It is large, and much heavier than the smaller 4 Ah batteries I have. All in all, it's very nice to have.
  • Recommended
The RIDGID 8Ah Max Output ExP battery is a powerful addition to the RIDGID lineup of 18V batteries. It provides both more power and a greater run time. Since most RIDGID tools are sold sans batteries, this battery is useful just to have another battery available to power your RIDGID tools. I am looking forward to using this battery with all of my RIDGID tools. The battery weighs only 2 lbs. 4.5 ounces. I have already used it in both my spotlight and my hand vacuum. Maybe it is just a placebo effect but both tools seemed to perform much better with this battery. The spotlight gave off an incredible amount of light for a long time. Since the battery is lightweight, the spotlight was still easy to carry. It took about 90 minutes to fully charge the battery. If you keep your receipt and register the battery in the first 90 days, you can take advantage of the unbelievable offer that RIDGID makes to provide free batteries for life. The battery is made in China.
  • Recommended
higher amps work longer
The more amps the battery has, the longer the tool will run. You can have two 18V batteries, but one might run longer than another because it has a higher amp rating. Put it to the test and vacuumed out the car with my wet vac normally I have to put in 2 a 4 amp and a 2 amp and most of the time I can get all the rocks and straw out of the car floor but this time I did that and still have plenty of power left to finish a project with my nail gun
  • Recommended
1 found this review helpful
Great Features
When I first unpacked the RIDGID 18V Lithium-Ion 8.0 Ah Battery, I thought "Uh oh - this is a different design and it's not going to fit." But, as you can see in the pictures, although this battery dwarfs the 2AH batteries I already had, thanks to a clever design, it is completely interoperable. I did have to leave it on the small charger overnight though, the bigger charger would be a good investment. This Ridgid line of tools is very well made and good value.
  • Recommended
A beast of a battery
I am currently trying another brand and hence battery platform for the tools I'd like to take on the road with me. Ridgid is the brand I had chosen for a variety of reasons , including the warranty on some of their products. I am looking to expand into heavier cordless and brushless tool platform and was hoping to find a long-lasting battery for some of the more power-sucking tools. This bad boy is very impressive. It is quite heavy and takes a few hours to charge on nearly empty, but boy it's worth it. It's gonna give the competition a run for the money.
  • Recommended
You can feel the extra power
The Ridgid 18V 8.0 Ah MAX Output EXP Lithium-Ion Battery delivers 3X more power when you need it most. It runs cooler and last longer. This battery is compatible with all 18V Ridgid tools and chargers. It has LED displays for the power levels. I mainly chose it to run my impact driver, but I will be using it on many other Ridgid 18V tools. The power output is more than I imagined. Yes, it weighs a little more but I'll trade a few extra ounces for more power any day. I'm also impressed with the customer service Ridgid provides. There's always a knowledgeable Ridgid Professional ready to answer your questions. Don't forget to register this battery for the Best Lifetime Service Agreement within 90 days of purchase to receive free parts, free service for life. Now, that's a real deal. As I've said before, if you need a good tool, buy a Ridgid.
  • Recommended
Compact power for all 18v rigid tools
RIDGID 18V Lithium-Ion 8.0 Ah max output EXP Battery. This battery is about the size of other Rigid batteries but with longer life technology. It fits all 18 volt Rigid tools and delivers up to 3x more power while running longer and staying cooler. Registered products will be eligible for free batteries for life. The battery comes with instructions and precautions for use. This is a product of China and imported for Rigid if that is an issue for users.
  • Recommended
8Ah battery for when I need more run time
I have a pretty good selection of RIDGID 18V tools but only had one 4Ah MAX output battery. This battery fills my need for a back-up. But if you think you will run through multiple batteries in a day, you may want to pick up RIDGID's high output charger. I only have their standard charger and it took around 3 h to charge from 1 to 4 bars. When mounter on my hammer drill or reciprocating saw, the extra weight of the battery was not an issue. IF you are like me and need an extra battery, this one fits the bill nicely.
  • Recommended
1 found this review helpful
New RIDGID 18v 8.0 AH
As a DIY'er, we have used RIDGID tools from HomeDepot for a number of years and they have performed well. The RIDGID 18V 8.0 Ah MAX Output EXP Lithium-Ion Battery is a new addition to our tool chest and we are impressed. RIDGID has continuously worked to improve its tool offerings and this battery is a great example. The Warranty is reassuring and the performance is excellent. It is advertised to run cooler and longer and the 8.0 Ah output gets the job done. We would highly recommend this battery to add to your RIDGID collection.
  • Recommended
Showing 1-10 of 11 reviews