Thanks to all for the help they are giving me, the problem is that with the red optima battery with the charger connected and voltage greater than 13.0 volts if the SRT6 remains stationary for 3/4 days (winter) 5/6 (summer) has equally to electronic problem at startup time, or 50 ha are very few and it takes at least 80 ha, or the battery is faulty, or I read in the specifications of the optima battery (battery r start power) is perhaps suitable for ignitions when 100% charge but installed on SRT6 that remains stationary for a week, unable to take advantage of the few amps 50 ah even if connected to a charger, the srt 6 as the original battery mounts a 75 700 ha acc