4
Re: Batteries Sun May 22, 2016 3:16 pm
Two Wheels Better

Moderator

Number of posts : 4695
So much has been written (and so many questions asked) about batteries, tyres, oil, etc in the forum. The best advice I can give is to use the previously discussed, collective wisdom of the members. Try going to the the forum's main page and in the search engine type in 'battery' and watch what pops up. There are so many choices, sizes and varied opinions. The BMW OEM battery part numbers are 61 21 2 346 800 (Exide Gel BMW small version) and 61 21 1 459 650 (lead/acid BMW large version). From there you can find cross references to the various aftermarket numbers, like PC680, for example. Two batteries will fit the battery tray. Pick one, but on an 1985 model they both fit.
Here's a link to some good info as well:
http://www.largiader.com/articles/whichbat.html
__________________________________________________
1970 R60/5, '77 R75/7-R100, '85 K100, '87 K75C, '87 K100RS, '93 K11-K12 Big Block, '93 K1100RS, '95 R100-Mystic, '96 K1100RS, '98 K1200RS, '00 K1200RS, '02 K1200RS, '03 K1200GT, '04 R1150R, '04 R1150RT, '05 K1200S, '06 K1200R, '07 K1200R, '09 K1300GT, 2013 R1200RT-P & 2022 S1000XR
"We take our bearings, daily, from others. To be sane is, to a great extent, to be sociable."
~John Updike.