UPS Ideas ?
This could be for an RV where there have been posts about TV receivers etc getting knocked out by slow switching 120v power inputs. In this case it is in the stick house. I have jury-rigged somethin...
Forum Discussion
A few years back, I did some research for a friend on residential/light commercial UPS for a friend. The bottom line is "you get what you pay for".
•Buy a Pure Sine Wave UPS. The cost difference between MSW and PSW should not be that much (10%-25%) with modern electronics ! Anuone charging more either is making big profits or is making a very old design. (10 years in electronics is "very old".)
• Replacement batteries are almost as much as a whole new UPS !!
• ALL UPS are designed to run for a LIMITED AMOUNT OF TIME, probably under 1 hour, but possibly as short as 15 minutes. Buyer beware. Read the specifications. (Short time mean smaller battery, lower cost, and less money invested in high heat protection.)
• "Switch over time" is an issue. The best commercial UPS are "online". That is, 100% of the time, the load is running off of the inverter. Battery charging is independent of the inverter. $$$ !!
If you don't mind the extra wiring (build a box to hide it), buy a pair of AGM golf cart batteries and a 500w-1000W PSW inverter. Buy a separate battery charger. You are in business and will have a very long "ride through" time.
•Buy a Pure Sine Wave UPS. The cost difference between MSW and PSW should not be that much (10%-25%) with modern electronics ! Anuone charging more either is making big profits or is making a very old design. (10 years in electronics is "very old".)
• Replacement batteries are almost as much as a whole new UPS !!
• ALL UPS are designed to run for a LIMITED AMOUNT OF TIME, probably under 1 hour, but possibly as short as 15 minutes. Buyer beware. Read the specifications. (Short time mean smaller battery, lower cost, and less money invested in high heat protection.)
• "Switch over time" is an issue. The best commercial UPS are "online". That is, 100% of the time, the load is running off of the inverter. Battery charging is independent of the inverter. $$$ !!
If you don't mind the extra wiring (build a box to hide it), buy a pair of AGM golf cart batteries and a 500w-1000W PSW inverter. Buy a separate battery charger. You are in business and will have a very long "ride through" time.
