Manual Switch for single output MPPT to divert charge to starter battey. (1 Viewer)

[Diesel]

Hi All,

New to forum - currently have 2 x 100 Baird panels to fit to MH, cannot find an MPPT charge controller with dual output at a sensible price - am I missing something?

Has anyone fitted a switch to manually select between starter and leisure batteries? If so any suggestions on switch to use?

 

[Flamenca]

You could connect the output of the solar controller to the leisure batteries and also instal a 'battery master' to trickle charge the engine start battery. I think you will find that many Funsters have done this

 

[pappajohn]

Fit a battery master....no chance of forgetting to switch back to hab battery.
It senses your engine and leisure battery voltages and diverts solar or mains charger current to your engine battery when it needs it at a safe 1.1amp.

http://www.vanbitz.com/product/battery-master/

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[Diesel]

Ah looks interesting .....I knew it would be a good idea joining the forum for tech stuff - thank you both

 

[pappajohn]

Ah looks interesting .....I knew it would be a good idea joining the forum for tech stuff - thank you both

Only one more post though, then you become read only and cant contribute.

£15 a year gets you 365 days of advise, help and laughs.

 

[Techno]

This will share the charge but prioritise the leisure battery
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[Diesel]

Great - thanks Techno ... Do you have one?

best get my wallet out for subscription.....

 

[Techno]

Yes I use them often but although not a fan of Sterling I fitted this as it is quite robust.
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[Techno]

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[Techno]

Ah looks interesting .....I knew it would be a good idea joining the forum for tech stuff - thank you both

it is the best good choice, well done for coughing up

 

[Diesel]

Wow impressive techno .. and very tidy too I like it ....not sure what it all is but thinking I probably want it.. .....hhhmmm I think Mrs D might lose her washbag cupboard very soon....

 

[dave newell]

Assuming your motorhome is the Hymer in your avatar you would do well to use the Schaudt LRM 1218 MPPT reg which will work in conjunction with your Elektroblok and from there will charge both leisure and engine batteries.

D.

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[Techno]

Good observation Dave
What electrobloc does your van have @Diesel

 

[Diesel]

Hi Dave - yes Hymer in avatar with Electroblok ELB 105-3

 

[Techno]

Looks like the 105 is one that does NOT have to use a schaudt regulator but the mppt model is much better than the PWM
http://www.aandncaravanservices.co.uk/lr-1218.php

£139 plus P&P

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[Flamenca]

Yes I use them often but although not a fan of Sterling I fitted this as it is quite robust.
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Andy, did you take it apart to see what is inside before fitting? I would not be able to resist taking a driver those screws

Chris

 

[Techno]

Andy, did you take it apart to see what is inside before fitting? I would not be able to resist taking a driver those screws

Chris

It hasn't registered significantly in my memory so I have to assume it was a case of "nothing to see here"

 

[Diesel]

Is it essential I use a schaudt regulator for my Electroblok? I see it charges both leisure and starter ..

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[dave newell]

Not essential but recommended and it does simplify the installation and solve the dual battery charging requirement.

D.

 

[Diesel]

Thanks Dave

 

[Minxy]

Have a shuftie at this thread:

http://www.motorhomefun.co.uk/forum...our-new-to-us-hymerb654-advice-please.117301/

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[Chipster]

Fitted the LRM1218 MPPT controller and LT 320 panel to a Hymer. Doddle to fit and plugs straight into the Electro Bloc. Still got an unused LR1218 PWM if it's any use.

 

[Diesel]

Hi Christopher - probably looking to go MPPT route ....if for any reason I decide otherwise I will give you a shout

 

[Minxy]

Fitted the LRM1218 MPPT controller and LT 320 panel to a Hymer. Doddle to fit and plugs straight into the Electro Bloc. Still got an unused LR1218 PWM if it's any use.

Hi Chipster

Another funster @Ambilkate might want to purchase the LM1218 off you as he's putting a panel on his Hymer - see below thread:

http://www.motorhomefun.co.uk/forum...our-new-to-us-hymerb654-advice-please.117301/

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[Chipster]

Hi Chipster

Another funster @Ambilkate might want to purchase the LM1218 off you as he's putting a panel on his Hymer - see below thread:

http://www.motorhomefun.co.uk/forum...our-new-to-us-hymerb654-advice-please.117301/

Ok thanks.

 

[Scattycat]

Does it meed to be an MPPT charger?
I have an unused controller that I bought a couple of weeks ago but found it was my solar panel that was the problem and the new panel came with its dedicated one.
The make is a " moove" dual battery controller.
It cast me 59€ that's about £45
If you're interested you can have it for £25 including postage

 

[Diesel]

Hi Scattycat .... thank you for offer - I think at the moment I want to go MPPT

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[Diesel]

Hi Andy, @Techno100

Mind me asking why you have two split chargers installed - the sterling one and the cheaper one you linked?

Would you also explain the function of the fridge switch box and the diverter/selector on the left of the pic.

Cheers
Ross

 

[Techno]

The cheap one (CBE CSB2) sends 13.6 volts to my distribution unit to make it think the engine is running (D+) signal. That allows my fridge to switch to 12 volts.
The sterling sends up to 3 amps from battery bank 2 to battery bank 1 when there is enough solar.
The selector switch allows me to choose which battery bank feeds the habitation or can combine them

 

[Techno]

You can pick up the tale from this point
http://www.motorhomefun.co.uk/forum/threads/fridge-on-solar.84589/page-3#post-1003469

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