Douglas did sell their auto battery division to Eastern Penn - with one exception. According to all the press releases, they retained their supply contract with BMW as part of the deal. But yes, I believe Eastern Penn now supplies Batteries Plus with the OEM replacement they carry, and yes, I paid about $110 (last summer) installed.540 M-Sport said:The factory OEM batteries seem to work well, and last quite long...they used to be Douglas brand, but Douglas was sold to East Penn and are now sold under the East Penn or Deka brand names http://www.eastpenn-deka.com/index.html
They can be sourced through most Batteries Plus stores, at a significant discount from list price. http://www.batteriesplus.com/default.aspx
Last time I checked, the factory battery was selling through Batteries Plus for around $110.
I replaced the batt in my old 97 528 with Interstate for < $90.MyCoupe said:I have been reading that Interstate makes the batteries for BMW now. I do not know if this is true. What would everyone suggest as a replacement for battery for 2000 528i?