Nickel Iron vs. Lead Acid - Off Grid battery debate
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What efficiency do you reckon? I have a computer monitoring my batteries and logging the parameters every 5 secs. From my calculation so far, I seem to be getting 77% charge/discharge cycle. Interestingly though, there seems to be a dead level - the first 0.9amps charging contributes nothing. Can anyone else confirm this?Leave a comment:
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What efficiency do you reckon? I have a computer monitoring my batteries and logging the parameters every 5 secs. From my calculation so far, I seem to be getting 77% charge/discharge cycle. Interestingly though, there seems to be a dead level - the first 0.9amps charging contributes nothing. Can anyone else confirm this?Leave a comment:
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Also, if anyone needs to reduce the voltage to their inverter by 1 or 2 volts, a method I use is to add 2 or 3 forward biased diodes between the batteries and the inverter. It's not a particularly efficient method but it works. I charge my (38) batteries at 66v from either solar or genny and 3 diodes drop the voltage to 63.75v to the inverter, since my inverter cuts off at a little over 64v.Leave a comment:
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Due to its low specific energy, poor charge retention, poor charge/discharge efficiency, high maintenance, and high cost of manufacture, other types of rechargeable batteries have antiquated NiFe batteries.
There only real application that can be justified is in Mining Industry for emergency lightning where batteries are exposed to high temps, heavy vibration. slow charge/discharge, efficiency and cost is of no concern.
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Well, I have a chicom set and bought it via BeUtilityFree.com I don't plan on buying another one. I think they have a lot of domestic use in ChinaLeave a comment:
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My comments to KIRK1's comment was meant to suggest that if he believes "there's right now a host of Fe-Ni vendors in china so somebody must be buying Fe-Ni batteries" (according to who, BTW ?) he may be a victim of the same type of marketing hype that Musk tries to pull off with is production capability fantasies and projections. That is, China MAY have all sorts of production capacity, but China MAY also (or rather) have a goal of making folks think they have all sorts of production capacity that they in fact do not have, and/or/also that would like folks to think sales are greater than actual for reasons of their own. Or, there may indeed be a boatload of vendors who aren't producing as much or as profitably as they'd like everyone to think.
Then too, the idea that there's a lot of Fe-Ni Chinese batteries sold seems to be an statement that could use some verification and context.Leave a comment:
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Guest repliedI've followed the Fe-Ni battery saga for a year or so: i believe if anyone is going to compete with energy trusts, it would have to be with such batteries.
There's right now a host of Fe-Ni vendors in China: so somebody MUST be buying them.Leave a comment:
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Guest repliedWell, I have on order a set of NiFe batteries [bank of 800 a/h]. So, no experience, yet, but looking forward to it and never having lead-acid again. Though I've had great luck with them, more than 20 yr. on my present set.
But, stay tuned. I shall be glad to relate both good and bad I find with the NiFes once I get them and am using them.Leave a comment:
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