NoDo you know if that one switches itself back on after a power outage?
Richard

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I think this one may do the job and comes on after a power cut. .
I think that is correct, I don't normally read the manual but this time I did as I was the question was raised and I still had the book as it was brand new.
But this Lidl one did not last the night and now is dead and will go back asap.
I've stuck the Aldi one on and as I knew it does not charge up straight away until you select the type. I noticed it recognised the the battery voltage as soon as the power is connect so the Lidl and Aldi one must be the same.
Never RTFM'd the Aldi one, just used it.
Not sure if I will exchange or refund and wait for another Lidl one, Aldi is a smaller unit but display is pretty on Lidl - and it works..
Sorry this is slightly off thread, but if i got one of these and had it permanently attached to domestic battery so that whenever i attach shore power, it charges (never for more than a day), can i still use the boats 12v system? At the moment when i charge the battery i disconnect it from the boats circuits and hemce cant use cabin lights or vhf etc alongside.