I didn't want to be restricted by mains access.I have 2 x 100ah batteries with 4 x 20w solar panels.Without recharging I can run my 3 scopes for 4 to 5 days (nights). If I hook up the solar panels & recharge during each day I have indefinate power supply. When I'm away I run 3 scopes with 4 heater systems An 80L 12v fridge 2 x lappys. All from the batteries with no power issues.
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