As one of its daily deals, Best Buy via eBay offers the APC Back-UPS NS 600VA 8-Outlet UPS Battery Backup, model no. BN600G, for $44.99 with free shipping. That's the lowest total price we could find by $21, although three months ago we saw it for $5 less. It features up to 13 minutes of backup power at half load, four outlets with battery backup, four surge-protected outlets, and low battery and overload alarms. Deal ends today.