Lithium-ion and solar panel life cycles?
With a lithium-ion battery is it better to run it down or keep solar plugged in? I have an Engel compressor refer/freezer that draws 36-37 watts when it runs..I also have a portable 100 watt solar ...
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Hi,
For greatest longevity Li doesn't like to be charged above 90% of full, nor discharged below 40%, especially for storage.
The deeper the discharge the fewer total cycles. Attempt to not go below 20%.
All the recommendations I find are charge to 90% before storage. Refresh the charge from time to time.
Do not store below -4 f (-20 c).
I'm going SiO2 instead. They can survive being discharged to stone bone dead 620 times. Of course, that is not recommended. They appear to be better than LI in every category except for weight. The SiO2 are similar weight to lead acid. They can be used and charged at -40.
This solar series in plain English may help: https://freecampsites.net/adding-solar/
For greatest longevity Li doesn't like to be charged above 90% of full, nor discharged below 40%, especially for storage.
The deeper the discharge the fewer total cycles. Attempt to not go below 20%.
All the recommendations I find are charge to 90% before storage. Refresh the charge from time to time.
Do not store below -4 f (-20 c).
I'm going SiO2 instead. They can survive being discharged to stone bone dead 620 times. Of course, that is not recommended. They appear to be better than LI in every category except for weight. The SiO2 are similar weight to lead acid. They can be used and charged at -40.
This solar series in plain English may help: https://freecampsites.net/adding-solar/
