A common knowledge and practice on lithium-ion batteries is that they significantly loose the capacity and cannot be charged when their temperature drops below 0 deg of Celsius due to increased degradation (lithium plating). I'd like to charge the 1.2Ah lithium-ion battery from a solar panel but in winter season (sometines minus 25 deg C) some pre-heating would be required.
The lithium-ion batteries heat up when loaded and I wonder if this phenomena can be smartly used. Is this a common practice? Are there any ICs or known circuits that would control this process? What other options do I have except for using a lead-acid battery?
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