One question I would like o ask @fwippers regarding off peak hours. Am I right thinking you have from 9.30pm to 1.30am to charge cheaply and are you planning on charging regulary to keep the battery topped up within these hours. The reason I ask is doesn’t it take about 9hrs to charge from 10-80%, or am I miss reading something. Obviously it will depend on how many miles you do, for how often it needs charging.
I am planning to keep the battery at around 80%, so I will charge maybe every 3 or 4 days for 4 hours at cheap rates. If I am planning a long trip I will probably charge for 2 consecutive nights. Most of our journeys are between 10 and 5o miles, and we will probably cover around 600 miles a month, so I am confident I can find a charging regime that suits. I think its 9hrs 15 mins from 0-100%, but could be wrong.