First time away with NO Electric hook up!

Alanandmaggie

I am away at the New Wine Christian Conference in the van for 6 nights in early August. Newark and Notts showground?? No electric hook up - or facilities at the site to charge. My Abbey Maverick (2002) has a 75AH battery in good condition. How long do people
think I'd get "out of it" for simple late evening  lighting and water pump (2 'brief' showers per day) ????