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Old 10-26-2009, 03:53 PM   #1 (permalink)
ceege
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Join Date: Jun 2009
Location: tinkering in the desert
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Charging Question

Hello ecomodders!

I'm new and was wondering if I could get some advice on a project.

Project details:

Series Hybrid Tour Boat-
turbo r-12x jetski engine
warp9 motor
12-14 48V50A Lifepo4 batteries

The requirements for this boat is to run on the electric motor for the 4 hour downstream tour, and then use the gas engine to get back upstream in an hour. It has to make 2 consecutive tours.

The plan is to charge the batteries off the engine's alternator. Perhaps with a voltage booster in between the alternator and batteries.

This is where I need advice.
1) Does this sound remotely feasible?
2) I'm a bit hazy on my recharging fundamentals... is it correct that Voltage input needs to be higher than that of the battery pack it's charging, and Amperage is proportional to charging time up to a certain max amperage(3C)?
3) Anyone know where to find high quality, high output alternators?

Sorry for the list of questions, I've tried searching and haven't found the answers yet.

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