BestBuy.com has a CyberPower – 425VA SL-Series Battery Back-Up System for $29.99 plus Shipping. Search for item “6201585“.
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- 6 total outlets, all with surge protection and 3 with battery backup n
- 425VA rating with 240 watts of power n
- 585-joule surge energy rating n
- Battery run times of 8 to 20 minutes, depending on PC and monitor size n
- 2-line phone/fax/modem communication protection ports n
- LED indicators for power on and wiring fault