well everything statistically happens with car usually,when it's less needed ( Murphe's Law - never fails)..I will see in a couple of days how it's behaiving..plus I'm planning to feed with battery tender now( bought it yesterday)..
today car is running ok..

I know ..I know this question will refresh most of automobille addictive persons..but ..here it is ..
How better is Made by chines..- lead accumulator with bmw logo, sold by stiller at BMW fac...(320.00 usd) compair then just sold in the bayarea autoshops (96.00usd) -- us made with practically same parrametrs..and full possible warranty for up to 5 years ?

thanks for even smallest point of view ! John

Are you describing the Battery Tender sold by BMW?

If so, it's "no better" other than the cig lighter plug in
and that BMW Roundel...

Edit: Ah, I think you are talking about a new batt.
I'd pass on the Stlr version: no "better" than aftermkt,
and an utter rip.

If you get a new batt., I'd hook it up to your handy dandy
new Batt Tender for a day or two, if you can manage it.
Or, install it and hook up Batt Tender to the lugs when not
driving it, to get it fully charged, slowly.
GL,mD

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..