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UPDATE: After a few months sitting in the corner being charged, I tried it out today. Apparently there's at least one bad cell; a 600w load exhausts the batteries in about 45 seconds. So I revise my rating to ``piece of junk,'' niche or no niche. It needs a much better quality control on the batteries.
ORIGINAL Post:Pros : about three times the run times of a comparable capacity UPS, based on battery capacity (3 x 17AH, vs typical 2 x 9AH in a 1500VA UPS). Maybe nice to have around to switch to when a regular UPS runs down in a long power outage. I got mine for $180, which would be a good deal in the UPS market. The current $380 would be too high for me.
Cons : a lot of cons. It's hyped as if it's going to help out in the gas generator alternative market, but has nowhere near the capacity you'd need in terms or runtimes. It could run a sump pump for an hour maybe (one cycle of my 1/2hp sump pump runs it down to 80% of charge, so 5 cycles would run it out completely), which isn't going to help much. For all this stuff, like refrigerator and so forth, you just need a gas generator.
The transfer time (80ms) is too slow for a computer when the power goes out. A UPS is ten times faster. No power conditioning.
Really heavy. A woman is not going to like dealing with it. Handles are convenient for the weight though. A Honda EU2000i 2000w gas generator weighs the same.
There's no powered-off charge-the-battery-anyway mode, and it consumes 10w when plugged in. Can only be powered off when not plugged in, so you'd have to establish a routine to keep the battery charged if it's not in regular use.
So perhaps its niche is as a backup UPS when the power has been off too long for the regular UPS. Plug the computer into this, then. When the power comes back, charge it back up and put it back in the closet.
It's a nice product, just one with no obvious use.
Get a gas generator for the sump pump and the refrigerator.
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The DuracellPowerSource 1800 is the ideal emergency backup power solution for the home or office. During a power outage, it automatically supplies emergency backup power for a small office and household appliances like a refrigerator, TV, lights or sump pump. In an emergency, the Duracell PowerSource 1800 switches seamlessly to its built-in battery and provides 1800 Watts of household power, supplying up to 12 hours of uninterrupted backup power for a small office, or up to 4 hours of run time for essential home appliances and electronics. Application: Emergency backup for home or office, Watts: 1,800, Power Supply: Combines sealed, 60Ah AGM battery with 1800 Watt inverter to convert 12V battery power to AC current, Includes: LED display
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