12V 9AH Replacement Battery for CyberPower RB1290 UPS - 2 Pack
12V 9AH Replacement Battery for CyberPower RB1290 UPS - 2 Pack
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Mighty Max Battery

12V 9AH Replacement Battery for CyberPower RB1290 UPS - 2 Pack

12V 9AH Replacement Battery for CyberPower RB1290 UPS - 2 Pack12V 9AH Replacement Battery for CyberPower RB1290 UPS 2 Pack12V 9AH Replacement Battery for CyberPower RB1290 UPS

Key item features

  • ML9-12 SLA is a 12V 9AH Sealed Lead Acid (SLA) rechargeable maintenance free battery, Pack of 2 - UL Certified
  • Dimensions: 5.94 inches x 2.56 inches x 4.02 inches. Terminal: F2. Listing is for the Battery only. No wire harness or mounting accessories included.
  • SLA / AGM spill proof battery has a characteristic of high discharge rate, wide operating temperatures and long service life.
  • Rechargeable battery that can be mounted in any position, resists shocks and vibration. Long lasting high performance in high and low temperatures
  • Backed by a 30 day refund policy and full 1 year warranty
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4.9 out of 5 stars
stars28 ratings26 reviews
How item rating is calculated
  1. 5 stars93% (26)
  2. 4 stars7% (2)
  3. 3 stars0% (0)
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Showing 1-3 of 26 reviews

Sep 14, 2025
Rafael
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Multipack quantity: 1
Sold and shipped byeComelectronics
5 out of 5 stars review

Verified Purchase

Battery has the power it claims.

Bought this to replace worn battery of a CyberPower CP10000PFCLCD Power Surge and Failure protector UPS, that lasted 3.5 years on the previous battery and about 4 with the one before that (the original factory battery). This is my third battery replacement and battery tests for this one look perfect. It has been over 6 months and the device reports the battery at 100%. It has responded well to three power failures already. As you can see I have squeezed, 7 years of use from my UPS and going strong for another round of 3 to 4 years, by replacing the worn out batteries.

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Feb 18, 2026
Shirley
Item details
Multipack quantity: 1
Sold and shipped byeComelectronics
5 out of 5 stars review

Verified Purchase

Great price and Good product

These 2 batteries I purchased at almost 1/2 price from other stores.. Work great and hopefully will last a year or so..

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Apr 5, 2026
WalmartCustomers
Item details
Multipack quantity: 1
Sold and shipped byeComelectronics
5 out of 5 stars review

Verified Purchase

Great value for the price. Saved lots of $$$ and works great!

Incentivized Review
Helpful?2ONZQZHCC28T982126571