I think it automatically kicks it down to 10% speed on backup mode. Never had a power outage lasting more than a 3-4 hours where I am and hope never will but it does the job well because it turns on automatically. Good to know when you are not home or if your generator requires manual kick start.
So far about 3-4 power outages since I had the battery backup. Hasn't failed me yet. Do keep the battery fresh though.
Unless you want to keep throwing a new battery at it every year, it's also important you have the proper smart charger that knows when to stop cooking the battery.. I prefer the battery tender jr. $23, good investment.
I picked one up at lunch. Does it come charged? Should I plug it into an outlet for now? I need if for tomorrow morning for a few hours. I will order the battery tender unless someone says I can get it local?
Unless you want to keep throwing a new battery at it every year, it's also important you have the proper smart charger that knows when to stop cooking the battery.. I prefer the battery tender jr. $23, good investment.