HelloCustomer My name isXXXXX to Just Answer.
There is a tool to use to change the battery on the navman, it is very straight forward.
I have given you a link to an e-bay offer, which gives you the replacement battery,
but also the tool to swap them over.
You will see it is easy to follow.
I hope this is helpful for you.
Ok, I am sorry sir, you will need a torx screwdriver to undo the screws.
( there will be 4 )
also, you will have a connection to connect the power to the satnav. ( white )
I have given you a link to a set of torx,
I wouldnt want to guess the exact size, but it is 5 or 6 mill, for satnavs.
I hope this is useful for you.
Hello I am sorry please disregard the last link please and use this link.
but again i have the tool my question is how do i open the navman s80 to replace the battery ( i have the tool and battery so instructions or diagram as to how to open unit is what im after
Ok, I cannot explain sir without it being in front of me, I am sorry,
usually the screws are un done from the back, unclip the terminal, switch it over.
If this procedure does not work, then, I have no other explanation for you.
I will have to opt out and let another expert, try explain how.