Delivering power when you need it, the Mighty Max ML18-12 Internal Thread 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 Internal Thread 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: Internal Thread
Battery Dimensions:
7.13 in x 3.01 in x 6.57 in
Weight: 11.90 Lbs
Warranty
1 Year












Anonymous (verified owner) –
doug hartsoe (verified owner) –
louie barfield –
easy to install
North woods –
Was not a direct replacement for the battery it said it was. Plarity incorrect for my application and battery could not be turned to accommodate wrong polarity.
mpde –
Works great
elton wyborny –
Exact replacement size.
Henry Jenkins –
Easily installed and worth the money.
SSmith –
It fit perfectly into my Troy Bilt Generator.
Web Customer –
does the job
steve w. –
Snow Blower
joyride –
Value for money spent
Brenda –
nice thank you
fjhh –
Works in the cold for a generator.
David J. Boggs –
Delivery is fast and the price is right. Ran into small problem with the 2nd one I bought. The screws were a little too long and the negative post would loose ground contact. Have to tap on it once in a while to make it work. It is usable but a little aggravating when you first install it and nothing happens. And no, I did not use the too long screws and twist the post too hard, it came that way.
david q. –
PERFECT FIT !!!
Richard Motes –
John C. –
I got this for my jump starter after I tried to charge the old one that was in there. It would not take any charge so I got this one and charged it up. Its only two weeks later now but she’s still at 13V 100%. I’m very happy with this battery and hope to have it as long as possible. Great price packaging and delivery too!
Adam T. Lewis –
Nice battery just like the one I took out.. perfect replacement. Longevity I don’t know. Just got it. Put on fired right up.
Web Customer –
Easy install fit my generator
Anthony –
Fit perfectly and started o first turn of key. Delivery was 4 days less than expected.
J. Crafchun –
great batery for the cost
Customer –
Works good for the price
John Sterrett –
used forelectric generator, does the job
Bill S. –
Works as advertised!
BR –
Plug and play for the old battery. Came fully charged and started the generator right up.
George T. –
Be careful as to location of +and- terminals for your application. I had to stretch cables.
Rob –
I use this battery for my Briggs & Stratton generator. When I was choosing the appropriate battery there were two similar ones, except one had extra letter(s) in the model number, like R or RP and was a little more expensive. I spent a couple hours trying to figure out what the difference was between the battery with no letters and the one with letters. It seems it just means the “+” and “-“ poles are on the opposite side of the battery (right side and left side). Just mentioning this for anyone else who may be confused and needs the poles on a specific side due to the wiring placement on their equipment.
Grand Girl –
Good value!
Web Customer –
Fit my generator perfectly!
Customer –
Fit my generator perfectly!
matthew c braun –
Good
matthew c braun –
Good
Virginia Logsdon –
Service and delivery was outstanding.
Evelyn K. –
I ordered one of these last year and it was just a year old went it went bad.
An Ol’ Longtime Customer –
This was just the battery that I needed for my push-button start on my generator. It arrived with a full charge and was easy to install. A perfect fit!
Texas Customer –
Worked great in my 1997 BMW R1100RT.
All Texas Process Servers –
Worked great in my 1997 BMW R1100RT.
reynaldo gonzalez –
Excelente me funciono perfectamente
Pamela Stanhope –
It did the job.
Customer –
Bought this battery for a generator. Received in a timely manner and product was as described.
Larry Wells –
Same exact as described
Gary Banks –
Ease of replacement
claire osowski –
quick delivery for generator
Rider –
Worked as advertised
Arno E. Jones –
Only time will tell how long the actual battery lasts, but the advantage this battery has over the others is the screw-in post. The other batteries look like direct replacements, but with the posts positioned about 3/4 further in that the original battery, I could see I would have problems getting the cables to reach, and to bend in the proper orientation. With this battery, I just bolt in the jump cables and I’m done. Perfect fit and it couldn’t be easier. The battery was charged and ready for immediate use. I would buy this again.
Robert E Feuer –
this is a replacement for a gate opener battery. it fits and it works even at -15 degrees
Sara Higgins –
Worked out as expected
Willie Jones –
Like
Sam sung –
Works like original equipment.
Alan Creveling –
Replacement generator battery, good price, correct fit, timely delivery and well packed.
Ralphy –
Generator
Marie Wilson –
Installed the battery and it works like a charm.
brad –
different manfacture but exactly the same as old battery in generator….check +/- orientation, wires on my troybuilt generator are only long enough to reach one way
Randy Bochmeyer –
It works great as a replacement battery for our generator.
M. Dill –
Bought this to replace the original battery in my generator. Fit perfectly, started right up!
Marine7089 –
Very strong output. Will update after getting more use out of it.
Albert E. Maykel,Jr. –
Fast delivery. good quality. Polarity was opposite but had just enough extra cable to install it upside down.
Putt –
About 11 years ago i did a natural gas conversion on my generator, which was one of the best things i have done. My generator is a 7000, 13 HP with electric start. From the first day i started it, it never cranked over like it did with this battery. I was amazed. Both batteries have the same identical technical specs, but this Mighty Max really started the generator. I haven’t had the generator running for a couple of months or so and after topping off the charge on the battery with a Tender Jr., I swear it turn over once and immediately started. Good buy. You won’t be disappointed, AND the packaging was very good. I read some reviews on other similar batteries where the battery didn’t even show up, or the packaging was so bad the battery was damaged. This packaging was really good considering the weight of a battery. Good job…
Edwin Mathews –
great price
james franklin –
It fit my generator , and works
MRMAC –
I bought this battery to replace the one used to start my generator. Works perfect. Thanks.
boaziggy –
Fit our Craftsman generator perfectly! Relatively easy to install.
William Lampkin –
A+++
chuck –
Fits my generator perfectly
Tuan Nguyen –
Looking good.
Beau. –
Thanks . Work awesome
Petra H. –
Mighty Max batteries are very good Customer service was awesome
Customer –
perfect replacement for original
Customer Joe –
Exactly as described.
Trisha T. –
Used for a house generator.
Neil R Bilby –
When I ordered this battery I wasn’t absolutely certain that it was the right dimensions for the compartment on my black max generator but the description was putting it very close to the size I needed. I ordered the battery and installed it without a problem. It fit the battery compartment perfectly. Connected the cables and with a turn of the starter key it was cranked up and running. Excellent product! I highly recommend this battery to anyone who needs one for their BlackMax 7000 Watt Generator.
Paulette Groet –
Very pleased with product.
Rich –
Electric start for generator. Replacement battery fit without any modifications. Generatoe starts well.
Mike –
This battery is a perfect replacement of my 7-year old battery for my Troy-Built generator. I test my generator monthly and last month would not start. Works GREAT again !!!
Nelson Jaramillo –
I used to replace the original batteries for a Duracell PowerSource 1800
Jeff Bedenbaugh –
This is my second purchase of a mighty max battery, and I have been very satisfied with both the performance and the service life.
Helen from NY –
Product was delivered timely and product is exactly what I expected.
Rawbone –
Product fit my Briggs and Stratton generatorLike a glove . Works like a charm !!!13,500 generac.
Kevin Eric –
Arrived on time and started my 2006 Harley Road Glide without issue.
DMB –
Bought this for my generator and it works great…
William Conner –
Great for low current applications. Arrived as advertised and weighs about 12 pounds
Gene L. –
Right size, charged quickly and holds a charge.
Matt V. –
I bought this as a replacement battery for my Paul Buff Vagabond II to power my Alien Bee flash units. This unit has slightly less capacity than the original battery that came with the unit (18Ah vs. 20Ah), but it performed flawlessly during a 2.5 hour photo shoot. For anyone considering this as a battery for their Vagabond II, it’s essentially a drop-in replacement.
Ralph G. McDonald –
Exact fit in my generator’s battery compartment, and the correct internal thread terminals.
Brain Power –
great
Butch –
okay
Rick MacDonald –
as advertised, quick delivery will order again
John J –
It came New and, while there was power, it just sparked. I put a trickle charger on it for 2-1/2 + days and it still wouldn’t start a ‘used’ generator. To the shop for overhaul and they put the battery on ‘full charge’ overnight+ while they overhauled the carb. Shop said it needed it – badly. It works like a champ, now. Was it the battery? Was it the Carb? Since the generator had sat for a while, probably more the carb’s fault.
Edward Townley –
It was here fast. I installed it right away and it started right up very pleased.
bensonjon –
Easy install. Direct replacement for my generator starter battery.
Kk –
Works let ke a charm!
Customer –
Worked great. Engine started right away.
Douglas A. Lashmit –
Shipped quickly and worked fine. Exact size replacement for original battery.
Steve K. Shepherd –
My generator called for the reverse pole model but the cables were long enough to use this oone which was almost half the cost. Works great.
Customer –
This was a perfect replacement. Hooked it up to my old generator and one push of a button and it cranked up immediately.
Frank F. –
Excellent buy. Fit my Briggs generator perfectly.
Customer –
Great price, and OE quality!
Ben Douglass –
What I needed
Enchanted –
Great little battery. Just right for my generator.
Dave Rolston –
Exactly what I needed and received promtly
Mark U. –
work great, good price.
Customer –
Thank you
Customer –
Fit perfectly and works as intended
Joe Caramella –
My portable generator now starts with one press of the on button. Good price !
Erik –
Perfect for my generator! Everything fit easily and like new
Daryl S. Burke –
It fit into the generator but I have not had to use it. Just keeping it charged. Glad that screws were included with the battery to attached the cables because the original screws were to big for this new battery.
TB –
good product
James Shires Jr. –
Bought to replace battery on Troybilt Generator fit great, works great.
James P. –
Good price , works well.
Paul K –
Works great – just as advertised
Customer –
Price was great! Arrived quickly and was the right battery for my generator!Would definitely purchase another if needed in the near future!
Abel –
Bought it for my gas powered generator, correct replacement
Stephen Jakubowski –
worked great
Jerry –
No screws and washers included.
Marcus G. –
great product..!!
Scott Clemons –
Great battery…
Customer –
good product
Mark Winningham –
Thank you