I am running a Sola UPS 520RM 1050. Last night it just turned itself off and it wont come back on. When I press the power button it appears to be turning on and within 5 seconds it turns itself off again. However during these 5 seconds it doesnt output any power.
The UPS is about 5 years old, so I am thinking it could be the battery, however I dont know much about UPS's so I was wondering if someone could tell me what the possible causes could be.