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Re: Charge Controllers
PWM controllers * are much cheaper than MPPT. * Also, they have lower internal losses (usually better for smaller/low power systems, typically smaller than 400 Watts). * You must "match" so…2 · -
Re: Solar PCU
Unless somebody is trying for 100% solar. My suggestion for backup power is pretty much a fuel driven genset (natural gas, stored fuel of some sort, etc.). The "UPS" has a battery bank only…1 · -
Re: Sort of new at this and looking for advice/help
You can charge directly from solar panels--Use a resistor to limit current to typically 10% or less of the battery's AH rating. Note that this can be be vary dangerous for many Li Ion chemistry …1 · -
Re: Low (& high) Voltage wire question
What is the Vmp/Imp of the solar panels, and how do you have them wired (series, parallel, series-parallel)? What kind of solar charge controller do you have? Many "24 volt panels" have Vmp…1 · -
Re: Sort of new at this and looking for advice/help
In general, for off grid system, we recommend 1-3 days of storage with 2 days "nominal" and 50% maximum discharge for loads. For example, if you want 9 hours per night at 0.5 amps: * 9 hour…1 ·
