We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Rectangular sealed 6V 12Ah AGM battery with terminal posts

BatteryJack inc.

BatteryJack inc. UB6120 SLA AGM 6V 12Ah UPS replacement battery

SKU CH-HNRW-D148K

A sealed 6 V 12 Ah AGM battery with 90 % gas recombination for maintenance-free UPS backup

  • Maintenance-free operation with sealed AGM construction
  • Safe handling from non-spillable electrolyte design
  • Long service life rated 4-7 years floating
  • Exact OEM fit for UB6120 6V 12Ah units
  • Over 90% gas recombination reduces internal pressure

6V 12Ah UPS Replacement Battery

The BatteryJack UB6120 is a sealed lead-acid AGM battery built to replace original UPS cells in server and network power-protection units. It delivers 6 volts and 12 ampere-hours of capacity for standby backup applications.

AGM Sealed Construction

Absorptive Glass Mat technology absorbs the electrolyte into fine glass-fibre separators, eliminating free liquid and allowing safe operation in any orientation. The sealed, non-spillable design meets IATA transport requirements and recombines over 90 percent of internally generated gas, so no watering or specific-gravity checks are ever needed.

12Ah Capacity Decides Fit

The 12Ah rating determines whether this cell matches the runtime and charger profile of the UPS it replaces; verify the original battery specifies the same voltage and ampere-hour value before installing.

Highlights

  • Maintenance-free operation with sealed AGM construction
  • Safe handling from non-spillable electrolyte design
  • Long service life rated 4-7 years floating
  • Exact OEM fit for UB6120 6V 12Ah units
  • Over 90% gas recombination reduces internal pressure

Specifications

No published specifications for this item yet.

Questions about this item

How long before the UB6120 battery needs replacement?

The expected battery life is 4-7 years under normal floating service conditions.

What limits runtime during a prolonged outage?

The 12 Ah capacity at 6 V determines how long the UPS can supply power before the battery is depleted.

Does the AGM battery produce heat or noise during continuous operation?

The sealed AGM design is maintenance-free and non-spillable, with over 90% gas recombination, so it runs silently without adding heat or fumes.

New to this? Which coin should you pay with — what to check, what it costs to pay, and what is never asked for.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.