diy solar

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    CHINS is Working Hard to Build a Brand

    I ordered a CHINS 12V 100 AH LiFePo4 battery, $375 with tax and shipping, about 10 days ago. On March 2, I was e-mailed a tracking link, which showed it picked up by UPS for shipping. There has been no further update to the status in the last week. I was getting concerned. Then today, I got an...
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    First Charge on a New LiFePo4 - Anything Special?

    I finally pulled the trigger and ordered a CHINS 12V 100 AH battery to replace my 73-pound FLA marine battery. I'll use it for emergency backup and camping with ham radio equipment and my CPAP. I know DIY batteries require cell-balancing before use. But on a pre-built battery from a...
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    BMS: A System's Weak Link?

    I'm designing an all-DC off-grid system to run 12-volt radio equipment at a remote, mountaintop site which will be inaccessible during winter months. I've tried to reason out the steps necessary to ensure it keeps running reliably. I don't really know enough about BMS to understand their...
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