Li batteries at 48vdc
After much deliberation and questions, I'll likely be purchasing the 48v Lithium battery pack instead of 4-12v. I liked the idea of 12v batteries for weight and ease of handling, but the possible cel...
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I may have confused some of you by inserting my 12 volt 400 Ah system info.
Mex- The max charge rate for my 12 volt bank is 400 amps till 75% charged then reduce to 200 Amps. This is 4 100 AH batteries in parallel. As you might guess I will never have to worry about exceeding the max charge rate.
Per the tech I spoke, with for my batteries,limit charge voltage to 14.4 or less and if floating is needed set that at 13.4 volts, but avoid floating if possible.
LFP Batteries should not be stored fully charged. It is recommended that they be discharged to 50% + or - 10% for long term storage.
AND NEVER attempt to charge them if they are below 32 deg F (0 deg C). But you can take power from them in freezing conditions without damage.
I finally figured out how to save higher res charts so the next one should be easier to read.
Mex- The max charge rate for my 12 volt bank is 400 amps till 75% charged then reduce to 200 Amps. This is 4 100 AH batteries in parallel. As you might guess I will never have to worry about exceeding the max charge rate.
Per the tech I spoke, with for my batteries,limit charge voltage to 14.4 or less and if floating is needed set that at 13.4 volts, but avoid floating if possible.
LFP Batteries should not be stored fully charged. It is recommended that they be discharged to 50% + or - 10% for long term storage.
AND NEVER attempt to charge them if they are below 32 deg F (0 deg C). But you can take power from them in freezing conditions without damage.
I finally figured out how to save higher res charts so the next one should be easier to read.
