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Two sealed black rectangular 12V 9.0AH AGM batteries with T1/T2 terminals

BatteryJack inc.

BatteryJack inc. 12V 9.0AH AGM UPS Replacement Battery 2PK

SKU CH-RX1F-15R9E

Two 12 V 9.0 Ah AGM batteries replace 7 Ah or 7.5 Ah units in APC UPS models

  • Extended runtime with 9.0 Ah capacity upgrade
  • Fits APC Back-UPS 350, 400, 500 and Pro 420 models
  • AGM design delivers 4-7 year expected service life
  • Sealed construction requires zero maintenance
  • Dual T1/T2 terminals simplify installation

Two-pack UPS replacement batteries

This two-pack supplies 12V 9.0AH AGM batteries built as direct replacements for a wide range of APC Back-UPS and Smart-UPS models. The sealed design fits units such as the Back-UPS 300, 350, 400 and 500 series as well as Pro 280, 350, 420 and 500 variants. Buyers needing higher voltage strings or larger form-factor cells will need a different solution.

Thermals noise and power draw

AGM construction keeps the cells sealed and maintenance-free, so no gas venting or electrolyte checks are required during normal float service. Internal resistance remains low enough to support typical UPS self-test cycles without excessive heating. The batteries are rated for a 4-7 year service life under standard temperature conditions.

Bundled accessories and software

The pack includes two identical batteries with T1/T2 terminal tabs, allowing a straightforward swap without extra cables or adapters. A 2-year warranty covers non-UPS applications such as Razor e200, e300 and e325 scooters, while UPS and backup devices receive a 3-year warranty. No management software or mounting hardware is supplied.

Highlights

  • Extended runtime with 9.0 Ah capacity upgrade
  • Fits APC Back-UPS 350, 400, 500 and Pro 420 models
  • AGM design delivers 4-7 year expected service life
  • Sealed construction requires zero maintenance
  • Dual T1/T2 terminals simplify installation

Specifications

No published specifications for this item yet.

Questions about this item

How do I install these 12V 9.0AH AGM batteries in my APC Back-UPS 350, and what terminal step is often missed?

Match the T1/T2 terminals to the unit's connectors, secure the battery straps, and ensure the polarity tabs click into place; the step most often missed is fully seating the second battery's connector before closing the cover.

What maintenance or replacement will these sealed AGM batteries need over their 4-7 year expected life?

They are maintenance-free with no water topping required; plan to replace both units together once runtime drops below 80% of original capacity, typically after 4-7 years.

What limit appears first during a prolonged power outage with a 500 VA load on these 9.0AH batteries?

The 9.0AH capacity at 12V defines the runtime ceiling; sustained discharge will hit the voltage cut-off before thermal limits become a factor.

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