Now we're in the season of frosts and gritting the roads the SR/S isn't going to get any use. So the owner's manual (page 6.38) describes the process for putting the bike into "Long Term Storage", where long term means over a month. The main thing is to charge the battery to about 60%, and then leave the bike to do the rest. If the bike hasn't been used in 30 days it will enter Long Term Storage mode, although the manual isn't particularly clear about what this mode actually does.
I tend to charge the bike the night before a ride, so I needed to first set the charge target, and then charge up to 60%.
With that done I've thrown a dust sheet over the bike, and we'll keep an eye on the weather to see if we even reach the 30 day threshold.
The owner's manual states that if the bike is in Long Term Storage mode, you need to switch the bike on, then off again, and connect up a charger for 24 hours in order to rebalance the battery's cells.