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Rectangular sealed lead-acid battery cartridge with connectors and cables

NShi

NShi RBC2-UPC laptop battery for APC UPS 300 350 400 420 500

SKU CH-A1DD-5HQWR

Replacement battery cartridge fits APC UPS models 300, 350, 400, 420 and 500, pre-charged and hot-swappable for immediate use

  • Battery typeLithium Polymer
  • Ready to install with no assembly required
  • Pre-charged for immediate use after unpacking
  • Maintenance-free sealed lead-acid design
  • Compatible with APC UPS models 300 350 400 420 500
  • 18 month warranty on UPC-branded products

Compatible APC UPS Models

This replacement battery pack fits APC UPS models BK300, BK350, BK400, BK500, BK500M, BK500MC, BK500MUS, SC420, BE500R and BP280. It is a maintenance-free sealed lead-acid unit with suspended electrolyte that arrives pre-charged and ready for immediate use. The cartridge includes all required connectors, cables, fuses and metal enclosures so no assembly is needed.

Installation Benefits

The pack is plug-and-play and hot-swappable, allowing installation without powering down the UPS or connected equipment. Supplied connectors and cables match the original cartridge, eliminating the need for extra wiring or tools. An 18-month warranty covers the UPC-branded product.

Pre-Purchase Checks

Verify that your UPS model number appears in the supported list before ordering. Confirm the existing cartridge can be removed while the unit remains powered if you plan a hot-swap installation. Ensure the battery compartment has no damage that would prevent the new pack from seating correctly.

How it compares

Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.

Price $43.99
Pricier than about 76% of the 27,790 comparable items (median $30.99).

Specifications

Power
Battery typeLithium Polymer

Questions about this item

How often does the sealed lead-acid battery pack need replacement under normal UPS duty?

The maintenance-free sealed lead-acid design with suspended electrolyte is rated for multi-year service; plan on swapping the cartridge when runtime drops below your critical load requirement.

What runtime limit appears first when the UPS runs a continuous load near 500 VA?

Runtime is limited by the pack's capacity and the connected load; at higher VA draws the battery will deplete faster, so size the UPS model to your actual wattage.

Does the battery generate noticeable heat or noise during all-day float charging?

The sealed lead-acid chemistry runs cool and silent during float charge; no fan or moving parts are present in the cartridge itself.

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