FWB
N/A
How's the silence on the big boat while you recharge the battery? Sorry I know I'm being a bit glass half full and I'm sure that eventually it'll be the way to go.
I charge the Torqeedo battery via an inverter usually during periods of motoring or shore power during visits to the harbour.
The real advantage of the Torqeedo for me is the fact that it splits into three. It's effortless to lower it into the tender.
It has a constant display of the available charge so it doesn't suddenly die on you.