Any ride which is long enough for battery save mode to be initiated does not get saved properly into history. The ride shows the time and duration, but it cannot be opened in the head unit. These rides also cannot be synched to the app in my mobile phone, they start synching but at about 3/4 synched (which is where it seems battery save mode initiated) it jumps back to unsynched. As the battery is getting weak this is happening on more and more rides, and especially now riding in sub zero the battery goes down quite quickly. Anyone else experience this?