I had a quick look at the Gems manual from Gomog.
Nothing specific, but it was late last night so may have missed something!
As for disconnecting the car battery....shouldn't be a problem, had to do that late last year and no issues. Mine is a 2002 car. I use a ctec conditioner to keep battery topped up due to low level drain by immobiliser etc.
Last edited by sospan; 31/03/15 10:32 AM.
