Lead Crystal batteries.

[Bala]

Lordy here again well here we are again my iveco50c18 at idle puts out 42 amps at idle the alternater supercheap spins very freely it is 60 to 140 amps I plan to run it with the 90amp battery I pulled out of the bank pushed by730w of solar but iam just a mug I dont know if it would work does any one know because it would be nice and quite

If you could use some punctuation it would make it easier to understand.

No, your plan will not work.

A car alternator will spin freely with no load, once it has to generate it will not spin freely. As an example if you were to run 60amp alternator from a petrol engine you would require a 5hp engine ( rough figures)

Run your car at idle and turn all the lights on, you will here the engine load up slightly, that it the HP required to drive the alternator under load.

If you have enough sun for the panels to provide 750w why would you not just use them to directly charge the batteries?

Your plan is to use panels to charge a battery to run a motor to drive an alternator to charge other batteries.

You could do it ( Sort of!!), but you would be just wasting a whole heap of energy.

[lordy]

Lordy here again well here we are again my iveco50c18 at idle puts out 42 amps at idle the alternater supercheap spins very freely it is 60 to 140 amps I plan to run it with the 90amp battery I pulled out of the bank pushed by730w of solar but iam just a mug I dont know if it would work does any one know because it would be nice and quite

[Mike90250]

.....we are in a motorhome have to top up with genie every know and then does anyone know how much 12v amps elec motor to run a60 amp alternater I dont like genies

And how do you plan to run the 12V electric motor, which I think you plan to use to spin a 60a alternator ?

[lordy]

Hi my name is lordy my exp with lead crystal batteries is 3 90amp batteries in a bank 480w solar x25amp 240v charger batteries cost $450 each didnt work batteries went to sleep took them back too reprogame them cant do with agm .problem is you need 1/3 recharge in capaside so =90amps so I will take off 1x90amp off bank witch means 60amp charger 1xmore 250 solar pannel=39amps keeping inmined we are in a motorhome have to top up with genie every know and then does anyone know how much 12v amps elec motor to run a60 amp alternater I dont like genies

[Sunking]

They are looking for pigeons to pluck.

[mikeinchester]

Hi I just joined this morning as I have had a similar experience to NuttyProfessor. I installed a 4kw system 3-4 years ago and was contacted by a solar company yesterday with basically two offerings. First the advantages of lead crystal storage but also a product described as a solartoptimiser which it was claimed would improve the efficiency of the inverter ( new one of course) from a current 80% to nearer 100%. On the high FIT rate in the UK this had attractions. I asked for independent verification of both their products and await a response. It was a "double gazing" style of presentation with probably prices to match. Does anyone have any experience or comments on the efficacy of these technologies and also what the costs of the components might be in order to qualify pricing. I don't want to dismiss it out of hand if there is worth in in it.

[NuttyProfessor]

Rather thought it might be. Anyone in the industry want to comment?

[Sunking]

OK. well I know the basic technology is not new, it was patented in 1979! So does enybody know what is new?

Same ole crap in a new box looking for Green Pigeons to pluck.

[NuttyProfessor]

Hi All
I have just recently heard about lead crystal batteries and read the 'data' presented on some websites which seems too good to be true. Claims of 7/800 cycles to 80% DOD. Does anyone have information on this type of battery or has used them for an extensive period?
Cheers
Jon

We were contacted by a solar system installer recently who were responding to an enquiry i'd made last year about the feasibility of adding storage to my 3.4kWp 4 year old installation. They said at the time I enquired that they were awaiting availability of, and I quote "the release of a game changing new battery technology". Well this week they claim that this game changing technology from Europe has just become available in the UK for them to install. When asked what this new technology was, they said "lead crystal". OK. well I know the basic technology is not new, it was patented in 1979! So does enybody know what is new?

The company claims longer life (more cycles), deeper discharge without damage, and intrinsic safety (no fire risk)when compared with Li but so far I've been unable to verify all these claims. Can anyone out there?

[PNjunction]

My biggest issue with lead-crystal is that it doesn't pass the over-the-counter test of being purchased locally by the average guy. If they are that great, then there should be no problem with *worldwide* over the counter distribution and support to the common man.

One competitor to lead crystal would be lead-graphite which I can obtain over the counter, which has been discussed ad-nauseum in the agm flavor-of-the-month.

Some manufacturers provide plenty of detail. Others only tout the advantages that all generic AGM batteries have over flooded cells. There might be indications that one can take them down to very low soc's and survive, but this is only nanny-protection from abuse, and a marketing bullet-point that doesn't mean much to those who engineer the system to operate properly for longest life.

I'd give lead-crystal a go if I wasn't so interested in Lithium-Iron (LiFepo4), but of course those are apples-to-oranges comparisons. Could it be just an issue of too-little-too-late?

[AfricaAndrew]

Ok then

[russ]

I dont see how your reply makes any sense.??

50 to 60a NETT into the batteries??? that's about a max of 3.6kwh at 5hrs. I dont see your panels putting out much more than that .. As you don't get full output over the 5 hrs. And NOBODY gets the panels rated output when used outdoors...
And no matter where in the tropics you are you don't get full output from panels over 5 hrs.. I know I live 11 deg north of the equator.

It is back of the envelope calculations - just grabbing numbers from thin air.

[Sunny Solar]

The 50 - 60 Amps was net into the batteries with a base load, refrigeration, some electronics, etc. 5hrs x the panel rating (in our case 1040W) is not an unusual daily expectation for the tropics.

I dont see how your reply makes any sense.??

50 to 60a NETT into the batteries??? that's about a max of 3.6kwh at 5hrs. I dont see your panels putting out much more than that .. As you don't get full output over the 5 hrs. And NOBODY gets the panels rated output when used outdoors...
And no matter where in the tropics you are you don't get full output from panels over 5 hrs.. I know I live 11 deg north of the equator.

[AfricaAndrew]

I guess we used about 5kWH per dayI guess you didn't as it would take over 7hrs of midday sun to achieve that.

The 50 - 60 Amps was net into the batteries with a base load, refrigeration, some electronics, etc. 5hrs x the panel rating (in our case 1040W) is not an unusual daily expectation for the tropics.

[Sunny Solar]

I guess we used about 5kWH per dayI guess you didn't as it would take over 7hrs of midday sun to achieve that.