Crazyworld, I have a RCS with 52v battery too. I have a problem that I was wondering if you could help me with... I somehow accidentally deleted my 52v 85% charge profile that came programmed into my Satiator when I got the bike from Juiced. This happened when I was simply trying to edit it from 85% to 80%. The entire profile just pffft! Not sure what I did and I'm definitely no battery guru, so I was wondering if you could look at that particular profile while in edit mode and give me all the parameters to do an 80% charge. I totally understand if you aren't interested in doing this... no problem. Juiced says they're "stumped" when I asked them if they could give me the parameters and Grin has no customer service and has referred me to a web page where I'm supposed to figure it out.... not! Any help from you (or anyone else) is greatly appreciated. Guitartec