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Old 07-06-2009, 12:37 AM   #144 (permalink)
orange4boy
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Join Date: Aug 2008
Location: Vancouver BC
Posts: 1,124

The Golden Egg - '93 Previa DX
90 day: 31.91 mpg (US)

Chewie - '03 Prius
90 day: 57 mpg (US)
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I charge wherever I can by plugging in. I have a collection of chargers now and a collection of deep cycle batteries (for my electric motorcycles) so I load as many as I need for a trip. I got one pair for $49 each at Costco in September when they clear out their seasonal batteries.

Quote:
So, if you use the alternator switch to shunt out the alternator while you're driving and then turn it on, as it were, while you are coasting, would that let this work with the stock battery?
Your idea of shutting off the alternator except in "regen" is a good one but tricky to implement, I would think. You would not get enough juice in regen to charge the battery but it would help the range a bit.

I calculated that the a $100 deep cycle battery would easily pay for itself in one year based on a 10% increase in mileage in my case. I'm getting more than 10% better MPG
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