Join Date: Apr 2008
Location: Rolling Meadows, IL, USA
Re: Possible My Battery Is Dead?
The BMW gel battery lasted over 3 years on the LT but after I left the key in the parking light position for a day or two, my wife got nervous about long trips on it so I invested in the PC680 dry cell, which I have been quite happy with. If you take the leads off, thereby removing all parasitic drain from the computer, alarm system, clock, motronic and other "always on" circuits, then the PC680 battery is good for about 2 years. It does not lose quite as much with sub-zero temps.
Speaking of temperature, we all know that high temps are the ultimate foe of batteries. Part of the reason they have you disconnect and drain is that storage may take place in very climate exposed circumstances, which in summer could mean well into the low 100's for days unless it was inside an air conditioned space.
Still, with a relatively new battery, it may very well charge up with proper conditioning and the forum has given you very sound advice like usual.
07 K1200LT Biarritz Blau
80 Yamaha XS850 Black - retired in 06