Hello, I have a Gen2 17 Volt. During the warmer months I can get 2 daily commutes in with a full charge. Is it better for the battery pack to charge each night when there is still about 50% of the charge remaining, or do it every other night after depleting the battery? In winter I deplete about 70% of a full charge. Here is some background to share. I use a Clipper Creek LCS-30 240 charger which takes about 4 hours from empty to full. We have solar and net meter in part because our house is 100% electric and have only had 2 utility bills (this winter because of extreme cold) since March of 2013 when our array went online. I have about 17K miles on my Volt acquired Christmas eve 2016. According to the OnStar app 87.5% of those miles were electric, so they were free. It shows that only 2090 miles were gas powered. Life time fuel costs about $150. The gas miles would be my vacation drives.