Purchased the Storm pro Maxx with two batteries and 13HP pump Feb 2011. First use was Saturday-Sunday during Hurricane Irene hitting the East Coast. Pump was going on every 10 seconds with power on. Sunday at 9:00AM the power went out. Battery backup took over instantly. Pump was going on every minute and eventually once every 4 minutes. The inverter powered the pumped just as good as when electricity was on. Power came back on at 2:30AM on Monday. Battery backup worked for 17.5 hours. Recharged the battery in 43 hours. Saved me a big basement mess. Neighbors had 6 to 10 inches of water in their basements due to sump pumps loosing electricity. Would Highly recommend this pump and battery backup system.
Purchased the Storm pro Maxx with two batteries and 13HP pump Feb 2011. First use was Saturday-Sunday during Hurricane Irene hitting the East Coast. Pump was going on every 10 seconds with power on. Sunday at 9:00AM the power went out. Battery backup took over instantly. Pump was going on every minute and eventually once every 4 minutes. The inverter powered the pumped just as good as when electricity was on. Power came back on at 2:30AM on Monday. Battery backup worked for 17.5 hours....
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 w/ 2 Batteries&rv[url]=https://www.sumppumpsdirect.com/Reviews/StormPro-STORMPROMAXX-KITrv6667.html&rv[summary]=Read StormPro STORMPROMAXX-KIT sump pump reviews from Sump Pumps Direct and other sources. Compare letter grade ratings and competitor prices too.&rv[images][0]=https://www.sumppumpsdirect.com/products-image/280/product_6667_600.jpg)
