Help! Battery problem.

Bearing in mind where you are and the fact that it may be a while before you can possibly get professional help I would have a go at this:

Why not disconnect your solar panel once it has charged your leisure battery, and see what voltage you have in the morning. This would check Tezza's theory, by taking the solar panel out of the equation.


If the solar panel was not found to be the problem, reconnect it and then disconnect all other powered 12v items, and then re-connect them one at a time, each time overnight, until the rogue 12v drain is found (if there is one).
This would answer your query about a voltage drain, at least then you have more of an idea of where your problem lies.
 
I think that’s virtually what he is doing Beemer to stop drain back. Pulling fuse when the sun goes down and replacing in the morning 👍
 
Beemer said:
Bearing in mind where you are and the fact that it may be a while before you can possibly get professional help I would have a go at this:

Why not disconnect your solar panel once it has charged your leisure battery, and see what voltage you have in the morning. This would check Tezza's theory, by taking the solar panel out of the equation.


If the solar panel was not found to be the problem, reconnect it and then disconnect all other powered 12v items, and then re-connect them one at a time, each time overnight, until the rogue 12v drain is found (if there is one).
This would answer your query about a voltage drain, at least then you have more of an idea of where your problem lies.
Click to expand...

Nabsim said:
I think that’s virtually what he is doing Beemer to stop drain back. Pulling fuse when the sun goes down and replacing in the morning 👍
Click to expand...

Yes, that’s what I’ve been doing when not on EHU. Pulled fuse last night when it got dark and BM1 monitor showed battery at 85%. Replaced fuse this morning, monitor still showing battery at 85%.

Pat
 
Nabsim said:
Just spotted these and thought of you :)

If it is diode on your panel this will save you having to take it off and fix if I understand correctly, wait for someone with more electrical knowledge but looks to me you can fit these in the wiring and job done.
MC4 Blocking Diode 20A - Stop panel from draining battery
Click to expand...

You’ve posted at an opportune time. I tried to remove the solar panel yesterday which has 8 screws fixing it to a couple of brackets which are bonded to the roof with a Sika product. Seven screws came straight out but the last one wouldn’t budge. Electric/manual screwdriver, mains electric drill, WD40 and finally “Aldi special” butchered screw head removal bits. The screw is still there.
Unless anyone has a better idea I’m going for the blocking diode you’ve mentioned.
Yesterday I emailed Photonics Universe to ask if the PWM controller I bought from them has reverse current protection as it is not mentioned as a function in the instruction manual.

I intend to replace this controller with either this:
12V solar panels charging kits for caravans, motorhomes, boats, yachts, marine

Or this:
10A 12v/24v MPPT charge Controller - New Model Tracer1215BN

Both of these have reverse current protection so would I then need a blocking diode?

Pat
 
You need an answer off someone with a bit more knowledge than me Pat, I would say one or the other would do but see what others say 👍
 
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