Rated 5.00 out of 5 based on 8 customer ratings
(8 customer reviews)

$24.99

12V 9AH Sealed Lead Acid SLA Replacement Battery for RBC51

SKU: ML9-12111 Category:
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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: F2
Battery Dimensions: 
5.94 in x 2.56 in x 4.02 in
Weight: 5.10 Lbs
Warranty
1 Year
Multi Packs Bundled Savings

1 Pack, 2 Pack, 4 Pack, 6 Pack, 8 Pack, 10 Pack

8 reviews for 12V 9AH Sealed Lead Acid SLA Replacement Battery for RBC51

  1. Rated 5 out of 5

    Steve

    Does the job, fit well in ups

  2. Rated 5 out of 5

    Dad in Texas

    Bought this from vendor Mighty Max Battery to replace the old nonfunctional battery for my UPS. This battery physically is identically sized compared to the original battery and is a drop-in replacement for the TrippLite G1010USB UPS. It arrived fully charged and ready to go, registering all 5 bars on the UPS charge meter and over 12 volts on a voltmeter. The battery terminals are appropriately positioned and are the proper size. The battery is labeled 9 Amp Hours. Delivery took a week.

  3. Rated 5 out of 5

    Dad in Texas

    Bought this from vendor Mighty Max Battery to replace the old nonfunctional battery for my UPS.This battery physically is identically sized compared to the original battery and is a drop-in replacement for the TrippLite G1010USB UPS. It arrived fully charged and ready to go, registering all 5 bars on the UPS charge meter and over 12 volts on a voltmeter. The battery terminals are appropriately positioned and are the proper size. The battery is labeled 9 Amp Hours.Delivery took a week.

  4. Rated 5 out of 5

    Builder1

    Perfect replacement, great price

  5. Rated 5 out of 5

    TTX

    I have just finished installing this battery as a replacement in my TrippLite G1010USB. Like many people, I have some dead UPS units around. Replacing the whole unit is ~$120. However, the only real problem with the unit is the battery – so the choice was to try rehabbing a UPS for the first time for $22. Installation was easy. The battery arrived perhaps 60% charged (the little bar display on the UPS shows 3 or 5) and is plugged in now charging up to full. Note that this battery has the smaller F1 tabs while this UPS and the old dead OEM battery hve the larger F2 type connectors. This is not an issue, as you are attaching a larger cable connector onto a smaller tab. The connection is firm and tight. I did put 2 small pieces of electrical tape over the connections to prevent any possibility of an accidental short (ie, I dropped the screwdriver). The packaging made me a tad nervous when I first saw the box, as it was slightly crumpled during shipping and the battery is heavy. However, upon opening I found the packaging was better that expected. Crumpled brown (kraft style) paper kept the battery centered in the box. The battery itself has an inner plastic wrapping, and outer bubble wrap. After using a box cutter for the outer box tape, everything else was opened with no tools. Shipping arrival was ahead of schedule.

  6. Rated 5 out of 5

    skipp foote

    Battery fit perfectly and is performing as it should. Very happy with it.

  7. Rated 5 out of 5

    John Hawkins

    Wonderful product and reliable service. It works perfectly with my Tripp-Lite UPS (ECO 550), and it is better than the OEM with higher capacity (9AH instead of 7) at almost half of the price. A very good buy from Mighty Max; highly recommended.

  8. Rated 5 out of 5

    John Hawkins

    Wonderful product and reliable service. It works perfectly with my Tripp-Lite UPS (ECO 550), and it is better than the OEM with higher capacity (9AH instead of 7) at almost half of the price. A very good buy from Mighty Max; highly recommended.

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Excellent
Mighty Max Battery
Based on 5176 reviews
Cheap and charged may not last as long as other brands but for the price it's worth it.
When UPS delivered the U1 lawn mower battery, I was a bit concerned by one corner of the shipping box being bent. In my experience, rough package handling by UPS is typical. I wish more shippers would use Fed-X. The MightyMax box was also bent however the battery was not damaged due to the internal packing foam. I fully expected to have to top off the charge but it was already at 100%. After installation, the mower started much quicker than it has in years. I was aware of the AGM technology but was pleasantly surprised to see it was a dep cycle battery. Compared to the U1 flooded battery I bought last year from a local auto parts store, for the same price, this battery was an excellent choice.
Battery came as advertised. Fits perfectly and functions as it should be.
Battery arrived well packed and without any damage. I am surprised how heavy this battery is and how well it's made. It quickly fired up my Jet Ski without hesitation....I strongly recommend this battery brand
Easy to install .. Anyone can do it
Battery arrived quickly, securely and fully charged ready to be used
Delivered in 3 days, worked like supposed to in my dewalt jump starter
Arrived in 2 boxes. Not sure if I charge it first. No directions
Just got battery today so no long term review yet. Came charged and fit perfectly in my goldwing as listed. Seems like a decent battery so far.
This is the second Mighty Max Battery for battery Back-ups!!