#1 Home Improvement Retailer

18V Lithium-Ion MAX Output 4.0 Ah Battery and Charger Starter Kit

$15900
Apply Now
Pay $134.00 after $25 OFF your total qualifying purchase upon opening a new card. info
Apply for a Home Depot Consumer Card
  • MAX Output Batteries Provide More Power and More Runtime
  • Compatible with all RIDGID 18V Tools ad Chargers
  • Free Parts and Service for Life with Registration
How to Get It

Frequently Bought Together

Exclusive
++
Price:
$15900

Product Overview

RIDGID introduces the AC9540 18V 4.0 Ah MAX Output Battery and Charger Starter Kit. MAX Output batteries facilitate battery and tool communication unleashing the full potential of any RIDGID 18V Brushless Tool providing more power and more runtime. The included RIDGID MAX Output 4.0 Ah battery will provide up to 3X more runtime and 2X more power compared to the 1.5 Ah lithium-ion battery (AC870015). The RIDGID MAX Output 4.0 Ah battery is compact and lightweight, which reduces user fatigue. The included 18V Fast Charger is 2X faster than the 18V Compact Charger (AC86093) and can charge the 4.0 Ah battery in under one hour. As always, the RIDGID 18V 4.0 Ah MAX Output Starter Kit is 100% compatible with all RIDGID 18V tools and chargers. Best of all, this kit is eligible for the Industry's Only Lifetime Service Agreement, simply register within 90 days of purchase for FREE Parts, FREE Service, For LIFE. The RIDGID AC9540 includes an 18V 4.0 Ah MAX Output Battery, an 18V Charger and an operator's manual.
  • Battery: MAX Output Batteries provide up to 2X more power compared to the 1.5 Ah lithium-ion battery (AC870015)
  • Battery: Up to 3X more runtime compared to the 1.5 Ah lithium-ion battery (AC870015)
  • Battery: Advanced electronics and innovative cooling technology for extended battery life
  • Battery: Compact size reduces user fatigue
  • Battery: Fuel gauge displays power level on the job
  • Charger: 5.0 Amp charge rate for 2X faster charging compared to the 18V Compact Charger (AC86093)
  • Charger: Charges both RIDGID Ni-Cd and Lithium-Ion batteries
  • Charger: Temperature indicator shows if battery is either too hot or too cold to charge
  • 100% Compatible: Works with all RIDGID 18V Batteries, Tools and Chargers
  • Lifetime Service Agreement with registration within 90 days of purchase
  • Includes: (1) R840040 18V 4.0 Ah MAX Output Lithium-Ion Battery, (1) R840095 18V Charger and operator's manual
  • RIDGID: Build for a Lifetime






  • California residents

Additional Resources

From the Manufacturer

Compare Similar Outdoor Power Batteries & Chargers

current product
Exclusive18V Lithium-Ion MAX Output 4.0 Ah Battery and Charger Starter Kit
Top Rated18V 6.0 Ah MAX Output Lithium-Ion Batteries (2-Pack)18V Lithium-Ion MAX Output (2) 4.0 Ah Batteries and Charger KitExclusive18V Lithium-Ion MAX Output 4.0 Ah Battery (3-Pack)
BrandRIDGIDRIDGIDRIDGIDRIDGID
Name18V Lithium-Ion MAX Output 4.0 Ah Battery and Charger Starter Kit18V 6.0 Ah MAX Output Lithium-Ion Batteries (2-Pack)18V Lithium-Ion MAX Output (2) 4.0 Ah Batteries and Charger Kit18V Lithium-Ion MAX Output 4.0 Ah Battery (3-Pack)
Price
$17900
$21900
$26800
$32896
Ratings
(191)
(376)
(304)
(195)
Battery Amp Hours4.06.04.04.0
Used with Equipment TypeUtilityUtilityUtilityUtility
Power Tool Accessory TypeBatteryBatteryBattery and Charger SetBattery
Voltage (volts)18 V18 V18 V18 V
View ProductView ProductView ProductView Product

Questions & Answers

Typical questions asked about products:

  • Is the product durable?
  • Is the product easy to use?
  • What are the dimensions of the product?

Customer Reviews

  • 4.8
    out of 191 reviews
  • 100%recommend this product
Filter by:
Showing 1-10 of 191 reviews
This is a powerful and long lasting battery. I was able to drill holes in cinderblock walls with ...
This is a powerful and long lasting battery. I was able to drill holes in cinderblock walls with my Rigid hammer drill for 6 hours of constant use! After that, I put the battery on the charger and it was charged within an hour, ready for another 6 hours of constant use. I really like the charger, not only does it charge batteries fast, but it also has indicators that make sense. A lot of the other brand chargers I have make you reference a chart or remember what a solid light means, what a blinking light means, what a green light means, what a flashing green light means, etc. This charger has an indicator with label for each status; as dumb as this sounds, its quite nice. The charger is also wall mountable. Overall, a great battery and charger set.
by
  • Recommended
3 found this review helpful
The 4.0ah battery kit is a great starter set if you are just getting into the Ridgid line up. I h...
The 4.0ah battery kit is a great starter set if you are just getting into the Ridgid line up. I have batteries and tools from many different product lines like yellow, green, blue, and orange, but the Ridgid line is my favorite. This 4.0ah battery is especially great with the power hungry tools of Ridgid. I use it with their cordless vacuum and it runs about 16 minutes on this battery and charges in about 45 minutes or so. If you are picking up their cordless vacuum, pick this battery as well! I also use it with their brushless circular saw and get many rip cuts from it. The sander and router are also using a lot of power, so I go to this 4.0ah (over the 2.0ah) battery for these tools as well. I have 3 of these 4.0ah batteries and keep one of them always installed on the hybrid fan, and another on the hybrid folding panel light installed on top of my workbench. Both of these tools are also power-hungry and go better and go longer with a 4.0ah battery. I use my 2.0ah batteries on the drills and impact drivers though. The battery charges fast and holds charge for months when not in use. I love the Ridgid tools and a strong battery like this is a must have with their powerful tool line up!
by
  • Recommended
2 found this review helpful
Anyone who owns Ridgid tools know they are high quality and will last and last and last. This up...
Anyone who owns Ridgid tools know they are high quality and will last and last and last. This updated 4.0A Ah 18V battery and charger kit is no different and its a great addition to the product line. My observations: • This is their newly designed battery and fully compatible with your current 18V Ridgid tools. • Because it’s ‘max’ output it will handle the heavier needs of some of the more power demanding 18V Ridgid tools. • I noticed right away this is a smaller and lighter battery than my older 4.0 Ah batteries. I took a side by side pic to help you see the difference. • Fuel gauge is bright and easy to see even in sunlight. • I used the battery on a variety of Ridgid tools and received plenty of power and consistency. • This kit comes with a battery charger. The charger can be wall mounted if you choose. It will also provide your normal readouts such as charging status, evaluate, Temp delay, and defective indicator. • Also, regarding the charger this is a fast charger which is designed to charge the max output batteries quickly (less than an hour). • The warranty is lifetime if you register it and follow the service agreement. I have quite a few Ridgid tools and batteries that have been put through heavy use at times. I’m happy to say I’ve never had a tool malfunction or a battery. This battery met my expectations and I recommend.
by
  • Recommended
2 found this review helpful
RIDGID 18V Lithium-Ion MAX Output 4.0 Ah Battery and Charger Starter Kit is a great addition to y...
RIDGID 18V Lithium-Ion MAX Output 4.0 Ah Battery and Charger Starter Kit is a great addition to your RIDGID tool collection. What is outstanding is that RIDGID now offers FREE BATTERIES, FREE PARTS, FREE SERVICE FOR LIFE! Just hold onto your receipts or tickets as proof of purchase. This battery combination is part of their MAX OUTPUT series. It comes with their 18v 4.0Ah MAX Battery which holds twice the power and runs for up to three times more. The charging base is a quick charger, doing the job under one hour. The top has all the illuminated controls and information pads, which explain to you what is going on. The charger can stand alone or can be mounted to the wall. All 18v RIDGID batteries are compatible with this charger, and can be utilized. This is a totally awesome package. I had my battery ready to go in under an hour and fully charged. Awesome product. Awesome quality. Unbeatable warranty! Can't go wrong with RIDGID. I rate this item 5*s out of 5. Thank you RIDGID for allowing me to try your product. Thank you Home Depot Seeds for offering this item to me.
by
  • Recommended
2 found this review helpful
I decided on the RIDGID battery solution because of the “Free Parts and Service for Life with Reg...
I decided on the RIDGID battery solution because of the “Free Parts and Service for Life with Registration”. It sounds good, but I am still concerned that a new version of the battery will be created and the old ones will no longer be compatible with future products. At least for the meantime I have the peace of mind that if anything goes wrong with the current model, I have some recourse for resolution. Some nice aspects of this battery solution is that the batteries are compact and have twice the power and up to three times the charge longevity of the 1.5 Ah batteries. They have a gauge that displays the power level. The charger has twice the charging speed as compared to the compact charger. They do have some weight to them as you would expect. Battery power type is Lithium Ion. I am in the process of converting from corded to battery power as much as possible. I have a variety of battery powered hand tools which are very convenient. I have been using a corded electric string trimmer and edger for some time now. I like that they immediately run every time you press the run trigger without having to use a pull starter like with gas motors. The only downside is pulling out the extension cord and then having to wrap the cord back up after using it. I know I might sound lazy, but at times I would go without edging/trimming because I did not want to hassle the electric cord. I look forward to replacing both of them in the near future with battery powered equivalents.
by
  • Recommended
1 found this review helpful
This new charger is great! I have the older charger and it takes more than an hour to charge the ...
This new charger is great! I have the older charger and it takes more than an hour to charge the battery, this one does a battery in under an hour. Additionally, the indicators on this charger are so much easier to read and understand, no more looking up what the blinking lights mean. As a bonus you get a 4 AH battery. That is good for longer use, but I find it awkward with the balance of the drill.
by
  • Recommended
1 found this review helpful
Received my order for the RIDGID 18V LITHIUM-ION MAX OUTPUT 4.0 AH BATTERY AND CHARGER STARTER KI...
Received my order for the RIDGID 18V LITHIUM-ION MAX OUTPUT 4.0 AH BATTERY AND CHARGER STARTER KIT recently and I wanted to share how we have used it. We were looking forward to the shipment as a committed user of Ridgid tools we have been pleased in the past with our battery based tools which have performed well. This new battery proved equal and provided additional performance as advertised even with our older Ridgid tools. We first used it with a drill and a sawzall for installation of a Closetmaid upgrade to the master bedroom. We specifically wanted to see if it performed as advertised and it did. No recharge needed for the closet project and then an outdoor project of cleaning up shrubbery.and tree limb storm damage. The resulting charge was as quick as advertised. We would highly recommend this new battery upgrade from Ridgid!
by
  • Recommended
1 found this review helpful
Excellent power and features. The Ridgid line keeps growing and I'm always excited about their ne...
Excellent power and features. The Ridgid line keeps growing and I'm always excited about their new products. This new charger and battery doesn't disappoint. I feel more torque in my impact with these new batteries. I'm happy they finally have the battery meter on the battery, taking away the guessing game. The charger itself is clearly legible to know the status of the charge. On top of it all, it comes with the lifetime warranty on the battery and charger, who else can even compete with that???
by
  • Recommended
4 found this review helpful
The RIDGID MAX Output R840040 18V 4.0 Ah lithium-ion battery is compact and light to reduce user ...
The RIDGID MAX Output R840040 18V 4.0 Ah lithium-ion battery is compact and light to reduce user fatigue. Four LEDs on the battery display the charge level. The R840095 Fast Charger is an upgrade from the charger included with RIDGID tool kits. It features faster charging and additional sensing diagnostics. The 5 ampere charging current is sufficient to charge the 4.0 Ah battery in under one hour. Temperature sensing circuitry adjusts the charging rate or prevents charging if the battery is too hot or too cold. Resistance sensing prevents charging if dead cells are detected. Three year warranty from date of purchase. RIDGID also offers an exceptional free LIFETIME service agreement if purchased at Home Depot and buyer registers purchase within 90 days. Made in China.
by
  • Recommended
1 found this review helpful
I had the RIDGID drill, and a RIDGID battery, but never had the charger for it, so I was in the m...
I had the RIDGID drill, and a RIDGID battery, but never had the charger for it, so I was in the market for one. This allows for 2 batteries to be charged at the same time, and they charge fast. The battery has an indicator light to show how much charge is left on it for during use which is helpful when doing some home improvement projects. When docked, there are indicators that help troubleshoot your batteries for easier maintenance, such as whether the battery is defective. Also worth mentioning, is this is compatible with all RIDGID 18v batteries
by
  • Recommended
Showing 1-10 of 191 reviews