Starter battery charging voltages on EHU (1 Viewer)

Feb 14, 2021
3,709
8,006
Milton Keynes, UK
Funster No
79,219
MH
Burstner Lyseo 727G
Exp
19 month year 18000 miles UK, Ireland, France, Spain, Germany, Italy. Campsites and off Grid.
Fiat Ducato 2021 with Schaudt EBL119

Not a problem but more an education lesson question. My van is parked up on my drive. The solar charges the leisure only. So i have been keeping an eye on the starter battery.

On EHU it seems only to deliver around 13.2 Volts (read by multimeter - the Burstner guage says 12.7 but it always reads lower than the multi meter)

Now, I have also read that an AGM battery should charge at a minimum of 13.5. I am aware that the EBL prioritises the Leisure's but am just concerned that the starter battery could not be being kept in the best condition?

As soon as I start the engine the charge voltage jumps to a more respectable 14 volt plus.

Thoughts?
 

Lenny HB

LIFE MEMBER
Oct 18, 2007
54,013
152,241
On the coast in West Sussex
Funster No
658
MH
Hymer B678 DL
Exp
Since 2008 & many years tugging
The EBL should be giving the starter battery a 2 amp trickle charge at 13.7v.
The AGM Leisure battery the voltage should rise to 14.7v then hold at that for 4 hours before dropping to a float charge at 13.7v.
If the AGM battery doesn't get a proper charge it won't last long but often don't last long anyway.
If you turn the charger off and draw a bit of current out of the batteries then when you turn it back on you should be able to see what is happening.
Most likely is that your batteries are fully charged and are sitting at the float voltage.
 
Upvote 0

Join us or log in to post a reply.

To join in you must be a member of MotorhomeFun

Join MotorhomeFun

Join us, it quick and easy!

Log in

Already a member? Log in here.

Latest journal entries

Funsters who are viewing this thread

Back
Top