Solar charger circuit replaces the original

[cabu]

Hello Friends,

my batterie was not charged anymore and I figured out that the AC-Generator (10A-Typ) was working, but the charge controller was dead. A new one would cost me here in Germany around 100 Euro (~$150). So I was looking for alternatives and found a waterproof 12V/16A charger for Solarpanels (12 Euro ~$18). The input range fit the output of the AC-Generator and so I connected a 20A bridge rectifier (1 euro) to the AC-Generator to convert to pulsed DC. Then I connected the Solar-Charger to the batterie. This was all done at the connector where the old charger was pluged in before. So no soldering or wire cutting needed.

My Battery is now happy again and me too!!

carl !

 

[joekimtkd]

Nice job.

but that Bridge rectifier and Solar charger will not regulate the charging the battery and it could fry the battery~!

If you don't want to get the Regulator, get cheap Volt meter (small multi-tester etc.) and watch the battery voltages and stop charging and so on, manually.

Or, just use cheap timer ($7.00) and tricle charger ($7.00) to charge everyday for 3 to 5 hours without those Bridge rectifier and Solar charger.

Of course, the other members will give you better ideas here but I thought I give you my thought.

Happy New Year.

Joe.

 

[cabu]

@ joekimtkd

Hello, the Solar-Charger is intelligent! It stops charging, when the battery is full.
This manually thing,- I don't want that, because most failures caused by operating devices (by Humans!!)

And I prefer the lazy way...

Happy New Year

carl !

 

[joekimtkd]

Of course, most famous inventors are all lazy bum~, You know?!
I'm one of them too but only lazy part though~!

If that solar charger has regulator built in, just use that only.
Don't use bridge rectifier along with it. 'cause bridge rectifier doesn't know when to cut the power down. and it will fry the battery.

When I had Zetor 70 Hp tractor, I noticed battery fluid is keep on over flowing. and I thought it was from tractor's movement. but later time I found battery was kept on over charged. So I start check the circuits and I found regulator was gone. That was why it kept on charging~!

and regulator $150.00, Alternator for $140.00 dealer asking. but if I buy similar alternator with rugulator built in, it will be $100.00.
So, I bought that $100.00 one and modify the circuits and frame for the alternator too. and of course another $150.00 for new battery.
'cause, over charging fry the battery too...

and my 1992 Grand Marquis has old battery as 1999 installed battery.
but since new, I had tricle charge every day for 3 hours with small tricle charger. and it still holding charge really good. and it works great YET~!

So, I'm doing that to my DEAR Kubota too, right now.
Hopefully it last another 20 years~~~!!!

Happy New Year again.

Joe.

 

[aquaforce]

Hello Friends,

my batterie was not charged anymore and I figured out that the AC-Generator (10A-Typ) was working, but the charge controller was dead. A new one would cost me here in Germany around 100 Euro (~$150). So I was looking for alternatives and found a waterproof 12V/16A charger for Solarpanels (12 Euro ~$18). The input range fit the output of the AC-Generator and so I connected a 20A bridge rectifier (1 euro) to the AC-Generator to convert to pulsed DC.

Nice use of technology at a great price. Good job. This type of fix was very expensive not long ago.
Thanks for the post and idea.

 

[eserv]

Hi Joe
It sounds like he is using a solar panel regulator which would require a DC input. I think that is why he used the bridge rectifier and if so would make a good fix.

 

[joekimtkd]

I guess I mis-understood too but Carl said he connect this bridge rectifier to AC generator which I'm guessing alternator.
and he is using another solar panel which contains regulator...
Solar panel is good. 'cause it has regulator built in.
but what if he made it to parallel connection for both ot them...?

Carl, could you show me your circuit that how it works with bridge rectifier with solar panel? or even picture with it?

Thank you!

Joe.

Happy new year, Ed...!

 

[eserv]

Carl called it a charger for solar panels, I think he means a regulator for charging batteries with solar panels and not a solar panel itself. I could be wrong of course! It's often hard being real clear on things with different terminology and language barriers!
Happy New Year to you as well Joe and everyone else! Hope you all had a good Christmas!
Ed

 

[joekimtkd]

found a waterproof 12V/16A charger for Solarpanels (12 Euro ~$18). The input range fit the output of the AC-Generator and so I connected a 20A bridge rectifier (1 euro) to the AC-Generator to convert to pulsed DC. Then I connected the Solar-Charger to the batterie. This was all done at the connector where the old charger was pluged in before. So no soldering or wire cutting needed.

My Battery is now happy again and me too!!

carl !

My darn English problem~~~!!! Sorry, Ed.
You are right~! He says "Solar-Charger"~!!!
I'm sorry, Ed. I thought he said Solar panel...

Carl, Could you get me a link or something about that "Solar-Charger"?
It will be a biggest money saving project...! I mean it.

http://www.canadiantire.ca/AST/brow...11891P/30A%2C+12V+Solar+Charge+Controller.jsp
I found this in Canadian tire site. but it is 30A, 12V. and $140.00~!

Thank you, Ed. You are always kind and smart~!
Happy new year again.

Joe.

 

[cabu]

Hello,

I found my charger at ebay: 280425765036

A little bit more expensive 18,- Euro.

Here with better picture: 150393947321

I guess, you can find something like that around the globe.


My wiring:

I have an AC 1 phase Generator. This is rectified by a bridge to pulsed DC because the charger likes DC at it's input. The two charger output's are parallel connected to get 2x 8A = 16A. The charger will start at 13,4 V and stop at 14,4 V. Some LED's give you info about his und Battery status.

Actually very simple.

carl !