"Ron Jones" <[EMAIL PROTECTED]> wrote in
message news:[EMAIL PROTECTED]
> Brian Holt wrote:
>> "tiamiboat" <[EMAIL PROTECTED]> wrote in
>> message news:[EMAIL PROTECTED]
>> >
>> snip
>>
>> I believe the new regulator we bought for our solar panel does this
>> too. Don't know if it does this whilst the panel is charging the
>> batteries. So far the panel is working well but we're not so sure
>> about how well the batteries are holding the charge. On Sunday
>> evening when we connected the panel the regulator suggested that our
>> batteries (3 dom, 1 starter) were around 60% charged. This morning
>> they were saying 80% ish although we have had flickers of being
>> higher than this. The panels produce 225 w/d. Testing has shown
>> anything from 1 - nearly 4 amps being produced depending on the
>> strength and height of the sun. We are considering some
>> battery "vitamins" to improve the life and charge holding of the
>> batteries as this is cheaper than buying new ones. What do you think?
>> Debbi
>> nb TIAMI
>>
>> I would try giving what you have got a full charge first and then
>> check the SGs of each cell, if your only putting an average of 3 amps
>> per hour for 12 hours a day in, 36 Ah and then minus how much you use
>> each day I would be very surprised if your Solar cells will ever
>> charge your batteries fully before next winter.
>
> Read my earlier post - 225Wh/d = 17Ah per day, not 36!
I did read your post, but Debbie said she was getting 4 Amps at times. If on
a sunny day like today and today we have had more than 12 hrs sun,this
stayed at 4 Amp then she would get more than 36 Ah regardless of what the
rating of the cell is. But maybe her ammeter is duff, she had drunk to much
red wine, the ammeter was made by the same company that made my car speedo,
who knows, but anyway I would expect this to decrease exponentially (I
Think) as the batteries charge up so to get them fully charged using just
the solar cells is probably an awful long way off (Tech. term infinity)
snip...
> Best to get the batteries *fully* charged first -
I thought that's what I said
Brian.
>
>
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