Reply To: QU-32 and UPS

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Dick Rees

The best and most effective units will be the “online” or “inline” units which have the batteries in the circuit at all times. That way there is no lag…zero, none… if and when the house power goes down. An added advantage is that you’re always running through the inverter, so you’re getting as close to pure sine wave power with low THD at all times.

Best deals are to buy used Tripplite units retired from server farm backup, buy new batteries and you’re good to go at a fraction of the cost of new. The “OfficeMax” cheapo UPS units like the APC are not worth having.

Go for the good stuff or take your chances. You have to decide if it’s worth the “savings” to leave your gear exosed.