Hi Oldtami...
Thank you for your comments. Where did you get the 50/50 petrol/electric usage figure from? (hopefully not from my website)
That figure would be correct for the standard Prius. My conversion now would be more like 25/75 petrol/electric.
I worked out that even with a total conversion cost of around $7,000 (including 76 LiFePO4 cells) the payback would be around 270,000Km.
In the meantime I am enjoying a very quiet driving experience for most of the time... and less trips to the smelly old petrol station.
Eric
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