BatteryJack inc.
BatteryJack inc. 12 Volt 5.1 Amp Hour 21 Watt Sealed Lead Acid Battery recessed terminals
12 V sealed lead-acid battery with recessed terminals delivers 5.1 Ah capacity and 21 W output for UPS or backup use
- 12 V 5.1 Ah capacity powers devices longer
- AGM technology enables 90 % gas recombination for steady service
- Sealed non-spillable design allows safe operation in any position
- Maintenance-free construction requires no water checks or electrolyte service
- 100 % OEM replacement fits original equipment without modification
Purpose & Fit
This 12 Volt sealed lead-acid battery delivers 5.1 amp hours and 21 watts for UPS units, alarm panels and portable tools. Recessed terminals allow a flush connection in tight compartments. The AGM construction keeps the electrolyte absorbed so the battery can operate in any orientation without spills.
Compatibility Check
Verify that your device specifies a 12 Volt 5.1 Ah SLA pack with recessed terminals before ordering. Measure the available space and confirm the terminal layout matches the existing connector. The battery is classified as non-spillable for air transport, but always follow the equipment manufacturer's installation instructions.
Thermals, Noise & Power
Sealed AGM design produces no audible noise and requires no ventilation fans. Gas recombination handles over 90 percent of generated gas during normal float charging. Maintenance-free operation means no water top-ups or specific-gravity checks for the expected 4 to 7 year service life.
Highlights
- 12 V 5.1 Ah capacity powers devices longer
- AGM technology enables 90 % gas recombination for steady service
- Sealed non-spillable design allows safe operation in any position
- Maintenance-free construction requires no water checks or electrolyte service
- 100 % OEM replacement fits original equipment without modification
Specifications
No published specifications for this item yet.
Questions about this item
Does the battery come with mounting hardware or cables, or must they be purchased separately?
The unit is supplied as the sealed lead-acid battery only; mounting brackets, terminal connectors and cables are not included and must be sourced separately.
How do I decide between the 5.1 Ah rating and the 21 W rating when choosing a replacement?
Use the 5.1 Ah figure for runtime calculations in cyclic or backup applications; the 21 W value reflects the power the cell can deliver for short high-current demands.
What does the 100 % OEM replacement claim mean once the battery is installed in my UPS?
It indicates the battery matches the original manufacturer’s voltage, capacity and terminal layout so it fits and performs to the same specification without modification.
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