ML18-12 - 12 Volt 18 AH, Nut and Bolt (NB) Terminal, Rechargeable SLA AGM Battery
ML18-12 - 12 Volt 18 AH, Nut and Bolt (NB) Terminal, Rechargeable SLA AGM Battery
ML18-12 - 12 Volt 18 AH, Nut and Bolt (NB) Terminal, Rechargeable SLA AGM Battery
ML18-12 - 12 Volt 18 AH, Nut and Bolt (NB) Terminal, Rechargeable SLA AGM Battery
ML18-12 - 12 Volt 18 AH, Nut and Bolt (NB) Terminal, Rechargeable SLA AGM Battery
Rated 4.83 out of 5 based on 6 customer ratings
(6 customer reviews)

$39.99

ML18-12 – 12V 18AH UPS Replacement Battery for APC RBC11, RBC7, RBC55

Availability: In stock

SKU: ML18-1221162 Category:
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:
7.12 in x 3.00 in x 6.50 in
Weight: 11.90 Lbs
Warranty
1 Year
Volts

12V
Amp Hour

18Ah
Chemistry

SLA / AGM
Terminal

Nut and Bolt
Quantity

1
Length

7.12
Width

3.00
Height

6.50
Weight

11.90 Lbs
Warranty

1 Year

6 reviews for ML18-12 – 12V 18AH UPS Replacement Battery for APC RBC11, RBC7, RBC55

  1. Rated 5 out of 5

    mjstefl –

    Holding up very good after a year of usage. Have lost power several times and they kept things going for a long time. Recharged with no issue

  2. Rated 5 out of 5

    J. BridgesTop Contributor: Fountain Pens –

    Used to replace the four cells in a APC SUA2200 tower. Batteries dated only 2 months after manufacture, so I expect a long life. Shipping was very quick, arrived just a few days after my order, a 48lb box delivered by Fedex. All the posts lined up with the hardware from the APC RBC55 battery packs. I used double sided carpet tape to bind the cells together, and put on the original APC plastic terminal covers. Took me about 35 minutes start to finish, well worth the savings.

  3. Rated 5 out of 5

    J. Bridges –

    Used to replace the four cells in a APC SUA2200 tower.Batteries dated only 2 months after manufacture, so I expect a long life.Shipping was very quick, arrived just a few days after my order, a 48lb box delivered by Fedex.All the posts lined up with the hardware from the APC RBC55 battery packs. I used double sided carpet tape to bind the cells together, and put on the original APC plastic terminal covers. Took me about 35 minutes start to finish, well worth the savings.

  4. Rated 4 out of 5

    Roger Bachand –

    Exactly what was needed thanks.

  5. Rated 5 out of 5

    D. Richardson –

    Fit right into my APC Back-UPS 2200 with no problem.

  6. Rated 5 out of 5

    D. Richardson –

    Fit right into my APC Back-UPS 2200 with no problem.

Only logged in customers who have purchased this product may leave a review.

Excellent
Mighty Max Battery
Based on 4682 reviews
See all reviews
Emjhaye Juan
ML22-12 Gel type and ML22-12 Non Gel type Batteries came in good condition, purchased from Amazon 6/23/26 and arrived the next day packaged really good.
Hal Model
Very well packaged and.arrived as promised
Ryan Scott
Works great!!
David V Garcia
Love the Boost!!! I got newer batteries for my grandchildren and painted this black for my boys
Dennis Moy
It was delivered fast. Good product.
Frank Scarano
Was an excellent fit for my fios wall box. Inexpensive too! Was dealing with a dead battery for years with beeping every few minutes. This fixed it right up and now will keep internet when the power goes out.
Brenda Killips
Shipped as it should have been. Received in good condition.
Thyckcutie 74
This saved my life... Well not my life but... well the battery on my new predator 3500 generator was dead!! I got it on a super duper sale but I didn't open the box for 6 months, when I did I discovered a bad battery 😟. I called them and they wanted double the price I paid for Amazon to deliver it the SAME DAY!! They didn't even carry the battery in their store 🤬. I put it in and just like that, I can run my mobile Italian ice business again! 😆 Thank you mighty max and Amazon for getting me together!!
Debora Wesley
Great battery at a great price. Work really well.
Louis Wing
This might look like a mess of wires, but it's really the backbone of my home's network and more. Everything important to our home security and connectivity relies on steady power that I have on a battery backup.

I just purchased a replacement battery for my UPS and it's a Mighty Max Battery that is working behind the scenes here. This was almost half of the cost of the OEM battery, and it was a perfect fit for the unit.

Related products