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Two black rectangular 12V lead acid battery cartridges labelled 48

PowerWarehouse

PowerWarehouse 12V Lead Acid Battery Cartridge #48 2 Pack for APC SMT750TW

SKU CH-5TWN-PZRT3

Two 12 V lead-acid cartridges replace APC SMT750TW UPS batteries

  • Compatible withFits: APC SMT750TW
  • 12 V lead-acid chemistry delivers reliable backup power
  • Two-cartridge pack replaces RBC48 in a single order
  • 100 % compatible with APC SMT750TW units
  • One-year replacement warranty covers each battery

PowerWarehouse 12V cartridge for APC SMT750TW

This two-pack supplies 12V lead-acid cartridges built to match the original equipment in the APC SMT750TW UPS. Installers receive a direct-fit replacement that restores backup power without adapter cables or firmware changes. The 100% compatibility guarantee means the batteries slide into the existing chassis and connect to the factory wiring harness immediately.

Sustained load behaviour

Under continuous discharge the lead-acid chemistry delivers steady voltage until the cells reach their safe cut-off point. The 12V 486 model maintains consistent current for the full rated runtime instead of sagging after an initial burst. Heat builds gradually inside the sealed case, so the UPS fan profile stays unchanged during extended outages.abuilders who need a higher-capacity pack or a different voltage platform cannot use this cartridge.

How it compares

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

Price $113.99
Pricier than about 78% of the 3,915 comparable items (median $39.99).

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Specifications

Product
Brand namePowerWarehouse
Model name2XRBC48SLA486
Compatibility
Compatible withFits: APC SMT750TW

Questions about this item

Does the 12V lead-acid cartridge generate noticeable heat or noise during continuous UPS operation?

The sealed lead-acid design runs silently with no moving parts; normal warmth occurs under load but stays within typical UPS enclosure limits.

Besides the APC SMT750TW unit itself, what must I already have to install the two #48 cartridges?

You only need the original battery tray and the existing connector cables inside the SMT750TW; no extra tools or hardware are required.

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