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Recharging (rechargeable) lithium-ion batteries is — unfortunately — not a straight-forward process. Unless you cap current you will damage severely-discharged batteries during the initial charging phase. They react very poorly to being overcharged. Even small amounts of undervolting will translate to large amounts of capacity loss. Added to that, there ...


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Energy losses in a cable — due to resistance — are proportional to the current squared (I²). Thus if you double the current (by putting your panels in parallel) then you'll quadruple your losses ( (2I)² = 4I² ). When panels are connected in series, the voltages add up but the current remains constant. Thus to minimise line losses, connect panels in series....


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Let's take a look at resistance! With 220 volts, the resistance energy waste is R*(30 A)2. Charging power is 220 V * 30 A. So, resistance waste divided by charging power is R * (30 A) / (220 V). With 110 volts, the fraction is R * (15 A) / (110 V). Because 15 divided by 110 is the same as 30 divided by 220, if you are using the same cable, the power ...


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Reuse beats recycling. The active duty life span of an EV battery (cells and control electronics both) is hugely longer outside of an EV, so reclaiming lithium from them should be a last resort only at the point where no more economical uses for them exist. Thinking of the huge electric vehicle batteries as resources to recycle, once they no longer serve ...


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