The Marathon series of affordable UPS (Uninterruptible Power Supply) can provide very long backup time. It is an ideal backup power for computers and office equipment in areas with frequent power outage problems.

There are two configurations to choose from; one has built-in maintenance-free rechargeable batteries, the other comes with a set of cables that can be connected to an ordinary 12V car battery.

The Marathon series is modular with each module rated for 500VA. Expansion units can be added to increase the backup time or to increase the power rating to a maximum of 2000VA. 

 
Each unit has a built-in high-power automatic charger to recharge the battery when normal power supply resumes. A voltage regulator is included to allow the Marathon series to operate in regions where the voltage fluctuates widely.
 
A PC interface port is available to allow for automatic shutdown of a network when used in conjunction with the optional software.
 
Long backup time for extended operation
Modular design allows for expansion
Choice of built-in battery or external battery operation
Built-in voltage regulator and lightning surge suppressor
Built-in noise filter