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BMW R18 battery

  • <i class="fa--xf fal fa-check "><svg xmlns="http://www.w3.org/2000/svg" role="img" aria-hidden="true" ><use href="/data/local/icons/light.svg?v=1758297946#check"></use></svg></i> Discussion starter Discussion starter beemerbanjara
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MilwDave said:
The issue is not the number of cycles or wearing out. On all three lithium batteries that failed, it was the BOS component that failed.
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You said you had the Shorai 4 years ago and it was a BMS failure? Shorai didn’t have an internal BMS until after 2022, so I think you got screwed.
 
DonC said:
You said you had the Shorai 4 years ago and it was a BMS failure? Shorai didn’t have an internal BMS until after 2022, so I think you got screwed.
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I never got an explanation from Shorai on what failed. But it exhibited the exact same characteristics as the failed Noco lithiums.
 
beemerbanjara said:
Hi everyone,
I was getting the battery with ? logo and the bike would not start. Once I used the jump started, it turned on like butter- A day later it did not charge. So, yesterday I took the battery out ( side note: it was only 3 screws and the battery comes out quite easily compared to 114 M8 harley) and I charged it.

Should I do any recommended test to see if the battery is still hanging in there? or just buy a new one? FYI- I also ordered an entry level millimeter from amazon-


Bike
2021 R18

Any advise is much appreciated-
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Any good affordable AGM battery works. I would go cheap; I am a bike battery killer :-) I am shocked my original battery still works on my bike. 4 years is good for a bike battery where I live. Even on a tender they tend to go quick.
 
beemerbanjara said:
Hi everyone,
I was getting the battery with ? logo and the bike would not start. Once I used the jump started, it turned on like butter- A day later it did not charge. So, yesterday I took the battery out ( side note: it was only 3 screws and the battery comes out quite easily compared to 114 M8 harley) and I charged it.

Should I do any recommended test to see if the battery is still hanging in there? or just buy a new one? FYI- I also ordered an entry level millimeter from amazon-


Bike
2021 R18

Any advise is much appreciated-
Click to expand...
Need to do a load test. Sounds like you may have a loose connection. Check your chassis gound.
 
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