Still fresh, damnit!
- Oct 6, 2008
- Somewhere off the coast of the EU
Most electric cars allow you to set a limit (such as 80%) when you're fast charging. I get the impression this doesn't apply when you're home and charging on the half-dozen* kilowats that comes down your one-phase ring main, but I'm not sure how much manual intervention is required in this situation.If it is not a generic charger (cheapest option), it would be interesting to be able to set a maximum charge capacity, because batteries charged to 100% downgrade, it is bad for battery. For example good electric cars only charge to 80% (when they say "100%" and stop charging they charge only to real like 80%; the same for discharge, it is best to stop discharging at 20%, as with this battery last a lot of time; of course, hot is also bad).
But I get the impression that you only need to be careful about overcharging a battery when you're using some super charging solution. When you're using plain old USB2 I'm not sure it matters so much if you go closer to full. Computer charge circuits also learn where 100% is based on use, and it's not the same as 100% of the battery's actual chemistry. You can get the Pandora's battery to go a few ticks above 100% when charging it ISTR.
* I hear talk of 7kW bandied about, but I make one 13amp 230/40 ring main to carry about 3kW so I'm not quite sure how these home boxes are connected. Maybe it's on a 30A cooker fuse? That seems about right.