I have used Turbo Start 16V batteries in a few of my cars through the years with good results. Go Lithium pricing is very attractive, here is a link their website http://www.golithium.com/catalog/THE_BATTERY-1-1.html and as you may be aware there is a long running thread on YB on 16V Lithium batteries https://www.yellowbullet.com/forum/showthread.php?t=1508666&highlight=volt+battery.

Mike Gray