As we drive, the battery temperature increases.
When we slow charge, the battery temperature increases.
When we Quick Charge, the battery temperature really increases.
Thus, as we travel long distances, stopping only to charge the batteries, the battery temperature does nothing but increase continuously.
When I took my Christmas Day 200-mile trip last year, the battery temperature was IIRC over 30degC (86degF) on the final climb into the Sierra foothills, despite the ambient temperature at zero degC (32degF).
From a different thread,
This may be the most significant reason that may keep us from making long-distance trips with the i-MiEV. Does anyone have any long-distance CaniOn readings they can share?
The good news is that the motor, controller, and charger are liquid-cooled, with a nice radiator out front.
When we slow charge, the battery temperature increases.
When we Quick Charge, the battery temperature really increases.
Thus, as we travel long distances, stopping only to charge the batteries, the battery temperature does nothing but increase continuously.
When I took my Christmas Day 200-mile trip last year, the battery temperature was IIRC over 30degC (86degF) on the final climb into the Sierra foothills, despite the ambient temperature at zero degC (32degF).
From a different thread,
I have been mulling this issue ever since I took my first long-distance CHAdeMO trip last Christmas. The i-MiEV does not have a battery temperature readout, and thus the only way to get that temperature is with CaniOn (and OVMS?).Malm said:Have you any idea what where the temperatures in the battery in the end? The i-MiEV wasn´t made to do such long trips. Yes we can do it, but we will pay a price, specially if we drive it fast, in long trips, without letting the battery temperatures going back down. When you drive they are getting hot, when you are charging they are getting hot, so if we are using it, day by day, without letting the temperatures going down, we will loss more then 10% in an year. But yes, some of us have some solutions to that, and we can even make temperatures going down when driving, with the cold air of the air conditioner going to the battery, losing something like 10% in range (that´s my choice in this summer days, don´t want to see more then 30º C in my battery no more - OK, they can be there, but not for several hours).rkarl89203 said:…246 miles!… Yowza!…I love my Imiev!
This may be the most significant reason that may keep us from making long-distance trips with the i-MiEV. Does anyone have any long-distance CaniOn readings they can share?
The good news is that the motor, controller, and charger are liquid-cooled, with a nice radiator out front.