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Discussion Starter · #1 ·
had a RNS510 fitted in summer and the car has recently suffered a dead battery.

to be fair its after I leave it for over 3/4 days as I've access to another car. so if I leave it for a few days its fine but anything over 4 then its flat.

I trickle charged it to 100% a month ago and it was fine until I recently left it for a week. then dead. jumps off straight away with my jump pack.

the car is a December 2007 and had an aftermarket unit in when I bought it in 2015 so I assumed the can bus would be ok.

question is if the canbus is the issue how long would it normally be before the battery went dead?

some posts ive read say u can hear the fan but I can't hear anything once I switch the ignition off.

and if it is to fault what's the cost these days? ta
 

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Discussion Starter · #5 ·
that's great ta. I'll check my records as can't remember buying a new battery but I do remember playing about in the boot and removing 12 Allen key bolts were the battery sits! just can't remember why!
 
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