E-Biking on really hot days observations & a battery question
 

96 degrees F today on long Island having a heat wave, I'm really enjoying my rides & cooling off getting exercise still , great way to beat the heat without over doing it get into the wind ride by the water for cool breezes a great thing ..
But I wonder if my sun porch is too hot to charge up & keep the bike when it's so hot ?
It's about 98 in there now, batteries charging from my morning ride, should I remove it from the bike bring it to a cooler location in my house , basement,or even fridge after charge ?
Just what is too hot to store these lithium batteries ?
I thank any responses in advance ..:)
Alan

Don't put it in the fridge. It like the cold a lot worse then the heat. That being said I would recommend charging in a cooler location of the house. But always remember safety in your chose of location. Don't "leave it and forget it" and don't charge and leave the house or go to bed. Bb

Thanks for the reply, my battery is a bit fiddly to remove otherwise it would be more of a no brainer to just quickly remove it & bring it to the basement where it's much cooler to charge up. It gets to close to 100 degrees in my porch today's going to be a scorcher as well.
From more research anything over 95 degrees isnt good for these lithium packs.. Too hot, too cold NG it seems.

I have been thinking about this aswell. I noticed the new mipowerZ has a white battery. I am willing to bet that this is not just aesthetic. I replaced the wierd nut that came with the bike with a wing nut to facilitate easy battery removal. I suggest atleast getting some shade on the battery. I bring mine inside and shade it when outside.

Hot as a mother shucker today & looks like a few more still to come. What i did was set up a fan { pretty big jobbie ** & aimed it @ the sucker while charging. had all the windows open in the porch readings were 97 degrees F.
White bike/battery has to help while out & about on these days, I bet bike & battery was well over 100 degrees today when I was out & about making my stops @ the stores ect..
i'm just @ 5200 miles original battery 13 months use since new so I figure I'd roll the dice & leave it on the bike while charging..
I'm easily still getting 25 miles per charge , whats the ole sayong " she oews me nothing " @ this stage.:)

Might be of interest...
 

http://batteryuniversity.com/learn/a...w_temperatures

I will be ordering my first ebike Friday and have been doing some study because these batteries are expensive. :twitchy:

Lithium batteries generally store best at 40-50% charge in a cool place.

According to the info at BU (link above), after 85f and up the lithium batt will get a very slight hit to its life span.

Get a small fan, keep it all in the shade and your fine..

Could happen if your E-Biking in Death Valley , what was it over 130 degress F. this summer.
Could have a Lithium Nuclear explosion, LOL :D

Boeing's Dreamliner had the main Lithium battrey packs catch fire, I think they changed to NiMh's .
Now last week even the smaller lithium batteries in the emergency beacons are catching on fire, theyr'e still not sure if it's within the batteries cells or a short that started these to burn .
Heres the article.
http://www.dailymail.co.uk/news/arti...cy-beacon.html

There are several diff types of lithium batteries LiMN, Lipo, LiO4 etc... Some are much more stable than others. Lipo is the one that likes to catch fire. Unfortunately Lipo is also the best performance and lowest cost of them all. After reading the above article the boeing beacon is using LiMn. This is known to be a very safe chemistry. My ODK2 uses this chemistry. I suspect Boeing got a bunch of bad cells somehow. I have used my mipower out in the sun many times with its black battery in the south MS heat. So far no issues. I charge it inside or in the shade though. A white cloth could be used to shade it while out using the bike.

I think the real concern isnt fire or explosions on really hot days but it screws up chemistry, weakens the cell.
The latest heat wave has ended where i am it seems & bike is performing well except for the flat I got today had to walk 4 miles home pushing that 65 lb. thang. When you buy these things you have to factor in the exercise you get walking home with flats, I've got lucky couple times & have gotten flats 4-5 miles from home couple times too. I guess this a different thread , getting off topic.
That white towel is a good idea Zydeco, I feel like throwing in the white towel today &@ the friggin thing for other reasons :)

Here is the difference from a white box to a black box on a 26*C day, only in the sun for 1/2 HR about 25*C hotter for the black... http://bikeforums.net/attachment.php...hmentid=332538http://bikeforums.net/attachment.php...hmentid=332539

What are the tires you're using?

Kenda 838's
 

Kenda 838's, with regular tubes.
Last time was a wire brad type bent nail, about a month ago it was glass but thick jagged pc. that got me.
I want to try the Schwables but my wallet says no. Any suggestions, liners, thorn proof tubes. I run 26 x 195.

Oh & 350HTRR, pretty cool demonstration, quite a contrast.

Try the Schwalbe Big Apple tires with a Mr. Tuffy liners. You won't have any more problems. :thumb:

http://www.schwalbetires.com/bike_tires/e-bikesJust noticed they have special e-bike tire lne