I purchased the Odyssey OBC-12A charger which is Odyssey's 12 amp smart charger with various modes used during battery charging and have found it very capable of keeping the battery from discharging while doing extended button pushing or software upgrades to the Dynon SkyView. (It is also nice to have when performing the required bi-annual transponder pitot/static checks when the SkyView needs to be powered on for an extended period of time while those tests are being performed).
After connecting the charger to the Odyssey PC680 battery I wait for a few minutes while the charger completes the self test and switches to the charge mode before powering up the Dynon Skyview.
After the button pushing session, software updates or transponder tests are completed, I do one of two things. I'll leave the charger on to complete running through its various phases and remove it the next day if it has been a long while since the airplane has flown due to winter weather or I'll leave the charger on for a little while after completing the button pushing and do a pre-flight, remove the charger and go fly.
The Odyssey OBC-12A charger does a great job of keeping the battery from discharging while button pushing and looking through the SkyView's menu settings or during software updates.
My two Lincolns
RV-12 Wings, Empennage, Fuselage, Finishing, Avionics and Powerplant kits all completed
Dues paid until September 2019