Optimate charger

None of that with mine, I just plug it in to the parked up, switched off bike and turn it on at the wall. Done that for the last 18 months. No issues at all if it’s switched off and on again, it just restarts the cycle.
The only minor issue I get is that it starts up the NavV1, which then turns itself off again but it appears power goes to the mount briefly.
Same here. I'm using an old Optimate 4. Seems to be fine, although I also have the Nav thing going on. I don't have a lithium battery.
 
dealer told me only the early 1300GS got lithium - whilst its an option when ordering they come with a normal battery these days

his view was as soon as it gets cold lithium batteries give up - OK on an M1000RR but no point on a GS
 
Looks like the new BMW charger is a collaboration with CTEK, always thought they were good chargers.View attachment 448323
that's nice the std CTEK lithium charger

CTEK Lithium XS battery charger - LiFePO​

is ONLY lithium not either or !


the Lithium ones they do - but the CT5 is for moped batteries - what use is that
 
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I have a boxed mint one of these for sale with extra lead.
It’s about 5 months old.
 


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