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Rectangular 6V 12AH sealed lead acid battery in black plastic case

BatteryJack inc.

BatteryJack inc. 6V 12AH SLA Battery RBC52 UB6120

SKU CH-MSGY-1ESQK

A 6 V 12 Ah sealed lead-acid battery using AGM technology for UPS and Power Wheels replacement

  • AGM technology delivers reliable valve-regulated power
  • 12 Ah capacity supports extended backup runtime
  • Direct OEM replacement fits Tripplite RBC52 and UB6120 units
  • Maintenance-free sealed design eliminates fluid checks
  • 100 % compatibility with modified Power Wheels applications

UPS Replacement Battery 6V 12AH

The BatteryJack inc. 6V 12AH SLA unit is a sealed lead-acid replacement built for UPS systems and compatible modified Power Wheels applications. It uses advanced AGM technology to deliver maintenance-free operation in a rugged valve-regulated design. This battery serves administrators and hobbyists who need a direct drop-in power source.

Replaces RBC52 and UB6120 models

It functions as a 100% OEM replacement for the RBC52 and UB6120 part numbers, matching the original form factor and electrical specifications. The upgrade is worth it when an existing pack no longer holds charge or shows reduced runtime under load. Swapping restores the original backup duration without hardware changes.

Sustained load performance

Under continuous discharge the AGM chemistry maintains stable voltage output for the duration of the rated capacity. The sealed construction prevents electrolyte loss during extended use, supporting the expected service life of four to seven years. A three-year warranty covers UPS and backup deployments, while other devices carry a two-year term.

How it compares

Measured against everything we stock in UPS Replacement Batteries, at today’s prices. Recalculated every night.

Price $21.99
Cheaper than about 69% of the 3,915 comparable items (median $39.99).

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Specifications

No published specifications for this item yet.

Questions about this item

Will the RBC52's terminal layout fit my UPS battery tray?

The RBC52 is a direct OEM replacement for Tripplite UB6120 models, so its terminal positions and case dimensions match the original battery tray exactly.

Do I need to add acid or charge the UB6120 before first use?

The battery arrives sealed and maintenance-free with AGM technology; it is factory-charged and ready to install without adding electrolyte or an initial charge cycle.

How often should I replace the 6 V 12 Ah SLA in a Power Wheels application?

Expected service life is four to seven years; plan replacement when run-time drops noticeably or after the warranty period for your device type ends.

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