The CyberPower BP144VL2U01 rack/tower convertible Extended Battery Module (EBM) extends battery runtimes during power outages and is designed for CyberPower UPS systems OL5KRTHD and OL6KRTHD.

The BP144VL2U01 takes 2U of rack space and can be installed in a rack or tower configuration to match the UPS form factor. Battery equalization technology improves battery life, and toolless front panel removal makes battery replacement easier. This unit comes with a three-year warranty.

Features:

• Extended Battery Module (EBM)
  Extends runtime by adding up to 10 EBMs.
• Battery Equalization Technology
  Battery Equalization is an advanced charging process that maintains the
  voltages of the batteries at the same level to increase battery life.
• Fast Charge Technology
  Allows UPS batteries to return to full capacity more rapidly by
  utilizing a built-in charger. Restores charge from 0-90% within four
  hours regardless of the number of EBMs.
• Smart Battery Management
  Improves and extends the functional life of a UPS battery and reduces
  excessive heat during work cycles by using a three-cycle charging
  process.
• Hot-Swappable Batteries
  Keeps equipment running by eliminating downtime during UPS power
  maintenance.
• Plug-and-Play DC Connectors
  Allow for daisy-chaining additional EBMs to a UPS system.
• Replaceable DC Fuses
  Are located behind an easy-access panel.
• Resettable AC Circuit Breaker
  Resets the UPS swiftly in case of an overload.
• Rack/Tower Configuration
  Allows for horizontal rack or vertical tower installation.
• Three-Year Warranty
  Gives you peace of mind knowing we will repair or replace a defective
  UPS system (including batteries) within three years of the purchase
  date. See warranty for details.