Ebike battery storage

[ronaldsauve]

Leaving the battery in an unheated garage in styrofoam containers will not keep it warm. Insulation only keeps things warm when there is a source of heat that is producing at least as much heat as the insulation is allowing to pass through it.

 

[Train Dan]

The advice to electric car owners is to not recharge in your garage. I've seen nothing about just parking in your garage.
I've taken the same attitude with my bike battery.
Now, full disclosure, I don't own an electric car.
Dan

 

[Snoop]

Time for another monthly battery charge check today.

Still in the “blue” (80-100%). Haven’t had to recharge yet.

 

[Snoop]

I plugged it into my bike to get a console reading, which was 75% charge, so pretty close to the charger indicator.

 

[Train Dan]

The maple sap is running here, and I'd like to be back on the bike sometime soon.
Better check MY battery.
Dan

 

[Rockbike]

The advice to electric car owners is to not recharge in your garage. I've seen nothing about just parking in your garage.
I've taken the same attitude with my bike battery.
Now, full disclosure, I don't own an electric car.
Dan

Everyone I know charges their EV's in their garage. The exception would be if your EV has been recalled for fire danger which is the case with a Chevy Bolt. I would avoid EV's with pouch-type batteries in favor of cylindrical ones. Statistically, gasoline powered cars go up in flames at a rate around 9-12 times as often (per mile travelled) compared to gas cars. There are a few gas cars in recent years that were recalled for fire danger and owners advised not to park within so many feet of a building or another vehicle.

 

[Rockbike]

I think best practice is to store at 60-70% and in warmer room for the battery.

Batteries store best in a cold room, as long as they are kept above freezing. The cold slows down self-discharge and other undesirable residual chemical reactions. A battery in cold storage around 40 degrees F and charged to somewhere around 50% will barely degrade at all, even over a year or more. Give cold batteries plenty of time to warm up to 70 degrees before charging them though. It can take quite a while for the internals to warm up, at least several hours in most cases.

 

[Snoop]

Time for another monthly charge check:

Still in the “Blue!”

I admit I’m kind of impressed with how well the battery is holding up its charge. Another month or so, and hopefully it will be back in seasonal daily use.