I have Antigravity ATZ-10. I ran it in my Tuono, and now on the BMW.

 

Weird that their website does not list the 2020 models to be compatible. I was assuming the form factor would be not fitting or something like that.

 

Shorai is great, has most CCAs around. Best warranty as well.

 

The K67 M model has a light lithium battery as is.

 

He said he does not have the M model.

 

The Antigravity has four terminals so it fits opposing terminals configurations. It is just a tad slimmer than the OEM lithium battery. Mine went bad so while I am waiting for BMW to ship a replacement I run the Antigravity spare I had.

 

@BMW_388 There must be a vendor making a k67 specific one ? or did they all give up as the M model is so prevalent ?

Just an idea : Who makes the M battery ? I assume BMW sells it for 500$ when you can directly get it for about 250$ ?

 

I researched this already.

It takes a bit of searching the relationship, but it is with VoltABox. voltabox.ag - Voltabox at a Glance: Key Facts

you can buy one here

BMW S 1000 RR 2019-2020 (S1000RR 19 K67) Battery (8563911) | Boonstra Parts

 

earthx battery. cell balancing built in.

It seems like there is little support for 2021+

 

earthx battery. cell balancing built in.

Cell balancing is a product of a BMS device. Battery Management System is how a LiFePO4 survives many cycles of charge and discharge.

Most of these batteries are based on 3.2V cells in the 80AH range. So we stack 4 @ 3.2VDC in series making a 12.8VDC @ 80Ah up to 200Ah. The BMS handles the charge cycle and the alternator is special in the S1000RR that is factory equipped with the M Battery package.

 

After chatting with the good folks at Anti Gravity - they recommended a at7b-bs-rs for a track only bike. Just over a pound light AT7B-BS-RS Lithium Motorcycle Battery