Frozen batteries

[snipechief]

I like that little solar heater. I might look into those for my battery compartments on my motorhome. Kewl!

I have both batteries in the ammo can with a pet bed heater. Their warming up slowly as we speak.
I also put a remote digital inside/outside thermometer.

 

[snipechief]

Here's the setup

 

[Atavar]

Hmm, you might have just turned a possible fire in to a possible bomb.
I hope you don’t latch the lid.

 

[snipechief]

Hmm, you might have just turned a possible fire in to a possible bomb.
I hope you don’t latch the lid.

It's vented.

 

[studebakergringo]

before a charge i get vax to help the bike to stay safe

 

[Jager]

Your batteries should be fine.

Actually, for storage, cold temps are preferred for Lithium-chemistry batteries, as they then exhibit slower rates of calendar aging than when stored in warmer temps. What you don't want to ever do is attempt to use them while cold-soaked. Charging, especially, in those conditions may cause Lithium plating. And, unfortunately, the BMS' in most small Lithium-chemistry batteries - including ebikes - are pretty crude. I would not trust them to do an awful lot to protect the battery. Just make sure your battery doesn't fully discharge.

I keep the spare battery for my Lectric One out in my sounds-very-similar-to-yours shed, along with the one actually on the bike. My two Tesla's stay out in the cold, too (no garage).

Summertime temps in your shed are when you should worry. That and the fact that you're storing your bike at near full state of charge. When not using your bike, 50% SOC (46-47 volts on a 48v system) will degrade notably slower than a battery stored near 100%.

 

[snipechief]

1. The batteries are frozen in the heated shed.

?

 

[HumanPerson]

?

It was a bangladesh spammer testing the waters. It is gone now.

 

[Annieolnie]

It was a bangladesh spammer testing the waters. It is gone now.

Testing the ice, more like it. Thanks for keeping an eye out.

 

[snipechief]

?

 

[Annieolnie]

So, I just had a thought. If your battery pack has a usb port it might be able to take care of itself, or you could add a power bank. There are a whole host of small USB pet heating pads on Amazon. Most of them are 5v, 2 amps. I was thinking of how I lose range when it is bitter cold. I might put one of these inside my battery wrap. It is something to consider.

 

[snipechief]

Wish I had a USB port on the engwe.

 

[Hakaman99]

I have a Velotric Discover 2 and charge it inside, and only when I am home. Is there really much chance of problems ?