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Re: [PSUBS-MAILIST] Lithium Iron Phosphate batteries



Hi Alan,

The battery specs cite a 2.8v nominal voltage so I'm curious why the web site states 3.2v.  Assuming 3.2v is correct, you would have to put 4 of these batteries in series to get a minimum of 12v at only 40 Ah.  Another eight batteries would be required to get enough current capacity to equal a 120Ah lead-acid, for a cost of $720 not including the hardware to bind the batteries together.  A lead-acid battery of the same specs is about $250.

Jon


On 6/3/2011 4:07 AM, Alan James wrote:
Hi,
Firstly, "Carsten don't eat the cucumbers".
Secondly, I was talking to a battery importer today, who is bringing in a load
of Chinese "Thunder Sky"  Lithium Iron Phosphate batteries. I googled them & came up with this
Oakland, California based dealer & thought the prices were looking good.
These are 3.2 volt & can be linked together to form whatever voltage, using their accessories.
They seem almost good enough to compete with lead acid batteries for best bang for your buck.
Regards Alan