adding Enginer PHEV system
The Prius enginer Kit is fundamentally a OEM battery charging system. It grid charges the LeFiPO4 batteries to a output of 48VDC@40AH, then thru a DC/DC (constant voltage current limiting device) discharges the LeFiPO4 batteries into the OEM battery. There is no direct OEM battery to PHEV battery connection. The LeFiPO4 batteries deplete at constant rate until empty. The output voltage of the DC/DC converter is 240VDC at 12A (approx 3000W). I have some concern that the LeFiPO4 batteries with a 2KW charge could potentially overcharge the OEM battery. One must keep a keen eye on the state of charge on the OEM battery when discharging from the LeFiPO4 at a constant voltage of 240V. The Prius battery full charged voltage should be in the neighborhood of 235 VDC. Thought I might add these comments, they are based on my review of the very limited info on his Kit. I own a Prius and a Insight.
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