Battery charger not working

[BarneyBaxter]

Hi, I think my battery charger isn’t working (Bailey Bordeaux series 6)
With the EHU connected it shows 12 v
when I turn the lights on it drops to 11.5v, it does the same with EHU disconnected.
All the power sockets are working in the caravan
How can I test the
without a multimeter

.

 

[Jcloughie]

When you switch the mains on/off there should be a distinct movement of the needle.

John

 

[BarneyBaxter]

When you switch the mains on/off there should be a distinct movement of the needle.

John

No the needle doesn’t move, stays on the same at 12 -1/4 V

 

[Woodentop]

Have you checked the fuses - particularly the Van Batt +?

Otherwise take a trip wherever you are to Screwfix and get item 95426 whence £22.95 will get you a small but beautifully made digital multimeter, a mains polarity/earth tester (looks like 13A plug,) and a non-contact mains tester.
I have been advocating on here for years that every caravanner should have one (or the equivalent.)

 

[ProfJohnL]

Well based on the symptoms you describe, the charging system does seem to be faulty, but whether its just a loose plug, a blown fuse, or the chargers circuit that faulty I cant say without hands on contact. There have been some well documented cases where the charger circuit has failed, and whilst new replacement unit may not be available, there are a coupel of companies that will repair your unit to probably better than new.

Somewhere on the case of the charger should be a manufacturers name and model number. Contact Apuljack Electronics or A and R electronics both these companies may be able to help you.

 

[Firkle]

Have you checked that the mains connector hasn't fallen out of the power supply as they have a tendancy to do so. Its a normal 3 pin type the same as on many computers.