Welcome to BoatingForumz.com!
FAQFAQ      ProfileProfile    Private MessagesPrivate Messages   Log inLog in

Charging batteries simultaneously with both solar and wind

  
   Boating Forums (Home) -> Boat Electronics RSS
Next:  Headset for on-deck communication  
Author Message
Len1

External


Since: Oct 24, 2004
Posts: 24



(Msg. 1) Posted: Mon Mar 06, 2006 7:03 pm
Post subject: Charging batteries simultaneously with both solar and wind
Archived from groups: rec>boats>electronics (more info?)
I am looking for a solution for the fact that a regulator shuts off
charging current when it measures say a 14 volts on the circuit.

I have a windgenny that charges with 14,4 volts in bulk-fase.
That causes the solarpanels not to charge at all cause their regulator
measures this 14,4 volts and decide(s) "the battery is already
full"...

I hate to split up my housebank in parts / don't like
battery-isolators or relais.
I also don't like to fool a regulator by forced voltage drops so it
keeps on charging (at one moment the battery will really be full...).

Is there some "many"-watts charger with multiple in-ports that will
make use of all power offered by the various sources simultaneously?

Thanks, Len.

 >> Stay informed about: Charging batteries simultaneously with both solar and wind 
Back to top
Login to vote
Brent Geery

External


Since: Jan 05, 2006
Posts: 7



(Msg. 2) Posted: Mon Mar 06, 2006 7:03 pm
Post subject: Re: Charging batteries simultaneously with both solar and wind [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
On Mon, 06 Mar 2006 19:03:42 +0100, Len
wrote:

>I am looking for a solution for the fact that a regulator shuts off
>charging current when it measures say a 14 volts on the circuit.
>
>I have a windgenny that charges with 14,4 volts in bulk-fase.
>That causes the solarpanels not to charge at all cause their regulator
>measures this 14,4 volts and decide(s) "the battery is already
>full"...

That's exactly what should happen. What's the problem? You can't
force more current into the batteries without causing the battery
voltage to climb higher and boil off your battery electrolyte. That's
what the regulators are trying to avoid.

>I hate to split up my housebank in parts / don't like
>battery-isolators or relais.
>I also don't like to fool a regulator by forced voltage drops so it
>keeps on charging (at one moment the battery will really be full...).
>
>Is there some "many"-watts charger with multiple in-ports that will
>make use of all power offered by the various sources simultaneously?
>
>Thanks, Len.

Yours already do, up until the batteries reach regulation voltage.
Just make sure the voltage set points are the same for all charging
sources; temperature compensated types are best.

If you want to take advantage of your surplus electricity, that
electricity that your batteries can't accept, switch to a
diversion-type charge controller.

With a diversion type regulator when the batteries reach the voltage
set-point it will connect a resistance load to the batteries that
counters any excess electricity and burns it up as heat. You can have
free water and/or cabin heat.

--
BRENT - The Usenet typo king. Smile
*** Free account sponsored by SecureIX.com ***
*** Encrypt your Internet usage with a free VPN account from http://www.SecureIX.com ***

 >> Stay informed about: Charging batteries simultaneously with both solar and wind 
Back to top
Login to vote
Len1

External


Since: Oct 24, 2004
Posts: 24



(Msg. 3) Posted: Tue Mar 07, 2006 4:19 am
Post subject: Re: Charging batteries simultaneously with both solar and wind [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
On Mon, 06 Mar 2006 18:07:46 -0800, Brent Geery
wrote:

>On Mon, 06 Mar 2006 19:03:42 +0100, Len
> wrote:
>
>>I am looking for a solution for the fact that a regulator shuts off
>>charging current when it measures say a 14 volts on the circuit.
>>
>>I have a windgenny that charges with 14,4 volts in bulk-fase.
>>That causes the solarpanels not to charge at all cause their regulator
>>measures this 14,4 volts and decide(s) "the battery is already
>>full"...
>
>That's exactly what should happen. What's the problem? You can't
>force more current into the batteries without causing the battery
>voltage to climb higher and boil off your battery electrolyte. That's
>what the regulators are trying to avoid.

With a 1000 Ah Bank, with batt charge status say at 60%, voltage in
bulk stage is 14,4, current from the wind genny is say 15 amps. In
that case I'd' like the additional 12 amps from my solar panels to
help doing the job I put them up for, but the regulator keeps them
form doing so.
Len.
 >> Stay informed about: Charging batteries simultaneously with both solar and wind 
Back to top
Login to vote
Meindert Sprang

External


Since: Feb 01, 2006
Posts: 146



(Msg. 4) Posted: Tue Mar 07, 2006 8:09 am
Post subject: Re: Charging batteries simultaneously with both solar and wind [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
"Len" wrote in message

>
> With a 1000 Ah Bank, with batt charge status say at 60%, voltage in
> bulk stage is 14,4, current from the wind genny is say 15 amps. In
> that case I'd' like the additional 12 amps from my solar panels to
> help doing the job I put them up for, but the regulator keeps them
> form doing so.

Hi Len (I'll answer your e-mail later),
I don't think that the voltage is 14.4 at 60% charge. The 14.4V is the point
where the bulk charge should stop. But during the bulk stage, the voltage
slowly rises from whatever value to 14.4V while the current is say 15A.
during that period, the current from the solar panels could contribute but
the moment the voltage reaches 14.4V you're at about 80% charge and the
system should change to equalize stage with a voltage of 13.8V.

Meindert
 >> Stay informed about: Charging batteries simultaneously with both solar and wind 
Back to top
Login to vote
Len1

External


Since: Oct 24, 2004
Posts: 24



(Msg. 5) Posted: Tue Mar 07, 2006 10:11 am
Post subject: Re: Charging batteries simultaneously with both solar and wind [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
On Tue, 7 Mar 2006 08:09:06 +0100, "Meindert Sprang"
wrote:

>"Len" wrote in message
>
>>
>> With a 1000 Ah Bank, with batt charge status say at 60%, voltage in
>> bulk stage is 14,4, current from the wind genny is say 15 amps. In
>> that case I'd' like the additional 12 amps from my solar panels to
>> help doing the job I put them up for, but the regulator keeps them
>> form doing so.
>
>Hi Len (I'll answer your e-mail later),
>I don't think that the voltage is 14.4 at 60% charge. The 14.4V is the point
>where the bulk charge should stop. But during the bulk stage, the voltage
>slowly rises from whatever value to 14.4V while the current is say 15A.
>during that period, the current from the solar panels could contribute but
>the moment the voltage reaches 14.4V you're at about 80% charge and the
>system should change to equalize stage with a voltage of 13.8V.
>
>Meindert
>

Okay..... thanks.... I needed that..... I was (obv. erroneously)
convinced bulk charging was executed by forcing a voltage of 14,4 v...
So... (your remark is slowly being processed and internalised), there
is no "competition" between sources or regulators whatsoever, right up
to the moment the battery reaches a 80% charge?
I am looking forward to your email.... Smile
Len.
 >> Stay informed about: Charging batteries simultaneously with both solar and wind 
Back to top
Login to vote
Display posts from previous:   
Related Topics:
The Solar Panel Simulator! - While trying to figure out where solar enthousiasts are going to put enough square miles of solar panels to produce 6KW of power for their ever- increasing needs, I think it's time to introduce another "boat simulator", similar to my Liveaboa...

Solar panel regulator size - Apologies for what may be a simple question. Local chandler has 10 amp regulators for only $10 more than the 6amp model. 10 amp is way above my needs but other than $10 is there any downside to using the higher rated regulator? And while I'm at it what'...

Small ~ 5 watt solar panels any good ? - Are small ~ 5 watt solar panels any good for providing little charge to prevent discharge of the battery when the boat is not used for a week or two? Or should I get a bit larger panel in 10-15 watt range ? Would you consider these small panels as just....

what voltage to start charging? - I've got a 300AH domestic battery bank and monitor the voltage across it while cruising. It's usually around 12.8 when charged. What does it have to drop to before I run the engine to recharge it?

Charging circuit, 200Merc Help - Can someone tell me how to check whether my charging circuit is working on this old Merc? I ran a little test on the rectifier which indicated it was bad and have just replaced it. Now, if I check voltage across one of the batteries, with engine off, i...
   Boating Forums (Home) -> Boat Electronics All times are: Pacific Time (US & Canada)
Page 1 of 1

 
 You can post new topics in this forum
You can reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum



[ Contact us | Terms of Service/Privacy Policy ]