Solar in winter months?

St3v3

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1,318
I have told you I'm not going to bother to explain it to you. But I'll give you a clue.
The linear part of those graphs can be represented as a simple formula with a constant to give the offset from zero.
Think about it.
Sure it can, but as we have actual data at the bottom of the curve that would be incorrect.
 

in h

Full Member

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747
At the bottom of the curve, we are no longer in the linear part. Ignore that bit.
 

in h

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747
I'm sorry that you are unable to grasp the basic principle. I'd not have tried to explain it at all if I'd realised.
 

Full Member

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I'm struggling to remember what this thread is about .................. can anyone give me a pointer or two?

Colin :):):)
 

St3v3

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1,318
I'm sorry that you are unable to grasp the basic principle. I'd not have tried to explain it at all if I'd realised.
You're taking a dataset and ignoring what doesn't fit. Even the data that is nearer to the value you're trying to calculate. Madness.
 

Trotter

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2,138
I'm struggling to remember what this thread is about .................. can anyone give me a pointer or two?

Colin :):):)
I’ve blocked one contributor on this thread. Only reading one side of the argument has made no difference at all.

Btw. It was Phantom asking about doubling the 120 panel he had already fitted. ‘Tis funny how it’s always the same contributor who hijacks a thread to turn it into his own tirade. By blocking it you forgo the bs.
 

Phantom

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246
Oh, are we back on topic? :sleep:
Parked up on a field in Derbyshire on a cloudy wet day been doing some measurements of power consumption. This morning the batteries were showing 12.72v but with not much use are now at 12.3v so guess I need to check them out individually.
 

Trotter

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2,138
Oh, are we back on topic? :sleep:
Parked up on a field in Derbyshire on a cloudy wet day been doing some measurements of power consumption. This morning the batteries were showing 12.72v but with not much use are now at 12.3v so guess I need to check them out individually.
Glad to see your still here. I wondered if you’d dozed off, like most of us. 👍
 

trevskoda

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1,733
I'm keen to hear, just for reference. I'll be able to link to it next time this comes up lol.
It takes piston speed to force the tappered rings out on the bores,if light use they tend to have less pressure and polish the bore,and let oil pass by,also as the engine oil not running to temp sludge and acids build up and require more oil changes,take the rocker cover of a town engine and compair it to a high speed motorway engine,yep much less crud as the deturgents get to do there work.
 

St3v3

Full Member

Messages
1,318
It takes piston speed to force the tappered rings out on the bores,if light use they tend to have less pressure and polish the bore,and let oil pass by,also as the engine oil not running to temp sludge and acids build up and require more oil changes,take the rocker cover of a town engine and compair it to a high speed motorway engine,yep much less crud as the deturgents get to do there work.
Thanks Trev.
 

in h

Full Member

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747
It start of on solar Colin but some arsehole just ranted on and on and on guess they havent got a life lol
It started as a discussion of how to generate power when solar doesn't work, then onto the technicalities of idling engine, then someone introduced an irrelevant graph and kept asking what it meant.
 

Trotter

Full Member

Messages
2,138
Never seen a thread go so far off topic.
Just fit as much solar as poss a n d some extra batts .
Get in your van and enjoy ..if your power runs out, go to bed . Get some back up lights that run off AA battery ..job done.
Tbh. It happened very often in the past, then it stopped. Now it’s back. We can only hope temporary 😬
 

nabsim

Full Member

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2,395
Just be careful, I killed a set of PowerFrame battery’s in a little over a year. Don’t rely on any reading on the battery’s if you have solar connected and it’s harvesting, you have to let the battery’s settle with no charge to get a true reading
 

wildebus

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2,856
Just be careful, I killed a set of PowerFrame battery’s in a little over a year. Don’t rely on any reading on the battery’s if you have solar connected and it’s harvesting, you have to let the battery’s settle with no charge to get a true reading
on a roll, Neil :)
Again, well said. A voltage reading to determine the battery charged state (and many supposed State of Charge Batteries monitors just translate voltage to a supposed charged state level) is fairly meaningless whenever a battery is under charge or under load.
And if Lithium Batteries, it is pointless at any time.
Furthermore, as a battery ages badly and loses capacity, a voltmeter reading can become very misleading as the voltage when a charge is supplied can go up very rapidly and give a misleading indication of both the battery AND the performance of the charger.
 

Phantom

Full Member

Messages
246
Just be careful, I killed a set of PowerFrame battery’s in a little over a year. Don’t rely on any reading on the battery’s if you have solar connected and it’s harvesting, you have to let the battery’s settle with no charge to get a true reading
I waited until both leisure batteries were showing fully charged by the solar controller and then disconnected the older one. I'll let it settle overnight and measure the voltage in the morning which I guess should indicate it's true capacity.
 

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