Double Output Solar Charge Controller (1 Viewer)

[andy63]

hi, hoping for a bit advice /guidance..
there was a thread last week asking about using the 2nd outlet on a controller to charge batteries and it was established it was most probably a battery load output and not suitable for charging, but someone did say dual output controllers were an option.. ive had a look.......
would like to be able to charge a start battery and feel this would be a good solution , as opposed to say a single output controller and using a voltage sensing relay to link the start battery..
I have noticed that all the double outlet controllers are pwm.. cant find an mppt one...not sure why, but think this may still be the best way to go , ie is a pwm controller a reasonable option... it would be a 10a controller running a 120w panel..
any advice and views appreciated
thanks andy

 

[Techno]

Do you want to give priority to your starter battery or your leisure battery. What is most important to you

 

[Deleted member 29692]

Wouldn't a battery master do the just as well with less messing around?

 

[andy63]

Do you want to give priority to your starter battery or your leisure battery. What is most important to you

jesus that was quick andy
the leisure would take priority
ta

 

[andy63]

Wouldn't a battery master do the just as well with less messing around?

not familiar with itwill have a look... is it a mains only device
ta andy

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[Techno]

jesus that was quick andy
the leisure would take priority
ta

Just fit a normal regulator and a CBE CSB2 relay about £22 ebay This will only send charge to the starter battery once your leisure has reached 13.6 volts. After reaching 13.6 the relay will pass up to 4 amps max to the starter battery until the leisure drops to 12.6. SO if you put a load on the leisure battery the voltage will immediately drop to 12.6 or less and stop sending precious charge to the starter battery.

For those who need to preserve their starter battery at all costs like when in storage then a Vanbitz battery master is the best option as this will transfer 1.1 amps while ever the starter is half a volt lower than the leisure

 

[Deleted member 29692]

not familiar with itwill have a look... is it a mains only device
ta andy

No. It trickle charges your engine battery from the leisure battery and keeps it topped up. So whatever your charge source is, EHU, solar etc charges your leisure battery in the normal way and the battery master takes care of your engine battery.

http://shop.motorhomefun.co.uk/product/battery-master/

 

[andy63]

Just fit a normal regulator and a CBE CSB2 relay about £22 ebay This will only send charge to the starter battery once your leisure has reached 13.6 volts. After reaching 13.6 the relay will pass up to 4 amps max to the starter battery until the leisure drops to 12.6. SO if you put a load on the leisure battery the voltage will immediately drop to 12.6 or less and stop sending precious charge to the starter battery.

For those who need to preserve their starter battery at all costs like when in storage then a Vanbitz battery master is the best option as this will transfer 1.1 amps while ever the starter is half a volt lower than the leisure

thanks for the input andy ..ill have a look at the relay option

 

[andy63]

No. It trickle charges your engine battery from the leisure battery and keeps it topped up. So whatever your charge source is, EHU, solar etc charges your leisure battery in the normal way and the battery master takes care of your engine battery.

http://shop.motorhomefun.co.uk/product/battery-master/

thanks , ill look at all the options mentioned,
andy

 

[Techno]

thanks for the input andy ..ill have a look at the relay option

£21.99
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Cheapest battery master is in Jim's shop

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[hilldweller]

£21.99
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Been working 2 years here, it's not rocket science. Sense 13.6V on leisure then switch on link to starter. When volts drop on leisure cut feed to starter.

 

[andy63]

Been working 2 years here, its not rocketscience. Sense 13.6V on leisure then switch on link to starter. When volts drop on leisure cut feed to starter.

it isn't lol...
I have a a dual sensing 120 amp blue sea relay connecting my leisure with the auxiliary vehicle battery and has been working well for years.. the transit dual battery set up isolates the start battery completely when you switch off ignition so that isnt an issuefor me..(the start battery does get charges off a 3 output stirling pro charge 20 when on hook up )
was just wanted to know if a dual output controller might be a better option on another planed installation, and why I couldn't find a dual output mppt type controller...
many thanks for all the replies
ta andy

 

[funflair]

Hi @andy63 our Votronic does the engine battery as well if required but we have that function built in with the CBE system so I have not got it wired.

It is called Duo and is MPPT it passes 1 amp to the starter battery to the correct voltage.

Got ours from Road Pro.

 

[Techno]

See this thread also. The Sterling battery maintainer is quite expensive compared to the CBE CSB2 and only transfers 3 amps but it is a nice robust piece of kit and the one I'm using lately until I play with something else
http://www.motorhomefun.co.uk/forum...ery-master-to-my-existing-sterling-b2b.98913/

 

[andy63]

Once again thank you for the input @funflair and @Techno100 .I'll do the reading ,am inclined towards the cbe csb2 relay you linked to andy... For the batt link
Cheers again ...andy

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[eddie]

Once again thank you for the input @funflair and @Techno100 .I'll do the reading ,am inclined towards the cbe csb2 relay you linked to andy... For the batt link
Cheers again ...andy

Well I've just donated a Baattery Master is a sort of auction for Haggers who is running a double marathon. Worth a fiver bid to save £65.00 if no one else bids

The original and the best, automatically shuts down if short circuited, over loaded or under voltage, guaranteed 100% fully waterproof, vibration and dust proof and of course has built in automatically resetting fuses

 

[eddie]

Fogot Haggers sponserhip thread lol

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[andy63]

Well I've just donated a Baattery Master is a sort of auction for Haggers who is running a double marathon. Worth a fiver bid to save £65.00 if no one else bids

The original and the best, automatically shuts down if short circuited, over loaded or under voltage, guaranteed 100% fully waterproof, vibration and dust proof and of course has built in automatically resetting fuses

Cheers Eddie. Very generous offer...not sure how you are working your auction..is it a new donation required to enter ..I sponsored Paul when he first mentioned it a few weeks back along with a few others off the forum..
Ta andy

 

[irnbru]

@andy63 Thebidding is here but no point in you bidding since you would be fitting it for me

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[eddie]

Cheers Eddie. Very generous offer...not sure how you are working your auction..is it a new donation required to enter ..I sponsored Paul when he first mentioned it a few weeks back along with a few others off the forum..
Ta andy

Didn't think of that?

@andy63 Thebidding is here but no point in you bidding since you would be fitting it for me

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Ah, problem solved lol

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