T4D #10 – Lead-crystal battery, solar power lab, Panavice PCB holder – ExSolar | Solar & Wind Products; View Hundreds of Solar & Wind Products Here!

T4D #10 – Lead-crystal battery, solar power lab, Panavice PCB holder – ExSolar

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I discuss my visit to ExSolar and the Lead-Crystal battery they have given me to test / review.
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Thanks to :-
ExSolar – Supplier of Solar Panels Charge Controllers, Inverters, lead crystal batteries and related supplies. : http://exsolar.co.za/
David Cooke – +27 (0)21 851 1700

In this video:
* I show the lead-crystal battery I will be testing from ExSolar.
* I show my Panavice PCB holder that arrived.
* I talk about the project to solar power my lab

Lead crystal battery details:

12V 22Ah / 10H Lead Crystal Battery

Hardware Features
The Lead Crystal Battery out performs any other battery technology at extreme temperatures due to no fluid that can freeze and expand causing bending of plates. The battery functions from -40 to +60 C°.
The expected life of the Lead Crystal Battery technology is 7 to 10 years, with a 3 year warrantee. A 5 year warrantee is also available.
The technology’s shelf life is 3 years without constant float changing.
The batteries can be mounted on the side with no risk of spilling.
The battery can be discharged 100% and can be recharged with no special charging processes, no memory is formed.

It generates low internal temperatures during the charge and discharge functions.
The battery is designed to work with a 5% ripple current, which will only affect the cycle life by 1% under normal conditions.
When overcharged, the battery will recover normal.
Recharges up to 5 times faster than competitive products

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12 Comments on "T4D #10 – Lead-crystal battery, solar power lab, Panavice PCB holder – ExSolar"

  1. electrodacus says:

    Great to see you got the battery. I think you will need a lot of discharge cycles to be a relevant test.
    You will need first to test the capacity and probably the Metrix will work great for that.
    It seems the 22Ah capacity is for 10 hour discharge rate so 0.1C.
    But if you only discharge and charge the battery that slow then you need a full day just for a charge-discharge cycle and take you more than 3 months just to cycle 100times.
    Found the spec 6-CNFJ-22.pdf ….

  2. electrodacus says:

    The spec is not exactly complete they forgot to mention at what discharge rate was the cycle life test performed.
    But it seems it still prefers a 50% depth of discharge since is a significant improvement over the 100% DOD and 80% DOD.
    At 50% DOD it will still have 90% of the original cap after 2000 cycles but then will deteriorate sharply from there.
    So for 50% DOD at 0.1C 11Ahx12V= 132Wh x 2000 = 264kWh then 90$/264Wh = 34 cent/kWh stored not that great but not bad if the spec are correct.

  3. electrodacus says:

    … So 34 cent/kWh of stored energy is not as good as A123 that are at about 20 cent/kWh stored but then you need much more complex and expensive electronics to monitor and balance the cells for the A123 and it may get at a similar price or worse.
    The conclusion is the is better to directly use as much as possible the energy directly from solar panel when available and limit the use of battery.
    The solar panel can get the investment back but is not the case for batteries as of now.

  4. Look forward to the results.

  5. Sajjad Akram says:

    You said everything right. so what about the charging chemistery? does a 3 state charger for normal lead acid battery will work with lead crystal battery?

  6. mjlorton says:

    Thanks, all interesting info. Totally agree about direct use of the power as apposed to heavy / deep cycle use of batteries. I ultimately want to use the grid as my "battery" when that is possible and only rely on a battery bank when the grid fails.
    My main interest in this technology is to see how robust it is if abused vs lead acid etc.
    Cheers, Martin.

  7. mjlorton says:

    Thanks for the feedback! I enjoyed a 6 month working holiday in Ireland back in 2000 and certainly miss some folks from that neck of the woods. Cheers, Martin.

  8. mjlorton says:

    Yes, the lead crystal battery uses the same charging kit and process as normal lead acid batteries. It can apparently be charged and discharged far quicker without harm (heat less of an issue)….I'll see if I can test this theory. Cheers, Martin.

  9. using batteries to store for home is unfortunately not economical yet.
    they are too expensive and short lived. it's more expensive just in battery wear than to buy from the grid..
    but grid tie works where available. grid tie really is the most elegant by far except for the zombie apocalypse but not sure we should make decisions based on that : )

  10. btw, lead is dead.
    I hear nife batteries have extreme life but very few make them and they want ridiculous money for them

  11. mjlorton says:

    Thanks for the info…will look into that. Cheers.

  12. I have a charging question. These betta batteries are very durable by the looks of things. So, can I connect a bunch of them in parallel and charge them all at the same time. Since they are all the same battery, would this be safe? (provided you don't know their DOD)

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