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Two rectangular sealed lead-acid batteries side by side

BatteryJack inc.

BatteryJack inc. 2pc 6V 12Ah SLA Battery WB6120F2 UPS Replacement Battery

SKU CH-47ZP-AC0Q5

Two 6 V 12 Ah sealed lead-acid batteries with AGM technology, maintenance-free and rated for four to seven years

  • Two-pack convenience for dual-battery UPS units
  • 12 Ah capacity supports extended runtime
  • AGM glass-mat design prevents electrolyte leakage
  • Over 90 % gas recombination enables maintenance-free use
  • 100 % OEM fit for UB6120, D5778 and PS6100

Two-Pack 6 V 12 Ah SLA Set

This two-pack supplies a pair of 6 V 12 Ah sealed lead-acid batteries built with absorptive glass-mat technology. They serve as direct replacements for UPS units such as the UB6120, D5778 and PS6100 models. The maintenance-free design requires no water top-ups during service life.

AGM Sealed Construction Limits

The absorptive glass-mat separator immobilises the electrolyte, so the batteries are classified as non-spillable and meet International Air Transport Association requirements for transport. Gas recombination exceeds 90 per cent during normal float operation, reducing venting. They operate safely in any orientation without leakage from terminals or case.

Capacity and Service Life Headroom

Each unit delivers 12 ampere-hours at 6 volts, providing the rated runtime for compatible UPS cabinets. Expected floating life spans four to seven years depending on temperature and discharge depth. The pack covers standard backup windows but will not support extended runtime beyond the UPS design specification.

Highlights

  • Two-pack convenience for dual-battery UPS units
  • 12 Ah capacity supports extended runtime
  • AGM glass-mat design prevents electrolyte leakage
  • Over 90 % gas recombination enables maintenance-free use
  • 100 % OEM fit for UB6120, D5778 and PS6100

Specifications

No published specifications for this item yet.

Questions about this item

Should I pick the 2-pack of 12 Ah units or look for a different capacity?

The pack contains two 6 V 12 Ah batteries wired in series to give a 12 V 12 Ah block, matching the original UB6120, D5778 and PS6100 specifications.

What runtime can I expect from the 12 Ah rating in my UPS?

At the standard 20-hour rate the cells deliver 12 Ah; actual backup time depends on the load your UPS draws — higher loads reduce usable capacity.

What terminal standard does the WB6120F2 use and what current can it handle?

The F2 suffix denotes the standard ¼-inch faston tab used on UB6120, D5778 and PS6100 units, rated for the currents those UPS models require.

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