Hello... I’m about to ship my 2013 GS 450h overseas to my parents vacation house. Nobody is there about 4-5 months out of the year. We usually keep a battery tender on all the vehicles while they are gone. However this is the first hybrid they will have there. I’m wondering if trickle charging the main battery somehow keeps the hybrid battery charged... or is there even any way to trickle charge the hybrid battery? Or should I not worry about the hybrid battery leaving it not driven for 4-5 months? Any suggestions?