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Sealed 12V 9.0Ah SLA brick 5.94 by 2.56 by 3.66 inches T1 T2 terminals

BatteryJack inc.

BatteryJack inc. 9AH UPS Replacement Battery for APC Back-UPS 300

SKU CH-Y0K3-2E22E

A 12 V, 9.0 Ah sealed AGM battery that fits APC Back-UPS 300 units and replaces 7.5 Ah cells

  • Higher 9.0 Ah capacity extends runtime versus 7.5 Ah originals
  • Advanced AGM technology delivers sealed, maintenance-free operation
  • 100 % OEM-compatible fit for APC Back-UPS 300 units
  • Three-year warranty backs long-term reliability
  • Compact 5.94 x 2.56 x 3.66 in case fits existing battery bay

Replacement Battery for APC Back-UPS 300

This 12V sealed lead-acid battery is a direct replacement for the APC Back-UPS 300 unit. It uses Advanced AGM technology to deliver 9.0AH capacity in a maintenance-free design. The battery fits the original compartment without modification and is classified as non-spillable for safe operation in any position.

Increased Capacity Over Original Cells

The 9.0AH rating exceeds the 7.5AH or 7Ah cells originally supplied with the UPS. This higher capacity extends available runtime during power outages without changing the physical footprint. AGM construction absorbs the electrolyte in glass-fibre separators to prevent leakage and support steady service over the expected 4-7 year life.

Verify Terminal Type and Dimensions Before Ordering

Confirm that your existing unit uses T1/T2 terminals to match this battery. Check the compartment space against the listed measurements of 5.94 length, 2.56 width and 3.66 height to ensure proper fit. The battery is designed for UPS backup devices and carries a three-year warranty on those applications.

Highlights

  • Higher 9.0 Ah capacity extends runtime versus 7.5 Ah originals
  • Advanced AGM technology delivers sealed, maintenance-free operation
  • 100 % OEM-compatible fit for APC Back-UPS 300 units
  • Three-year warranty backs long-term reliability
  • Compact 5.94 x 2.56 x 3.66 in case fits existing battery bay

Specifications

No published specifications for this item yet.

Questions about this item

How often will the 12V 9.0AH AGM battery need replacement under normal use?

Expected battery life is 4-7 years; the sealed AGM construction is maintenance-free, so no watering or periodic service is required during that period.

What capacity limit appears first when the UPS runs continuously on battery?

The 9.0AH rating determines total runtime; once that ampere-hour reserve is depleted the UPS will shut down, regardless of load level.

Does the sealed AGM design produce noticeable heat or noise during all-day float charging?

Sealed AGM batteries operate silently and generate minimal heat during float charge; the non-spillable design allows safe operation in any orientation without ventilation concerns.

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