discount on Cellmeter-7 Digital Battery Capacity Checker for $6.7

This is an awesome Cellmeter-7 Digital Battery Capacity Checker deal. I use this device all the time and thought I'd buy one for the office as well. They can be used for LiPo LiFe Li-ion NiMH Nicd batteries. Now it's on a great price so I'm thinking of all the places I need them to be on hand. They're at $6.79 and the delivery costs are included. It displays: Battery cell voltages, total voltages, lowest cell voltage, highest cell voltage, voltage gap between highest cell voltage and lowest cell voltage, remaining battery capacity (%), so it's a very complex device. Great deal http://www.newfrog.com/p/cellmeter-7-digital-battery-capacity-checker-controller-lipo-life-li-ion-59017.html