[Public-List] Batteries, solar panel.

[Marcelo D. Gentinetta]

All great suggestions! Thank you group! One question for Justin. Where is your 100W panel located? Is it fixed?

> On Aug 4, 2018, at 7:02 PM, greg.hounsell via Public-List <public-list at lists.alberg30.org> wrote:
> 
> As John Boor mentioned about battery ages - don't mix them. 
> I would either work with the one that I have until it needs replacing and then buy two to increase bank size or replace the house bank now with two new batteries. Depends on needs and budget of course.
> CheersGreg
> 
> Sent from my Galaxy Tab® S2
> -------- Original message --------From: "Marcelo D. Gentinetta via Public-List" <public-list at lists.alberg30.org> Date: 2018-08-04  5:55 PM  (GMT-05:00) To: Alberg 30 Public List -- open to all <public-list at lists.alberg30.org> Cc: "Marcelo D. Gentinetta" <vanguard64 at cox.net> Subject: Re: [Public-List] Batteries, solar panel. 
> My present batteries are approximately 2 years old. So if I add a second house battery and alternate the two as you mention, do I then need to add a second battery selection switch?
> 
>> On Aug 4, 2018, at 3:20 PM, Greg Hounsell via Public-List <public-list at lists.alberg30.org> wrote:
>> 
>> Marcelo;
>> 
>> Your house and start battery, from how you describe it, going through the
>> battery selector switch are not "in parallel" unless the switch is set to
>> "both". In terms of this discussion I would think of them as separate banks.
>> 
>> Before adding a second house battery, how old and used is the one you have?
>> The reason asking is that adding a new battery in parallel to an older
>> battery can potentially shorten the new battery's life if there is more
>> than say a couple years difference. An older battery slowly over time loses
>> it's capacity to reach 100% charge, nor hold charge as easily as a new
>> battery. If, say the existing battery can only ever be charged to 90% then
>> when you connect the new battery to it they will try to equalize. The
>> weaker drawing down the newer.
>> 
>> If you are not using them in parallel but as separate banks they can be
>> placed where most convenient. Some people do this and alternate which
>> battery gets used each day as the other gets charged.
>> 
>> Cheers
>> Greg
>> 
>> 
>> On Sat, Aug 4, 2018, 3:14 PM Marcelo D. Gentinetta via Public-List <
>> public-list at lists.alberg30.org> wrote:
>> 
>>> I agree with Michael that you can over analyze everything. Unfortunately,
>>> I have an analytical mind so it is a battle!.
>>> I am trying to keep the system as simple as possible though and trying to
>>> learn more about the whole process. Greg’s explanations have been very
>>> helpful. This brings me to another question. If you added a second house
>>> battery, where would you locate it in a liner boat and would it be in
>>> parallel to the present house battery which is already in parallel to the
>>> starting battery?
>>> 
>>> 
>>> 
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