hi motordavid! No I listened to your advice and bought tender from the site you posted .(5 star advice) .I do not have it yet ..guess from florida to Ca 3-5 days before I'll have it. And it is not BMW
Anyway I did checked the battery i have at this time and it's shows ok.I did bought cheapy analizer yesterday.It's show a few indications on running engine and non running engine.For now my accumulator is holding charge normally and also alternator works just fine as I understood.
Also read 10 first blogs about accumulator and altertator relationship . It is so clear when you reading it.
Thank you for an idea to add extra charge to new one I memorised it .
In the future plans training regimes will be arranged.
thank you to all..