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Are the boards end user programmable or readable? One of the things that fascinated me about the Nissan Skyline GT and cars with OBDII was the ability to plugin a laptop and get realtime data from the ECU, program the valve timings, and in the case of the Skyline get the brake, Antislip, and g-forces data. Is this type of information available to the owners?

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That's a good question. Everything eventually connects in to the ECU, so there's no reason the customer shouldn't be able to read this data. As for writing data, I'm not sure how difficult it would be, but it can probably be done.

Personally, I'd leave battery controls to people smarter than me. Consider that the battery costs around $8,000, and that severe over- or under-charging is a massive hazard to both the battery's lifespan and the driver's life.

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