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Sealed 6V 12AH AGM battery block for APC BK650M UPS

BatteryJack inc.

BatteryJack inc. 6V 12AH UPS Replacement Battery for APC BK650M PCNET

SKU CH-4FSH-B6WS9

6V 12AH AGM battery replaces the APC BK650M PCNET unit with maintenance-free sealed construction

  • Maintenance-free operation with sealed AGM construction
  • 100% compatible replacement for APC BK650M PCNET units
  • Expected service life of 4-7 years under normal use
  • Over 90% gas recombination for safe, spill-proof performance
  • 6V 12AH capacity restores original UPS runtime

6V 12AH UPS Replacement Battery

This 6V 12AH replacement battery is designed for the APC BK650M PCNET uninterruptible power supply. It uses advanced AGM technology and sealed construction to prevent electrolyte leakage in any position. The maintenance-free design requires no watering or specific gravity checks during its service life. It serves as a 100% OEM-compatible swap for depleted original cells.

Capacity and expected service life

The 12 ampere-hour rating provides the energy reserve the UPS needs to bridge short outages and allow safe shutdown of connected equipment. Gas recombination technology handles over 90% of gas generated during normal float operation, contributing to the expected 4-7 year battery life. Capacity will gradually decline with age, temperature and discharge depth, eventually requiring replacement to maintain runtime.

Fit and installation considerations

Sealed, non-spillable construction meets IATA requirements and allows installation in any orientation without leakage risk. The battery arrives ready to install with no provision for maintenance access. Buyers who need extended runtime beyond the standard capacity or who require hot-swappable modules for continuous uptime should verify their UPS supports those configurations before purchasing.

How it compares

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

Price $20.99
Cheaper than about 70% 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 this 6 V 12 Ah battery fit the APC BK650M PCNET UPS I already own?

Yes, it is a 100 % OEM replacement designed for that exact model, using AGM technology and sealed construction so it installs in the same compartment without modification.

How can I confirm the replacement is working after I install it?

The UPS should power on normally, show a healthy battery indicator and pass its self-test; the AGM cells recombine over 90 % of gas generated, so no venting or leakage should appear during the first charge cycle.

Does the package include cables or mounting hardware, or must I buy them separately?

Only the sealed 6 V 12 Ah battery is supplied; reuse the existing leads and brackets from the old unit because no extra connectors or hardware are included.

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