Batteries vs Cold ☃

General Discussion about electric vehicles.
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changeissimple
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Re: Batteries vs Cold ☃

Post by changeissimple » Dec 06, 2017 5:43 pm

I have been riding in 40F temperatures and am a bit new to the E-Bike scene. I have seen a performance dip on the battery at that temp- I am not worried about the performance . However I am worried about hurting the battery long term. Will charging and riding in these temps (40F) hurt or degrade the battery and the life of the battery?

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DrkAngel
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Re: Batteries vs Cold ☃

Post by DrkAngel » Dec 09, 2017 8:06 am

No definite answer on damaging, by discharging battery when cold ... but definite suppressed battery performance!
Charging when cold is detrimental!

Allow to warm near room temperature, then charge.

Put warm battery on bike for good initial performance.
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changeissimple
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Re: Batteries vs Cold ☃

Post by changeissimple » Dec 12, 2017 12:43 pm

I put my bike in the basement for the winter just last week because of the snow and ice here in Boston. Wondering if anyone has a recommendation for maintaining the battery until spring. It is a 48v 26.1ah panasonic 13650 lithium ion pack. I have a 4amp charger. Should I charge it once a week, one a month? should I run the motor and drain the battery periodically? I'd love help on this issue. Maybe there is thread on maintaining the battery for a few months - love some help/recommendations.

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tomjasz
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Re: Batteries vs Cold ☃

Post by tomjasz » Dec 12, 2017 12:49 pm

changeissimple wrote:
Dec 12, 2017 12:43 pm
I put my bike in the basement for the winter just last week because of the snow and ice here in Boston. Wondering if anyone has a recommendation for maintaining the battery until spring. It is a 48v 26.1ah panasonic 13650 lithium ion pack. I have a 4amp charger. Should I charge it once a week, one a month? should I run the motor and drain the battery periodically? I'd love help on this issue. Maybe there is thread on maintaining the battery for a few months - love some help/recommendations.
Best stored at refrigerator, NOT fewer temps. Best I can do is 55F. Store at 50% charge. 46.8V.
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Thanks Justin_le we're here thanks to you. All the best to the mods for their tireless work keeping it on an even keel.

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tomjasz
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Re: Batteries vs Cold ☃

Post by tomjasz » Dec 12, 2017 12:52 pm

Here's the complete chart.
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Thanks Justin_le we're here thanks to you. All the best to the mods for their tireless work keeping it on an even keel.

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