Alternator over charging

[burgerman]

 Hi all, My alternater is charging @ nearly 20 volts on tickover  :shock:, And not much less with everything turned on, Is it time for a" new" alternater? or is there a bit of it that can be replaced??  Im guessing tha battery will be goosed also due to over charging ??

Anyone got one lying around   :-k
 I can source a new battery at a good price ;)

[beast5680]

if its charging at that rate its time to replace :'( battery may be ok if your lucky

[Range Rover Blues]

Lucky is the word, it's probably boiled dry with that much overcharging.

Good news is the coils in your alternator are fine ;) but the regualtor has gone up the spout and/or there is a short to the field coil, so it needs a rebuild/reconditioning.

Easier to get an exchange unit with a guarantee.