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Lead crystal batteries

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1 minute ago, MartynG said:

Expensive?

I don't know, they were mentioned on another forum I'm on waiting for info on price.

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Some quite bold claims viz faster charging, but despite the 2nd document from 2014, their use does not seem to have caught on. They cant be a step change in value vs performance over traditional lead acids ........btw, they are still lead acid.

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6000 cycles... at 20% depth of discharge. Good figures but at pretty light usage.  Noting the Amazon price, I doubt the through life costs stack up for most Narrowboat applications. 

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11 minutes ago, Sea Dog said:

6000 cycles... at 20% depth of discharge. Good figures but at pretty light usage.  Noting the Amazon price, I doubt the through life costs stack up for most Narrowboat applications. 

Not counting the special charger required.

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And not only the very complex and specific charge profile, which is not available on most alternator, mains chargers or solar controllers, do these batteries have the same intolerance to under charging as standard AGM batteries. If so, that is a lot of battery cost to quickly kill if not on shore power , or long engine / generator hours to get them charged to 100% SOC.

 

Other than lithium, the only version of lead acid that claims to deal with this partial SOC operation is lead carbon which claims to be tolerant of not being fully recharged, and specifically sold for renewal energy storage where full recharge is not always possible. However, their cycle life is still impacted. Trojan are now offering lead carbon FLA versions for solar so the technology does appear to have some backing from a reputable deep cycle battery maker.

 

Trojan lead carbon 

 

The trouble is we all remember Elecsol and carbon, although from memory, that was a different type of carbon enhancement.

Edited by PeterF
Add Trojan link

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