Is it worth it to use a down tube insulation in the winter to protect the battery from 20-40 degree temperatures? Or colder?

mtnbikerva1

Member
Mar 19, 2022
32
9
Mid-Atlantic
Wondering if it actually does any good to buy or make a neoprene cover for the down tube/battery for the winter temperatures and charge longevity and battery longevity longevity.
Thank you.
 

Bones

E*POWAH Elite
Subscriber
Apr 3, 2020
913
1,228
Harrogate
I use one that a mate gave me. Not so much for the battery but more as a frame protector and it's easy to undo and get rid of all the mud.
it's quite a handy thing to have on the bike.
I doubt that you manage to keep the battery warm but keeping a bit of wind chill off it can't do any harm .
 

Bones

E*POWAH Elite
Subscriber
Apr 3, 2020
913
1,228
Harrogate
This is mine. I think it's from eBay and I use it during the winter months

PXL_20231125_130944798.jpg
 

mtnbikerva1

Member
Mar 19, 2022
32
9
Mid-Atlantic
Is there any difference between having 30f temperature wind moving at 60-80mph vs stationary for a hour or 10hrs vs riding in 30f temperature?
 

F4Flyer

Member
Sep 30, 2020
113
54
Denver
Wind chill will not lower temps for inanimate objects to below the ambient air temperature. A cover may protect from spray and chemicals on the road but your battery will stay at air temperature. Wind chill affects humans and animals.
 

Hattori-Hanzo

Well-known member
Apr 10, 2023
428
568
UK
Any idea what you'd call that @Bones ?

Looks like just what I'm after. I use velcro straps around my battery which means the rubber cover doesn't seal 100% and I'm concerned water will easily get in, a similar cover to yours should sort that out.
 

Bones

E*POWAH Elite
Subscriber
Apr 3, 2020
913
1,228
Harrogate
Any idea what you'd call that @Bones ?

Looks like just what I'm after. I use velcro straps around my battery which means the rubber cover doesn't seal 100% and I'm concerned water will easily get in, a similar cover to yours should sort that out.
Sorry no . I've had this for a couple of years now and the only small tag on it says xlg.
I have managed to get the Bosch 500 battery to fit in the frame and like you I use a large velcro strap and this cover does a great job of keeping it fairly watertight.
 

Tooks

Well-known member
Subscriber
Mar 29, 2020
492
580
Lincs UK
Any idea what you'd call that @Bones ?

Looks like just what I'm after. I use velcro straps around my battery which means the rubber cover doesn't seal 100% and I'm concerned water will easily get in, a similar cover to yours should sort that out.
Amazon seem to have a number of neoprene downtube covers, perhaps start from here and find one the right size?

E-bike Cover for Battery Protective Universal 28-34 cm (11-13.5inch) Circumference Bicycle Neoprene Cover Waterproof Protection eBike Accessories https://amzn.eu/d/2cGmDxR
 

trekjohn

New Member
Dec 5, 2024
3
1
Leeds UK
Wondering if it actually does any good to buy or make a neoprene cover for the down tube/battery for the winter temperatures and charge longevity and battery longevity longevity.
Thank you.
Got one from Amazon. Don't know if it helps but the theory is good. It collects the mud and had to be washed after a wet ride. Be better if it had a smooth waterproof outer
 

irie

E*POWAH Elite World Champion
Subscriber
May 2, 2022
2,751
2,825
Chichester, W.Sussex, UK
Got one from Amazon. Don't know if it helps but the theory is good. It collects the mud and had to be washed after a wet ride. Be better if it had a smooth waterproof outer
Neoprene is waterproof (not porous) so I think what you have is not made of neoprene.
 

Eliadn

Member
Jul 25, 2022
104
57
Croatia
I doubt there are benefits of having a cover to keep the battery warm. Especially with aluminium frames as they are just a huge thermal bridge.
 

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