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 lead-acid battery cartridge, grey plastic casing, connector terminals visible

American Battery

American Battery Replacement Battery Cartridge #18

SKU CH-BFRR-85TXH

A 6 V sealed lead-acid cartridge with cables and connectors fits APC PS250, PS450 and SU5005 UPS units

  • Lower upfront cost with 20 to 70 percent savings over OEM batteries
  • Extended protection through a full two-year warranty
  • Hot-swappable design lets you replace the cartridge without powering down the UPS
  • Maintenance-free sealed lead-acid chemistry provides three to five years of service life
  • Compatible with APC PS250, PS450, SU500, SC250RM1U and SC450RM1U models

Replacement Battery Cartridge #18

This replacement battery cartridge fits select APC UPS models including PS250, PS450, SU5005 and SC450RM1U. It uses a maintenance-free sealed lead acid design and is hot-swappable so you can install it without powering down the connected equipment. The cartridge delivers a 6 V DC output and a 10000 mAh capacity for reliable backup power. It is intended for IT managers and small-business owners who need a cost-effective UPS battery refresh.

Sustained Load Behaviour

The sealed lead acid chemistry provides steady voltage delivery over the 3 to 5 year design life rather than a short high-current burst. Maintenance-free construction means no electrolyte checks are required during that period. The two-year warranty covers the full service interval, reducing the frequency of replacement purchases. Over the life of the UPS this can lower total battery expenditure compared with OEM units.

Installation and Common Issues

The package includes cables, connectors, an installation guide and a recycling guide to simplify the swap. Hot-swap capability allows installation while the UPS remains online, but the unit must physically accept the cartridge dimensions of 4.1 height, 1.3 width and 11.9 depth. The 5.70 lb weight requires secure mounting in rack models. Installers who skip the polarity-marked connectors or omit the recycling step are the most frequent source of problems.

Highlights

  • Lower upfront cost with 20 to 70 percent savings over OEM batteries
  • Extended protection through a full two-year warranty
  • Hot-swappable design lets you replace the cartridge without powering down the UPS
  • Maintenance-free sealed lead-acid chemistry provides three to five years of service life
  • Compatible with APC PS250, PS450, SU500, SC250RM1U and SC450RM1U models

Specifications

No published specifications for this item yet.

Questions about this item

Does the 10000 mAh cartridge run hot or draw extra power when the UPS is on battery all day?

The sealed lead-acid cartridge is maintenance-free and designed for continuous UPS operation without active cooling or added power draw.

My APC PS450 uses a hot-swap tray — do I need any extra cables or tools to install cartridge #18?

The package includes the cartridge, cables, connectors and an installation guide; no extra tools are required for the hot-swap tray.

Will this 6 V cartridge fit the older SU500 I still run alongside the PS250?

Compatibility is listed for PS250, PS450 and SU500 models; the SU500 is supported so the cartridge will work in both units.

Also in this aisle

People compared these

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