sandange wrote:Nice work guys
A couple of questions -- at -30c it indicates the battery warmer is off and car will not charge
Does this mean "IF the battery warmer is off" that the batteries will freeze and not charge
Why would the battery warmer be off- " due to depleted drive battery? & or not having been plugged in at those temperatures?
Does the battery warmer stop working at those temperatures?
I guess the easiest answer is that, according to the manual, at -30C, nothing works and you need to flatbed the car to somewhere warm.
The manual doesn't explain why nothing works below -30, but it indicates that the battery warmer kicks in when the car is plugged in to charge and the temperature is below -25C, and that it uses the car's heater, supplied by the EVSE, to bring the battery up to -20 before it shuts the heat off. I'm assuming from this that the battery wants to be above -20C, or about 0F to accept charge current.
As far as why the battery warmer won't work, I can't understand it either
Maybe it's that Mitsubishi figures the little ceramic heater isn't up to the task of bringing a relatively large thermal mass (the battery) up from a temp that low.
As with other things in the manual, the way it's WRITTEN may well not be exactly the way it works in PRACTICE-- something may have gotten lost in the translation!