Hello friends, has anyone ever dealt with this topic? Our Mazda 626, year 12/99, has a webasto stand heating and almost every winter, after several uses of the stand heating, the starter battery gives up the spirit. Now I try to find a solution in a second battery, which should only be there for the heating and is also charged by the alternator. Has anyone ever implemented this? If not, I will probably be here in the greater Wuppertal area at Boschdienst I’d like to thank you in advance. MfG., GJHammes