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Rectangular black external battery pack for UPS

APC

APC BR24BPG 1500VA External Battery Pack UPS

SKU CH-3A6B-QD138 MPN BR24BPG

Extends runtime of a 1500VA UPS with four 9Ah lead-acid batteries, adding roughly 11 minutes at half load or 3 minutes at full load

  • VA Rating1500 VA
  • Watts865 W
  • Battery TypeLead Acid Battery
  • Battery Run TimeAt full load (865W): The runtime can be extended from around
  • Extends runtime to 11 minutes at half load
  • Triples standard backup when paired with 1500VA UPS
  • Maintenance-free sealed lead-acid batteries last 4 to 6 years
  • Four 9Ah cells add 24Ah total capacity
  • Automatic recharge through UPS internal charger

Extended Runtime for Back-UPS Pro 1500VA

This external battery pack connects directly to the rear panel of compatible APC Back-UPS Pro 1500VA units. It adds four 9Ah sealed lead-acid modules to the two already inside the UPS, tripling the available backup capacity for connected equipment.

Maintenance-Free Operation

The sealed lead-acid batteries require no user servicing and recharge automatically through the UPS internal charger. Expected service life spans 4 to 6 years under normal conditions, providing reliable extended runtime without added noise or thermal load.

Sustained Load Runtime

At a full load of 865 W the combined battery set delivers approximately 24 minutes of runtime, up from roughly 3 minutes on the internal batteries alone. At half load of 432.5 W the runtime extends to around 11 minutes, supporting longer outages for critical devices.

Highlights

  • Extends runtime to 11 minutes at half load
  • Triples standard backup when paired with 1500VA UPS
  • Maintenance-free sealed lead-acid batteries last 4 to 6 years
  • Four 9Ah cells add 24Ah total capacity
  • Automatic recharge through UPS internal charger

Specifications

VA Rating1500 VA
Watts865 W
Battery TypeLead Acid Battery
Battery Run TimeAt full load (865W): The runtime can be extended from around 3 minutes
At half load (432.5W): The runtime can be extended from around 11 minutes
Shipping weight13.70 kg
Package size488 × 399 × 239 mm

Questions about this item

How do I connect the BR24BPG to my Back-UPS Pro 1500VA, and which step is often missed?

Plug the pack into the dedicated rear-panel battery connector on the UPS; the step often missed is securing the connector latch so the pack stays firmly attached during movement.

When will the sealed lead-acid batteries inside the BR24BPG need replacement?

The manufacturer rates the expected battery life at 4 to 6 years; plan replacement when runtime noticeably drops below the 11-minute half-load or 3-minute full-load extensions.

What limits continuous operation first when the BR24BPG is powering a full 865 W load?

At 865 W the extended runtime is about 3 minutes, so battery capacity is the first limit reached under sustained full load.

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