Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Electronics, Lighting, & Gadgets HRM, GPS, MP3, HID. Whether it's got an acronym or not, here's where you'll find discussions on all sorts of tools, toys and gadgets.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 09-12-07, 12:38 PM   #1
oboeguy
34x25 FTW!
Thread Starter
 
oboeguy's Avatar
 
Join Date: Sep 2004
Location: NYC
Bikes: Kona Jake, Scott CR1, Dahon SpeedPro
Posts: 6,013
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Lithium Ion batteries in cold weather?

They have a rep for poor performance, no? I'm thinking of picking up the new model of the NightRider MiNewt, which comes with a lithium ion battery pack (right?) but I'm concerned about performance in cold weather as, after all, most of my night riding (commuting) is during the cold winter months here in NYC.
oboeguy is offline   Reply With Quote
Old 09-12-07, 01:17 PM   #2
cyccommute 
Mad bike riding scientist
 
cyccommute's Avatar
 
Join Date: Nov 2004
Location: Denver, CO
Bikes: Some silver ones, a black one, a red one, an orange one and a couple of titanium ones
Posts: 18,064
Mentioned: 11 Post(s)
Tagged: 0 Thread(s)
Quoted: 231 Post(s)
Quote:
Originally Posted by oboeguy View Post
They have a rep for poor performance, no? I'm thinking of picking up the new model of the NightRider MiNewt, which comes with a lithium ion battery pack (right?) but I'm concerned about performance in cold weather as, after all, most of my night riding (commuting) is during the cold winter months here in NYC.
They'll probably do well enough unless you happen to move to Minnesota Keep your batteries (and light) inside during the day so that they are relatively warm when you head home. It takes a while for the battery to chill and the electrochemical reaction will generate some heat. If it's too cold, get a longer lead and put the light on your helmet (probably better anyway) and keep the battery next to your body...kinda the 'heater cat' approach 98F is plenty warm.
__________________
Stuart Black
New! Pokin' around the Poconos A cold ride around Lake Erie
New! Dinosaurs in Colorado A mountain bike guide to the Purgatory Canyon dinosaur trackway
Solo Without Pie. The search for pie in the Midwest.
Picking the Scablands. Washington and Oregon, 2005. Pie and spiders on the Columbia River!
Days of Wineless Roads. Bed and Breakfasting along the KATY
Twisting Down the Alley. Misadventures in tornado alley.
An Good Ol' Fashion Appalachian Butt Whoopin'.
cyccommute is offline   Reply With Quote
Old 09-12-07, 05:29 PM   #3
Cyclon
2 Wheel Junkie
 
Join Date: Sep 2004
Location: SoCal
Bikes:
Posts: 348
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Lithium ion batteries will last longer in the cold than NiMH will though.
Cyclon is offline   Reply With Quote
Old 09-12-07, 06:48 PM   #4
seeker333
__________
 
seeker333's Avatar
 
Join Date: Feb 2004
Bikes: yes!
Posts: 3,168
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 26 Post(s)
Quote:
Originally Posted by Cyclon View Post
Lithium ion batteries will last longer in the cold than NiMH will though.
True. Nimh will quit working when it get below freezing.

Plus the LI weighs much less. But you pay a premium for these benefits.
seeker333 is offline   Reply With Quote
Old 09-12-07, 07:18 PM   #5
Portis
Banned.
 
Join Date: Sep 2003
Location: Home alone
Bikes: Trek 4300 X 2. Trek 1000, Trek 6000
Posts: 6,019
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by seeker333 View Post
True. Nimh will quit working when it get below freezing.
BS. I use Nimh all the time below freezing. The only trouble i have EVER had was with my cell phone when it was -5 F, which happens to be 40 degrees below freezing.
Portis is offline   Reply With Quote
Old 09-12-07, 08:17 PM   #6
oboeguy
34x25 FTW!
Thread Starter
 
oboeguy's Avatar
 
Join Date: Sep 2004
Location: NYC
Bikes: Kona Jake, Scott CR1, Dahon SpeedPro
Posts: 6,013
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Sounds like I shouldn't worry. Thanks BF!
oboeguy is offline   Reply With Quote
Old 09-13-07, 08:59 AM   #7
cyccommute 
Mad bike riding scientist
 
cyccommute's Avatar
 
Join Date: Nov 2004
Location: Denver, CO
Bikes: Some silver ones, a black one, a red one, an orange one and a couple of titanium ones
Posts: 18,064
Mentioned: 11 Post(s)
Tagged: 0 Thread(s)
Quoted: 231 Post(s)
Quote:
Originally Posted by seeker333 View Post
True. Nimh will quit working when it get below freezing.

Plus the LI weighs much less. But you pay a premium for these benefits.
NiMH, Li-ion and SLA all have about the same temperature threshold... about -4F...NiCd will continue to operate down to -40F. Don't try to charge any of the batteries when they are cold. Let them warm (or cool) to room temp before putting them on the charger.
__________________
Stuart Black
New! Pokin' around the Poconos A cold ride around Lake Erie
New! Dinosaurs in Colorado A mountain bike guide to the Purgatory Canyon dinosaur trackway
Solo Without Pie. The search for pie in the Midwest.
Picking the Scablands. Washington and Oregon, 2005. Pie and spiders on the Columbia River!
Days of Wineless Roads. Bed and Breakfasting along the KATY
Twisting Down the Alley. Misadventures in tornado alley.
An Good Ol' Fashion Appalachian Butt Whoopin'.
cyccommute is offline   Reply With Quote
Old 09-13-07, 10:54 AM   #8
jeff-o
Recumbent Evangelist
 
Join Date: Mar 2005
Location: Kitchener, Ontario
Bikes: Rebel Cycles Trike, Trek 7500FX
Posts: 2,991
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I use a Li-Ion pack from Batteryspace.com for my lights. The pack was fine even at the lowest temperatures, -20C or so. I brought the pack inside only when it needed a charge, otherwise it stayed in the unheated garage.
jeff-o is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 09:00 AM.