Nice price, but very, very short life span
I have ordered replacement roomba batteries from these guys twice and both times the batteries barely lasted more than 6 months;. The first time I figured it was a fluke, the second time I contacted them and was told their warranty is only for 6 months (hmmm, coincidence?). ALthough the price is a bit cheaper than buying direct from iRobot, iRobot has a 1 year warranty and every battery I've bought from them has lasted well beyond that period. All in all, I ended up spending more money buying from these guys since it died so quickly.