Rated 4.53 out of 5 based on 15 customer ratings
(15 customer reviews)

$24.99

12V 9Ah Compatible Battery for APC BACK-UPS NS1250, NS 1250

SKU: ML9-12106 Category:
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$24.99
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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

15 reviews for 12V 9Ah Compatible Battery for APC BACK-UPS NS1250, NS 1250

  1. Rated 4 out of 5

    Albert B. St Md –

    Was right size worked and less expensive

  2. Rated 5 out of 5

    Meowskers –

    I used this battery to replace a dead one in an APC UPS-550 that I found at Goodwill. It works perfectly. The connectors are the .250 that you need (I saw people complaining on other batteries that had .125 connectors). So far no issues. I will update my review if anything unexpected occurs.

  3. Rated 5 out of 5

    Doug Stone –

    I used this battery to replace a dead one in an APC UPS-550 that I found at Goodwill. It works perfectly. The connectors are the .250 that you need (I saw people complaining on other batteries that had .125 connectors). So far no issues. I will update my review if anything unexpected occurs.

  4. Rated 5 out of 5

    P. Patel –

    Ran a test and worked fine in my APC Back-UPS 1250.

  5. Rated 5 out of 5

    Robert Dockham –

    It fits my APC backup and seems to be working fine

  6. Rated 5 out of 5

    D. Lyman –

    Works great. no problems

  7. Rated 4 out of 5

    Bill in San Jose –

    1 Month so far, all good. Fit my AT&T ONT box perfect, spade lugs are the correct size.

  8. Rated 5 out of 5

    jomebrew –

    It puts out without input. Johnny 5 would struggle without input but not the Mighty Max.

  9. Rated 4 out of 5

    TXShotgun36 –

    Worked as expected

  10. Rated 4 out of 5

    TXShotgun36 –

    Worked as expected

  11. Rated 5 out of 5

    mb#1 –

    My APC Back Up is now back up and running!!!

  12. Rated 5 out of 5

    mb1 –

    My APC Back Up is now back up and running!!!

  13. Rated 4 out of 5

    Mason –

    Silly me. I thought when I bought his 2 would come because that is what is needed. It was only one. So if you get this, make sure if you need 2 get the pair. They seem to work fine.

  14. Rated 3 out of 5

    Thomas Finch –

    Works as expected

  15. Rated 5 out of 5

    Ron Sink –

    Works great. It seems to function just as the original battery did.

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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!