Rated 5.00 out of 5 based on 5 customer ratings
(5 customer reviews)

$28.99

12V 9AH SLA Battery Replacement for Champion 3500/4000 Gas Generator

Availability: In stock

SKU: ML9-12NB1 Category:
Delivering power when you need it, the Mighty Max ML9-12 12 Volt 9 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 ML9-12 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: 9 AH
Chemistry: SLA, AGM
Terminal: Nut and Bolt
Battery Dimensions: 
5.94 in x 2.56 in x 3.94 in
Weight: 5.17 Lbs
Warranty
1 Year
Volts

12V

Amp Hour

9Ah

Chemistry

SLA / AGM

Terminal

Nut and Bolt

Quantity

1

Length

5.94

Width

2.56

Height

3.94

Weight

5.17 Lbs

Warranty

1 Year

5 reviews for 12V 9AH SLA Battery Replacement for Champion 3500/4000 Gas Generator

  1. Rated 5 out of 5

    jack polatnick –

    Disliked the positive and negative terminals being located next to each other. Had to elongate the negative terminal wire to make the battery compatible with my generator. However, the battery is powerful and starts the generator easily.

  2. Rated 5 out of 5

    Lee S Brown –

    holding a charge is good

  3. Rated 5 out of 5

    OX –

    Used this to replace the battery in my Champion Electric Start Dual Fuel Generator and its fired up first time without issue. Swap took 5 min and I was back up amd running. I previously put a pair of extension battery leads and quick disconnect spade terminals on it so I can quickly disconnect after use. The original leads may be a little short as these terminals are on the right side of the battery and not the front, this I cant confirm because I modified mine fro the original config. But it is the right voltage and amperage.

  4. Rated 5 out of 5

    Mark Oxley –

    Used this to replace the battery in my Champion Electric Start Dual Fuel Generator and its fired up first time without issue. Swap took 5 min and I was back up amd running. I previously put a pair of extension battery leads and quick disconnect spade terminals on it so I can quickly disconnect after use. The original leads may be a little short as these terminals are on the right side of the battery and not the front, this I cant confirm because I modified mine fro the original config. But it is the right voltage and amperage.

  5. Rated 5 out of 5

    Lois M. Charlebois –

    I got this battery to run a home generator. When it arrived, it was suggested that we charge it before use. My husband did not wait, but put it in the generator and tried it out. The generator started and he has been using it since. I would highly recommend this battery.

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Excellent
Mighty Max Battery
Based on 5526 reviews
Cool looking battery., will be placing in a Pontoon Boat soon. 👍
Received the replacement ML4-6 battery for my Coleman lantern and it was an exact match. I’m very happy with the battery and it works as it should. Update, ordered another mighty max battery. This time it was for my battery backup. Exact for and extremely easy to swap out. For $20 i got my $80 backup working again. Thank you mighty max battery another satisfier customer with an excellent retutation, i highly recommend.
Excellent Product and Seller!!!
I placed it as you can see from the old to the new on my EverStart Jumper as you can see in the pics it fit perfectly and I gave it a 24 hour initial charge on my house outlet with a thick orange cable and as I tried it it worked perfectly in all functions, I woulkd give it a 100% Excellent Recommendation!
I had an old harbor freight 3 in 1 auto battery jumper that no longer would hold a charge. This ML 18-12 MIGHTY MAX REPLACEMENT BATTERY, fits exactly as original and is holding a stat of charge greater than 13 volts after first time charge. The photo is the old battery. I've already installed the he MIGHTY MAX and don't want to open again.
Packaging was very good.
Let's see how long it lasts.
Works like original
They are what I ordered and they came sooner than I thought then was told to me
New home rough but comfortable
Excited to try a GEL battery and hoping for extended Life in Florida. Engine starter spins like brand new.
Great Battery!
Great price! Heavy duty!