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Sealed black rectangular battery block with two terminals on top

BatteryJack inc.

BatteryJack inc. PowerStar RBC5 UPS Replacement Battery Kit 12V 9.0AH

SKU CH-TZH3-D3Q9V

Complete UPS replacement kit with 12V 9.0Ah AGM batteries that exceed original 7.5Ah capacity for longer runtime

  • Advanced AGM technology boosts capacity to 9.0 Ah from 7.5 Ah
  • 12 V sealed design prevents electrolyte leakage in any position
  • Maintenance-free AGM construction eliminates watering and spillage risk
  • 100 % OEM-compatible replacement fits existing UPS units directly
  • Glass-mat separators absorb electrolyte for steady, long-life performance

Direct UPS replacement kit

The PowerStar RBC5 kit delivers a 12 V 9.0 Ah AGM battery set designed as a 100 % OEM replacement for compatible APC UPS units. It suits IT staff and small-business owners who need to restore runtime without rewiring or firmware changes.

Sealed AGM construction

Absorbed Glass Mat technology keeps the electrolyte immobilised, so the pack operates in any orientation and meets non-spillable transport rules. Maintenance-free terminals accept both T1 and T2 faston tabs, allowing a straight swap into existing battery trays.

Capacity increase over legacy cells

The 9.0 Ah rating exceeds the 7.5 Ah cells originally fitted in many units, extending backup time on the same footprint. Buyers whose UPS requires a higher amp-hour rating or a different voltage should verify specifications before ordering.

Highlights

  • Advanced AGM technology boosts capacity to 9.0 Ah from 7.5 Ah
  • 12 V sealed design prevents electrolyte leakage in any position
  • Maintenance-free AGM construction eliminates watering and spillage risk
  • 100 % OEM-compatible replacement fits existing UPS units directly
  • Glass-mat separators absorb electrolyte for steady, long-life performance

Specifications

No published specifications for this item yet.

Questions about this item

Does the 12 V AGM pack use T1/T2 terminals that match my UPS?

Yes, the kit ships with T1/T2 terminals designed as a direct 100 % OEM replacement for RBC5 units.

Will the 5.94 × 2.56 × 3.66 inch case fit inside my APC Smart-UPS chassis?

The dimensions match the original RBC5 footprint, so the pack slides into the same battery compartment without modification.

Do I need to wire the two 9.0 Ah cells in series myself, or are they pre-linked?

They arrive pre-wired in series; the common mistake is forgetting to reconnect the UPS internal harness before closing the door.

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