The Quart battery is confirmed working with hardware versions up to 5314 and Software Gemini version 5050 and prior.
Currently, if you have a hardware version past 5314 OR a software version 5059+, the Pint will give you Error 23. We don't recommend you install the Quart in unsupported Pints.
If you do have a supported Pint, you can buy a Quart here.