battery charging at 18.9 volts....

[bruc1e118]

had a loose connection on my alternator, which i found after i lost all my electrics....i was not getting any lights before i found my alternator must have fried...
i have just changed my alternator to a spare i had... it is now charging at 18.9 volts....

the battery voltage is around 12.7 when the car is not running, i will double check on this figure tomorrow.

i have read that the regulator can play up in the alternator....- was just wondering if anyone else has anything they could mention etc

all help appreciated.

 

[MicKPM]

Deffo a voltage regulator fault - That's WAY too high chap don't run it with that as it'll blow fuses and possibly even electronics.

 

[bruc1e118]

cheers mick, should i look into a new alternator then? or is the regulator a easy fix...

 

[MicKPM]

There are some places that can replace this for you but if it were me, I'd just replace it with a genuine Renault refurbished item for around £150 (don't forget to replace the aux belt kit also).

 

[Chip-mk1]

As Mick says, dont drive it, the electronics are designed to be safe from 10-15V and have a little bit of headroom but you are really pushing your luck there if its gets any worse you will get a world of problems.

 

[bruc1e118]

cheers mick i have another clio coming in on tuesday so i will swop the alternator over and let you know how i get on.

 

[Djw John]

Having had 1 battery explode as a result of similar I can only echo the above!

 

[bruc1e118]

update- i have changed the alternator and all is good
thanks for the help

 

[Chip-mk1]

Cool stuff. Will just be the regulator damaged so will be an easy repair by a specialist if you want to keep the old one as a spare once fixed.

 

[jezvalva]

f**k me lol that's some power output......

Surprised your loom took it.