I also installed a Speedcell 8-Cell Superbike battery that weighs a mere 1.5lbs and comes with quick disconnect fittings.

I actually had a 4-Cell version in my 1000RR that only weighed .84lb and never gave me a single problem in 4 years, but I have been lead to understand that the electronics for the Traction Control on the ZX-10R are sensitive to voltage output and figured the larger 8-Cell would be a better choice.

The US market is flooded with super lightweight Lithium based batteries currently I have had a lot of failures with many of the other brands. If you want the details on those failures and what has worked and what hasn't then you can read about those here