Delivering power when you need it, the Mighty Max ML18-12 12 Volt 18 AH uses a state of the art, heavy-duty, calcium-alloy grid that provides exceptional performance and service life in both float and cyclic applications.
The ML18-12 is an Absorbent Glass Mat (AGM) technology with a valve regulated design, that can be used in enclosed and indoor environments without leaking or maintenance, providing a superior performance for thousands of models.
Mighty Max SLA batteries are utilized in a wide variety of applications including; Consumer Electronics, Electric Vehicles, Engine Starters, Golf Carts, Hunting, Lawn and Garden Tools, Medical Mobility, Motorcycles, Power sports, Portable Tools, Solar, Toys and Hobby, Access Control Devices, Emergency Lighting, Security and more.
Specifications:
Voltage: 12 Volt
Amperage: 18 AH
Chemistry: SLA, AGM
Terminal: Nut and Bolt (NB)
Battery Dimensions:
7.13 in x 3.01 in x 6.57 in
Weight: 11.90 Lbs
Warranty
1 Year
David D. Griggs –
powers a skeet thrower well
Troy R. –
So far so good. For in my generator and starts it with no problem.
JB –
This battery did not last our first cold night here in Florida. I am handicapped and use my riding mower to pick up my mail and paper at the end of my drive way. Battery was less than a month old and was completely dead with one night of lower 30 degrees. had to keep charger on every night so the mower would start in morning. Finally went to auto parts and bought regular mower battery for about the same price, now no problems starting even in upper 20 degrees
Nate –
Brought my jump starter back to life
D. Harrison –
This is my second Toyo clone for use in a 1982 BMW R65 motorcycle. The first one lasted 10 years and this one seems identical. It is looks identical to a Westco branded motorcycle battery that cost more than 3 times as much. All the mold lines on the plastic were in the same places as the Westco. It arrived fully intact and with about 80% charge. I fully charged it before putting it into service, old habit of mine, and it started the BMW instantly, as it should. If this lasts even half as long as the previous one, I will be very pleased. There is one slight modification that I needed to do, same as the previous one. The hardware is slightly smaller in diameter and the power tabs needed to be reamed out a little to fit in the hardware I use, took all of 5 minutes, most of which was finding my reamer.
N. Lappos –
Arrived on time, fully charged, perfect condition
Michael W Stevens –
Great price
EM –
Exact replacement for my 11 year old DR Power (circa 2009) brush mower. Battery came charged and started mower right away. It has only been a few months so time will tell how long this battery will last.
G W Renzelman –
Fits my Briggs generator
ELIJAH WATSON –
Good battery for the price.
Fred Majewski –
It arrived as promisedI don?t have a feeling for longevity since I only installed it a few months agoThe battery arrived fully charged
Mike in Oregon –
Perfect replacement for the battery in my portable jump starter/compressor. It works again!
Eric –
Worked just fine
Mark –
Nice battery, perfect replacement for my generator
Kathryn Seymour –
Don’t know about the longevity as we just purchased it a short time ago. It is a replacement for a Generac generator battery. This particular brand of battery has served us well in the past in different forms.
Megen –
Great buy but to big to fit on generator
Gordon C –
Was an exact fit for my Ridgid generator
stinky –
Very nice drop in replacement for my harbor freight jump starter. I just hope this battery lasts a lot longer than the first one
Sancho Erni, Jr. –
This battery replaced an 8 year old battery in my Westinghouse Generator. Works properly.
Papa Scott –
It was an Exact size and fit for my Battery Booster Pack. I won’t know how it is in Longevity until I put it thru a Few Uses. The Battery Holds a 13V+ Charge well and runs the Air Compressor in my Booster Pack ver well. Hoping it Last Longer than the Original Battery that was in the Booster.I carry this in my Vehicle and that way I’m prepared. I also like being the Good Samaritan if someone needs a Battery Boost in a Parking Lot somewhere, ‘m Glad to Assist! Cheers
Harwell Family –
Works well
Bob L. –
The battery was not fully charged when i received it . It took the charge to full quick and i have had no problems .The battery is working fine and i expect it to hold up .
Gerry –
As advertised
lloyd –
For my generator only started it twice so far so good
Patrick M. –
bought 2 for 2 different boxes.fits both perfectly. comes fully charged.
SWaggoner1 –
I was completely satisfied with this battery when I received it. It was very easy to install, fit my machine perfectly, and has tremendous starting power.
Jeff vollstedt –
2AH more than what originally came with generator.
Kevin Conley –
Great battery for less price
SF –
Physical configuration was right on for replacing the battery in my Black and Decker tire inflator/power supply.Battery shipped with better quality screws than were in my inflator, which was appreciated.
PenroseTribar –
Bought to replace the original UB12180 in our 9-year-old Energizer All-in-One portable charger. Same size, fit like a glove.The Mighty Max arrived almost fully charged, well-packed and within only a few days. Included were new nuts and washers for battery posts.
MINGSUEN YEH –
Nice item, Thanks!
CT FLIER –
Fit perfectly and was an exact replacement. So far so good. No issues.
titans –
Was a perfect fit in my jumper box.
Dave987 –
This thing work great right out of the box for a generator can’t beat the price.
Sawdusty –
came charged and ready to go! does what it says it will.
Michael B –
I was gone for three months and came home to find the starter battery for my emergency generator was completely dead even with a trickle charger running constantly. I ordered this battery and it arrived quickly and was fully charged. Can’t speak to the longevity because I just got it.
old hot rodder –
purfact fit. droped right in and fired my gererator right up
Keith Brandon Ponton Jr. –
Im not sure about the longevity as far as years but it seems to be a great product. Small, lightweight and installed on my children’s ride along toys, has lasted hours and hours. 2nd time byyer.
Olan –
I used this as a replacement for a PL 18-12. The dimensions were identical and it fit well when replacing my old battery. I?ve not had a chance to use the battery installed in my jump starter so I can?t comment beyond that. As for value for the money, the price was much more competitive than other brands.
Marcio Pereira & Filipa Gaio –
Great battery for 12v power wheels
Ashu –
Bought it to replace a dead battery in the jump start/inflator that I had bought fromCostco 5 years back. This fits nicely and did the job.
greg h. –
When the battery totally discharges it can be hard to charge the battery again. Some can be recovered and a fewwill not recharge, but almost all brands of these type of batteries can do this. I use about 50 batteries in thefield and have about a 10% failure rate
Bruce E. –
I can only say it came quickly…I?ve bought it before…and it lasted a long time, as a lawnmower starter battery. Haven?t had it long enough to this time to get this battery?s longevity! It?s easy to install, but it will depend more on the equipment you?re installing it into…your equipment may make it hard to install…not, the battery.
Steven E. Sands –
Good price. Fit my Champion generator perfectly, and now I am ready for winter poqer outages.
Joe Klinetob –
Good item
AuZZie –
Bought this for my JNC 400 and charged it overnight and works mint. Will see how it holds up after usage and recharges. But fit perfect
Don E Ho –
Fit in battery compartment using only 25% of the space of the battery it replaced. Boost starts instantly!
Stephens215 –
I needed to replace the battery in my generator (Troy-Bilt 7000 watts), and fortunately I ordered this battery and replaced it just before hurricane Sally hit us directly. We live North of Pensacola, FL and were hit directly by the storm. Power was out for 4 days and the generator worked perfectly with this battery.I had checked around town at a few places and no one carried the type of batter I needed for my generator. This Mighty Max was exactly what I needed.
Ian Haynes –
Used on a 1985 Honda XL350r. FIts into the bike perfectly.
AC –
Bought only mighty Max batteries for all my battery backups and my jump starter.What was $60 in 2013 is now $80. So a $25 battery to keep my jump starter/air compressor going was worth it. My original battery was from 2013. Naturally you can’t find the same battery. Let’s see how Mighty Max holds up on all my products.Should one of them fail prematurely, I will move on to another brand.
Carmen I –
Good price when comparing the watts, fast shipment and excellent shipping package.
robert Kleigleng –
so far working working well we will see how low it last
Rherrada84 –
Used this battery to replace a battery in a Diehard Portable power pack. It works like it was new now.
rayraygillinger –
Charges well everytime
Mone –
Used the battery to replace existing battery in my zero turn lawnmower. Dimensions we exactly as described and fit perfectly.
Mark –
Good battery
Lester M. –
Perfect for small solar setups in barns or greenhouses. I own two of these in this type of setup, and swear by them!
MoonDoggy –
Be prepared to modify the battery hold down. The original was way too short.
Thorin Labby –
I have ordered 13 of these total, one had to be replaced due to the shipping company mistreating it. took care of it right away. I am using these in an APC UPS, and they are working great.
c banks –
Came charged with post nuts and bolts… Double boxed and padded for shipping….
Gilberto Vega –
Marcus Briley –
This battery was perfect fit for my generator will have to see how how good and long it?ll last but I?m thinking this year maybe I can get a solar battery temp tinder so that it doesn?t run down Nick?s, maintain a battery so if I need it it?ll actually work.
Customer –
Good battery for the price. Just bought and will see how long it last.
sonic –
Got this to replace a 6 year old battery in the portable battery jump station. The battery size is a good fit but the connection was not straightforward. I had to bend both the battery posts to connect.
Customer –
So far so good!
M. Carder –
Seems to work well as a replacement for my generator. Have not had it long enough to test for durability.
JOSE VERA –
I arrive in good condition and it works very well
Dom –
Had to modify the wires to fit the battery terminals. Wasn?t hard at all to install. I haven?t tested it yet but I did charge it. It didn?t charge to 100% but that may very well be the LED lamp is burned out.
Brendan C. –
I was in a hurry for a cheap battery to get my lawn mower going again and ending up buying this. If I were to do it again, I probably would have bought a bigger battery, this battery is pretty small and has just enough juice to turn over the mower. My fault for thinking this was a lawn mower battery, but it works so I am not complaining. The mower doesn’t turn over as quickly as my last battery, but it still starts and that’s the only thing that matters.If you have a riding lawn mower, I’d recommend you buy a larger battery. That being said, it works!
RevJayG –
The charger is great. The former battery ran out of goodness. After some difficultly removing the old one the new went right in the box, wired it up, gavel it a full charge and it did the trick.
Happy Camper –
Slightly lower capacity (18ah) than the original battery (22ah) and slightly lower initial amps, but more than sufficient to get most cars and SUVs going in any situation.Perfect fit and easy replacement for a Clore Automotive JNC660 jumper pack.Can’t speak to longevity yet since I just received and installed it.
Mattieg –
Worked like a charm I hope it lasts
Michael P –
Fit perfect as a replacement battery in my champion generator 7500k. Same size as OEM and came with new nuts and bolts and charged ready to go.
Mike –
works great
ANON –
I have had a Champion 7500 Generator I bought just after Sandy. Been unused and battery was not on a trickle charger so I replaced it with this one. Came charged enough to crank up the generator immediately. Very pleased ??. Now it is on a trickle charger and I will be more ready for the next blackout.
Mark –
I got 7 of these for my car. All powered by my solar panel. I can live off grid (no gas usage) for 4 days on these cells. Must mout upright. NOT on the side. They leak when on the side. Must have for the prepper or any solar use.
Rich –
Replacement battery for my 8 year old generator. Seems like the thing was at my door by the time I closed my computer. Fit perfectly and appeared to be fully charged upon arrival. Best price around for that battery. Very pleased. Great Job.
Customer –
Used for a 8000 watt generator. Works great, more than enough cranking amps. Can’t wait till winter time and see how it holds up. Can get quite cold here.
Joseph T. –
worked great perfect fit
Customer –
Battery won’t hold a charge!! Unfortunately I didn’t install it right away and passed the return deadline.
shi11001 –
Used several times real good
Joe S. –
Easy to use and easy to install.
jush jones –
works well
Scifigrrl –
My older Earthwise Model 60120, 24v electric mower no longer sells their replacement battery so I have to compile a suitable battery pack myself from time to time and two of these worked great and for a better price than most other options.
AMIE C –
Worked great for my battery jump starter
It is a wonderful day! –
My old battery was long gone and I couldn’t not find a replacement locally. This fit perfectly and now the engine starts and runs. I am a happy camper now.
Andy Reed –
These work great for my homemade portable solar generator project.
Kevin Wetherell –
best price I found and the exact one I needed
Steve C. –
These were exact fits for my Homelite lawnmower. It’s alive again! Hopefully for another 4 years..
Templer –
I used it for replacement battery for Costco tire air station.
anatoliy –
Like
Tony –
I have just added plenty of years to my Stanley Fatmax 450AMP jumpstarter purchased on 2014. The fit is perfect. OEM quality. Very easy to install. Hope it lasts as long as the original. Will update as time goes by and the unit is used.Update 08/01/20: Had to jump start wife?s RAV4. Worked like a charm.
Michael Skersick –
Got this for my kayak had it for 2 years and still going strong awesome battery
Chris –
My scooter takes two batteries. They are in a plastic box. Need a long handled screw driver to get the screws out of the case. Then you see the two batteries. Pull out old dead batteries. I had to tug a little. The old batteries were valcoured on the bottom. Easy to install new batteries.
Michael –
Good as replacement for Powerstation.
Capt –
I have bought a number of 12V batteries from . This one came very quickly. The battery was in great condition, safely packaged with plastic caps on the terminals and new nuts, bolts, and washers in a plastic bag. It comes pretty well charged, but I charge new batteries with a smart charger. It worked ok, but for an 18 aH battery it did not last as I had expected. customer service quickly resolved my issue. Overall, very happy with this brand. It is solidly built. The terminals and bolts securely hold my cables. My charging clamps fit securely enough onto the terminals. I try to buy from sold and fulfilled for batteries as customs service adds to the confidence I have in buying SLA batteries online. I recommend this battery and brand.
Customer –
Great replacement for my car battery jump starter.
Carl Davis –
Item was delivered on time in excellent condition. The battery was a replacement for an older faulty battery inside jump start box. The battery arrived fully charged. A very good replacement value as opposed to buying a new jump starter box.
N. Franke –
I purchased this for my champion generator. Although this is 18 AH and the one it came with was 15, they are exactly the same size. It cranked up the generator just fine. Unfortunately champion generators are unreliable garbage, but that?s a different issue.
thomas Thurston –
Perfect replacement fit.
Jesus escutia –
I use the battery for my riding lawnmower started right up.
walter brunoni –
nice and compact alittle heavy for a back packtho
Kjoe331 –
Arrived As Listed! Lots of power! Good to go!
James Walth –
Perfect fit
James R Bates –
Troy-Bilt mower battery died after three years. Installed this on and it spins the motor faster than the old battery ever did. Seems to be a winner.
Cheesus –
Works great for my snowmobile. It starts up and seems to hold a charge!
MDHarmon –
To make this work I used a 3/8 inch aluminum deal that is about 5/8 inch long and used a couple of M5 bolts that are 25mm long.I cannot see the icon to add an image to show what I did to make it work nicely with my jumper box.
Earl1943 –
I put it in a battery box, hooked it to backup that had a dead much smaller battery and it is doing fine!
Antonio S. –
Box is in good shape,battery is fully charged so far so good it?s newly installed.
Payan –
Fast
Mittens –
But, I’ve only had it for two months. We’ll see how it holds up.
Customer Chabely –
Perfect
Mark piotrowski –
Brought my craftsman jump box back to life, if you charge yours and it says it’s at 100% but it doesn’t work it’s the battery and it very easy to change.
Doug m –
I installed it today and I am charging it up. Will see how it works.
Customer –
Great price and electric start worked again after replacing 5 year old battery.
Bob Adams –
I bought this to repair my Harbor Freight jump pack. It fit well and works like it should. I have jumped many cars, trucks, mowers and tractors with it. It was worth the money to me.
Brad Shea –
Exactly matched replacement. Well packed, easy to install, working great so far.
JJ –
Update: Added load so bought a second one of these. Same as before, charged, great packaging and ready to! The first one has been perform great but the added load I just couldn’t get the 4 hours of run time I needed. Still very impressed!Can’t yet speak to longevity, but battery arrived charged, undamaged (great packaging actually) and ready to go. Using on a single 160w solar panel to run garden lights.
Alex Divov –
Does exactly what it says on the box!Buy it with confidence.
Kristen Jolly –
My Champion brand propane/gas generator only cranks on gas if you have a good battery. When my battery went out I had to use propane. I installed this battery and it now cranks fine and I am up and running again.
Julio3320 –
Es muy buen
Brenda –
So far I like this little battery. It keeps all my gadgets, fans phones and stuff charged for days. I have recharged my things many multiple times over a week and it’s still giving me complete recharges on phone and fans.
Tom –
For a DIY person this was a perfect fit replacement for the original battery in my Honda Black Max 8500 watt generator. Great deal! The electric start works again. IT’S ALIVE, IT’S ALIVE!
Lisa –
good price, fast free delivery, perfect fit
CDN_Hamster –
This replacement battery matched the size and hardware requirements of the OEM supplier
I KICK –
GREAT PRICE FAST SHIPPING
JLCG –
This battery was used to replace a portable charger. The overall size fit fine but the post were not aligned like the original. It took some work to hook then up to the connectors. The battery charged in no time and so far so good.
OldArmyVeteran –
Perfect replacement for Schumacher XP2260. Brought new life back to it and simple install.
EagleClaw –
Dunno bout longevity but came fully charged, i measured voltage was 13.8 before installed in my 7550 watt generac generator, fired right up. Was well packed in box for shipping. So far, I?m happy with it.
steven rosson –
Excellent product Great quality exceptional value direct replacement works like a champ
popop –
I actually haven’t used these yet but I have bought 8 batteries from this same company and all have been great
Tom J. Molina –
Fit perfectly in my Sam’s Club Blackmax Generator with the Honda engine.
Lawrence M. –
easy to install, works on a battery jump start.
OtherMick –
This battery replaced the dead battery in my West Marine Sea/Volt battery booster pack perfectly, did not want to discard my West Marine Sea/Volt as it is a water tight unit and expensive to replace with another similar waterproof booster pack, decided i had nothing to lose in dismantling it to see if the internal battery was a off the shelf replacement, took the number and put it in the search, this Battery was listed as a replacement, fit perfectly and saved me a lot of money over a new booster pack. plenty of power, recommended!.
Customer –
This powers my mighty mule 271 automatic gate great and stays charged with a 10w solar panel with 8-10 cycles a day during rainy season.
JayTee Video Master –
My no name portable battery jumper/light/air compressor battery died after 8 or 9 years. Pretty good use out of something we bought on clearance for $15.So the case of this unit was well made and had decent cables so I opened it up and looked for a similar battery. Sure enough. . . to the rescue!Now, while this battery still cost some $37 I felt it worth to replace given the use we got out of the original. This battery and terminals are EXACTLY the size and fit as the old battery.For now. . it fits, does the job and can only hope it will last a good long time with occasional use.Note: – — we would place the original portable unit connected to it’ s charger 2 or 3 times a year to make sure it was ready for the emergency uses. It served us well numerous times. So plan to do the same using this new battery,
Jerry V –
Replacement for old battery. So far so good.
Bri-ko –
I’ve owned a Husky portable auto starter for quite a while but the battery went dead. I finally decided to revive it by installing a new battery. The Mighty Max did just what it was supposed to. The connectors were exactly like the original and the fit was perfect so it was easy to replace. I’ve only had the battery for a short while, about a month, so I really can’t speak to the longevity. Just hoping for the best.
Tim –
I purchased the battery to replace a similar 12v 18ah SLA battery in a 12 year old Wagan Power Dome 400 power supply. I removed the old SLA battery and replaced it with the Mighty Max. Mighty Max came with the two screws, washers and tension washers needed to attach wires to the battery. The battery is now installed and charged (using the original Wagan DC wall charger). The Power Dome is now ready to go.
USER2020 –
good product
M. A. Flora –
So far I?m happy with this battery it fits my generator and is holding a charge. Not sure I could ask for more.
Daniel Worthy –
Works great
Mike1999 –
The previous battery in or generator was also a Mighty Max and it was at least 4 years old so I decided to stay with the same brand. The generator is stored outside with just a cover over it and has always started without issues with the Mighty Max battery regardless of the outdoor temperature.Hopefully this new Mighty Max battery will give me another 4 years of use.
JohnG –
It works great with my generator
Kevin M. Monahan –
The battery was for my portable generator. Fit perfectly and arrived fully charged. Perfect!
Rick –
Replaced the original battery in my Stanley car charger/Air compressor. Perfect fit, size.
R. Langley –
Good value
Wes –
I purchased this sealed battery to replace the old battery in my portable car jump starter. It was cheaper & better for the environment then buying a new portable 12 volt jumper. I’m happy with the purchase.
Nathan H –
Good replacement battery for a battery jumper box
James M. –
I use these batteries in my astronomy power packs. They provide several nights of power for my mount and my telescope gear. They are perfect replacements for the Celestron, Meade, and Orion 17Ah power packs.
Mike –
If your buying this battery to replace your jumper box battery be prepared to bend the battery cable ends in your jumper box. The battery leads are 3/4 further in than the original ones. I’ve been a mechanic for 47 years. I did get it done. But the average back yard mechanic or home owner (MAY) have a big problem. Spoke with a couple of other jumper box owners that bought replacement batteries and could make the battery fit. Now I have two more to do…
PAUL –
This replaced a 6 year old Interstate battery in my generac generator. Price was great, shipped in one day, came close to fully charged and works perfectly.
Winston Gordon –
Ok
Kimberly M. –
The battery was perfect
bob callahan –
fit my 10 year old blackmax with true Honda gx390. Started right up and will use with battery tender.
David A. Hegedus –
very please with results . if this replacement works as long as the original, it would be well spent.
Tenshi X –
I bought this as a replacement to the original SEL brand 12V 17AH battery in my Stanley Fatmax 450AMP jumpstarter. It came in a box padded with styrofoam and wrapped inside a plastic bag.The original battery in my jumpstarter has hardly ever maintained a GREEN status LED after charging. Despite the so-so YELLOW condition, my jumpstarter has saved me and others several times over the years. However after 8 years, the original battery became very weak and has started corroding at the terminals (which I had to repair).Now, for the first time after installing the new Mighty Max battery, I test the air compressor – works super strong, fast, and peppy even after an initial YELLOW status self test, 12.7V. I charged the new battery inside the jumpstarter using my separate smart charger for 40 seconds and it quickly indicated it finished the charge. I then used the jumpstarter?s self test again and it was GREEN, 13.45V. It maintained this GREEN status much longer than the original battery!Another cool thing is that this battery even included a baggy with the correct size nuts and bolts for the terminals – which I needed because the original nuts and bolts were permanently corroded and fused to original battery.So yeah, I am pretty pleased with my purchase. I ended up with a more powerful jumpstarter than when it was brand new 8 years ago.
Erv & Dori –
Excellent fit! Reasonable price! Would buy again!
Ratherbshooting –
Closest specs I could find to use as replacement battery for Cobra cjic 350 jump starter/battery pack. Fits pretty good you just have to watch hooking up positive leads. Battery was fully charged and took initial charge after one use. We’ll see how long it lasts. Happy so far.
James F Werring –
Needed a battery for my generator, good replacement priced right.
Timmayyy –
Great replacement battery for my APC
Paul G. –
Just like my original and comes ready to go.
N. Goering –
This is a solid battery for use with mobility scooters, but make sure to recharge at least every 2 weeks. SLA batteries have a tendency to sulfate over time if not charged every 2 weeks or so. These batteries will last 2-3 years if regularly charged.
Phil Craig –
Fit my application perfectly
Average Joe –
Fits, works. Only time will tell how long, but I expect it is a good battery. Note: Delivered 2 days BEFORE PROMISED, nice!
Robert Dagg –
Perfect fit.
RNBI0MD –
It’s a great replacement for my old vector jumpstart, Works well.
GG –
Good price and the exact replacement for my TroyBilt 7000watt generator
Chris –
Battery is as advertised no complaints whatsoever.