Walter Racka wrote: I am trying to find out more about the Edison 240 batteries as I have an opportunity to buy 20 of them.
Eric Hanson wrote:I agree with your wife that Lithium-Ion batteries are not practical, pragmatic or cost-effective for an off-grid home. Lithium-ion batteries, despite all the hype, are really niche performers, excelling in applications that require high power and energy densities in a small, light package. These are just about perfect for laptop computers and power tools. They would be great for Electric Vehicles if it were not for their high cost and limited charge-discharge cycles. But a fixed application like a home requires neither a particularly high power or energy density. Old, heavy, reliable batteries will do just fine.
Perhaps the best type of battery for your particular application is the Lithium Iron Phosphate (LIPO) battery. These are a far cry from the better known Lithium Ion battery. LIPO batteries are pretty light, have medium power and energy density, can be fully discharged and have something like 10,000 charge-discharge cycles, making them a long-term battery. They are not cheap, but they are very reliable and don't have any of the stability (read as flammable and explosive) issues that Lithium-ion batteries do. Also, standard battery charging electronics generally work just fine with them.
Walter Racka wrote:Thanks All for the info. I'm not ready to commit to all the work that appears necessary to buy and bring these batteries back to life. Would love to do it but...I'm a newbie to all this and just want to get my feet wet not get in over my head. Thanks again, Walt
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