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 11-06-07, 11:06 AM   #1
KingTermite 
On my TARDIScycle!
Thread Starter
 
KingTermite's Avatar
 
Join Date: Jun 2005
Location: Eastside Seattlite Termite Mound
Bikes: Trek 520, Trek Navigator 300, Peugeot Versailles PE10DE
Posts: 3,924
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Post Best Rechargeable Batteries??

OK....it's time to get some new rechargeable batteries. The new lighting I got is getting low (from original batteries that they came with). I pulled out my OLD Radio Shack rechargeable batteries and charger from about 8-10 years ago (probably hasn't been used in 4 years or more). It didn't even work.

So my question is this:

When looking for rechargeable batteries, are there any other things to consider besides milliamp-hours? Should I get get the highest rated ones of the type (AA and AAA) I can find? Or are there other things to consider?

NiCad? NiMH? Li-Ion (do they do standard battery sizes)?


--------------- Edit ---------------------

Additionally, is there a good charger you can recommend? It seems I'll need a new charger.

--------------- Edit ---------------------
__________________
Quote:
Originally Posted by coffeecake View Post
- it's pretty well established that Hitler was an *******.

Last edited by KingTermite; 11-06-07 at 01:03 PM.
KingTermite is offline   Reply With Quote
Old 11-06-07, 12:17 PM   #2
jsharr
You Know!? For Kids!
 
jsharr's Avatar
 
Join Date: Apr 2005
Location: Just NW of Richardson Bike Mart
Bikes: '05 Trek 1200 / '90 Trek 8000 / '? Falcon Europa
Posts: 6,157
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
KT: not bike light related, but here is a pretty good review of AA batteries as they relate to digicams.

http://www.imaging-resource.com/ACCS/BATTS/BATTS.HTM
__________________
Are you a registered member? Why not? Click here to register. It's free and only takes 27 seconds! Help out the forums, abide by our community guidelines.
Quote:
Originally Posted by colorider View Post
Phobias are for irrational fears. Fear of junk ripping badgers is perfectly rational. Those things are nasty.
jsharr is offline   Reply With Quote
Old 11-06-07, 12:42 PM   #3
veganboyjosh
Senior Member
 
Join Date: Sep 2007
Bikes:
Posts: 195
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
veganboyjosh is offline   Reply With Quote
Old 11-06-07, 12:58 PM   #4
dekindy
Senior Member
 
Join Date: Jul 2006
Bikes:
Posts: 2,417
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
The newest concept is the rechargeable hybrid. They come charged and ready to go so they do not require an initial charge. They also retain their charge better. Claimed loss when not in use is 20% over 6 months instead of historical 60% over the same time period. I am considering using them in my rear lights. Ray-o-vac has them and I am not sure who else. Go to rayovac.com and read about them. They can be used in any charger. I have a Rayovac PS3 charger and rechargeable batteries that were given to me and have worked well. I have not personally tried them yet.
dekindy is offline   Reply With Quote
Old 11-06-07, 01:11 PM   #5
diesel_dad 
Senior Member
 
diesel_dad's Avatar
 
Join Date: Apr 2007
Location: Victoria, BC
Bikes: Bridgestone MB-5, Rocky Mountain Oxygen Race, Surly LHT, Specialized Roubaix Expert, Marinoni Sportivo, Steelwool Tweed
Posts: 248
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Hi,
Here is the definitive comparison of AA NiMH batteries:

NiMH Battery Shootout

As for a charger, I would recommend Maha C-9000 from Thomas Distributing.
diesel_dad is offline   Reply With Quote
Old 11-06-07, 01:26 PM   #6
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)
Quote:
Originally Posted by diesel_dad View Post
Hi,
Here is the definitive comparison of AA NiMH batteries:

NiMH Battery Shootout

As for a charger, I would recommend Maha C-9000 from Thomas Distributing.
I've heard great things about this charger as well. It even comes with batteries!
jeff-o is offline   Reply With Quote
Old 11-06-07, 01:45 PM   #7
curveship
wavylines
 
Join Date: Feb 2005
Location: Bull City
Bikes:
Posts: 541
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by diesel_dad View Post
Hi,
Here is the definitive comparison of AA NiMH batteries:

NiMH Battery Shootout

As for a charger, I would recommend Maha C-9000 from Thomas Distributing.
Nearly as good at half the cost is the La Crosse BC-900. The C-9000 is the macdaddy, but a little cumbersome in the UI.

I like Sanyo or Eneloop cells.
curveship is offline   Reply With Quote
Old 11-06-07, 01:54 PM   #8
KingTermite 
On my TARDIScycle!
Thread Starter
 
KingTermite's Avatar
 
Join Date: Jun 2005
Location: Eastside Seattlite Termite Mound
Bikes: Trek 520, Trek Navigator 300, Peugeot Versailles PE10DE
Posts: 3,924
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by diesel_dad View Post
As for a charger, I would recommend Maha C-9000 from Thomas Distributing.
Max charging current is 2000 mA. Does that mean it would not fully charge 2500mAh or 2700mAh batteries?


Quote:
Originally Posted by jeff-o View Post
I've heard great things about this charger as well. It even comes with batteries!
Same as above almost. It shows capacity of 2500mAh. Would it not fully charge the 2600 and 2700 mAh batteries?
__________________
Quote:
Originally Posted by coffeecake View Post
- it's pretty well established that Hitler was an *******.
KingTermite is offline   Reply With Quote
Old 11-06-07, 01:57 PM   #9
paulrad9
urban biker
 
Join Date: Feb 2006
Location: Twin Cities, MN
Bikes: Haro MTB for commuting and a LHT for everything else.
Posts: 205
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by dekindy View Post
The newest concept is the rechargeable hybrid. They come charged and ready to go so they do not require an initial charge. They also retain their charge better. Claimed loss when not in use is 20% over 6 months instead of historical 60% over the same time period. I am considering using them in my rear lights. Ray-o-vac has them and I am not sure who else. Go to rayovac.com and read about them. They can be used in any charger. I have a Rayovac PS3 charger and rechargeable batteries that were given to me and have worked well. I have not personally tried them yet.
With any technology, you have to ask, "what do you want to do". Slow discharge cells are great if the device sits idle more often than it's used, which may apply to a blinky which is used a few times a month. On the other hand, slow discharge cells don't seem to have the same capacity of regular NiMHs, so for a camera or other device which is used regularly and deplete the cells on only a few uses, regular NiMHs are the better option. Put another way:
Regular NiMHs: higher capacity but substantial self-discharge. Great for cameras or a headlight which you would charge at least 2x/month
Slow Discharege: lower capacity (maybe as much as 20-30% less) but little to no self-discharge. Great for blinkies and low power lights which you would normally replace after x months or so
paulrad9 is offline   Reply With Quote
Old 11-06-07, 02:00 PM   #10
paulrad9
urban biker
 
Join Date: Feb 2006
Location: Twin Cities, MN
Bikes: Haro MTB for commuting and a LHT for everything else.
Posts: 205
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by KingTermite View Post
Max charging current is 2000 mA. Does that mean it would not fully charge 2500mAh or 2700mAh batteries?



Same as above almost. It shows capacity of 2500mAh. Would it not fully charge the 2600 and 2700 mAh batteries?
The h in mAh is hours, so it can only charge that much capacity per hour. Using that 2,000mah charging current, it can charge a 6,000mah battery in about three hours
paulrad9 is offline   Reply With Quote
Old 11-06-07, 02:03 PM   #11
KingTermite 
On my TARDIScycle!
Thread Starter
 
KingTermite's Avatar
 
Join Date: Jun 2005
Location: Eastside Seattlite Termite Mound
Bikes: Trek 520, Trek Navigator 300, Peugeot Versailles PE10DE
Posts: 3,924
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by paulrad9 View Post
The h in mAh is hours, so it can only charge that much capacity per hour. Using that 2,000mah charging current, it can charge a 6,000mah battery in about three hours
OK....I knew it was for hours, but I wasn't sure if that was just a capacity or whether the rate was associated with the charging too.

Thanks for the explanation.
__________________
Quote:
Originally Posted by coffeecake View Post
- it's pretty well established that Hitler was an *******.
KingTermite is offline   Reply With Quote
Old 11-06-07, 02:08 PM   #12
chtorr
Senior Member
 
chtorr's Avatar
 
Join Date: Mar 2006
Location: Illinois
Bikes:
Posts: 75
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by paulrad9 View Post
With any technology, you have to ask, "what do you want to do". Slow discharge cells are great if the device sits idle more often than it's used, which may apply to a blinky which is used a few times a month. On the other hand, slow discharge cells don't seem to have the same capacity of regular NiMHs, so for a camera or other device which is used regularly and deplete the cells on only a few uses, regular NiMHs are the better option. Put another way:
Regular NiMHs: higher capacity but substantial self-discharge. Great for cameras or a headlight which you would charge at least 2x/month
Slow Discharege: lower capacity (maybe as much as 20-30% less) but little to no self-discharge. Great for blinkies and low power lights which you would normally replace after x months or so

That's exactly what I'm doing. I have the Rayovac Hybrids in my tail lights. The AAs are rated at 2100 and the AAAs are, I believe, rated at 800. For my headlights, which eat batteries much faster, I have 2650 Duracells. They self-discharge pretty fast, but that's not much of a factor when I have to recharge them at least after every other night ride.
chtorr is offline   Reply With Quote
Old 11-06-07, 02:17 PM   #13
flipped4bikes
ROM 6:23
 
flipped4bikes's Avatar
 
Join Date: Feb 2006
Location: Coastal Maine
Bikes: Specialized Tricross Comp, Lemond Tourmalet, Bridgestone MB-5
Posts: 1,713
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
+1 on the La Crosse BC-900. Refreshed my 3 year old Energizer 2300 maH NIMHs nicely. Also comes with C- and D-size adapters. Rechargeable hybrids are nice for their ability to retain charge long term, good for devices sitting around unused for awhile, like digital cameras. Currently limited to 2000 maH and more expensive than regular NIMHs.
flipped4bikes is offline   Reply With Quote
Old 11-06-07, 02:28 PM   #14
Accordion
Senior Member
 
Join Date: Oct 2007
Location: Orange County - SoCal
Bikes: 2011 Cannondale CAAD10
Posts: 1,476
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Get the Sanyo Eneloops. If you look at the reviews on Amazon you'll see tons of reviews of people that are extremely dissatisfied with their 2650mA Duracells, Energizer, etc. NiMh batteries. The 2000mA Eneloops are universally liked.

I like all the scientific reviews as much as the next guy, but a lot of the time I go to Amazon and read what 300 people just like me thought of their experience. A lot of them complained that the 2500-2650 new batteries lost their charge in three DAYS of non-use! They kept talking about a "bad batch" etc. I didn't want any part of that.

All I know is that I can ride for two hours a night with my NiMh Eneloops and I can carry four as spares without worrying about them losing their charge.

Good Luck!
Accordion is offline   Reply With Quote
Old 11-06-07, 02:44 PM   #15
flipped4bikes
ROM 6:23
 
flipped4bikes's Avatar
 
Join Date: Feb 2006
Location: Coastal Maine
Bikes: Specialized Tricross Comp, Lemond Tourmalet, Bridgestone MB-5
Posts: 1,713
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I forgot to mention that the Energizer chargers suck. Buy a Maha or La Crosse charger, and they will maximize the performance of your batteries, Energizer, Eneloops, or otherwise.
flipped4bikes is offline   Reply With Quote
Old 11-06-07, 04:58 PM   #16
diesel_dad 
Senior Member
 
diesel_dad's Avatar
 
Join Date: Apr 2007
Location: Victoria, BC
Bikes: Bridgestone MB-5, Rocky Mountain Oxygen Race, Surly LHT, Specialized Roubaix Expert, Marinoni Sportivo, Steelwool Tweed
Posts: 248
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by KingTermite View Post
Max charging current is 2000 mA. Does that mean it would not fully charge 2500mAh or 2700mAh batteries?
It will charge up to 20,000 mah. The charging rate is up to 2000 ma. The recommended charge rate is between 0.5C and 1.0C -- which means that you would charge a 2700 mah battery at somewhere between 1400 and 2000 ma with a Maha. My preference is a lower rate since it seems to get a full charge.
diesel_dad is offline   Reply With Quote
Old 11-06-07, 05:03 PM   #17
diesel_dad 
Senior Member
 
diesel_dad's Avatar
 
Join Date: Apr 2007
Location: Victoria, BC
Bikes: Bridgestone MB-5, Rocky Mountain Oxygen Race, Surly LHT, Specialized Roubaix Expert, Marinoni Sportivo, Steelwool Tweed
Posts: 248
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by curveship View Post
I like Sanyo or Eneloop cells.
Eneloops seem great but they do have less capacity than other cells. If you are going to use them frequently, then other cells are fine. If they will sit for a long time or be used infrequently, then low discharge batteries like Eneloops are great.
diesel_dad is offline   Reply With Quote
Old 11-06-07, 05:33 PM   #18
socalrider
Senior Member
 
socalrider's Avatar
 
Join Date: Mar 2004
Location: Upland, CA
Bikes: Litespeed Liege, Motorola Team Issue Eddy Mercxk, Surly Crosscheck Cyclocross bike, Fisher Supercaliber Mtn. Bike
Posts: 5,002
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I have found the Duracell 2650's to be rock solid.. I have had mixed results with the energizers..
socalrider is offline   Reply With Quote
Old 11-06-07, 06:24 PM   #19
diff_lock2
Senior_Member2
 
diff_lock2's Avatar
 
Join Date: Apr 2006
Location: Finlando NOT: Orlando, Fl
Bikes: Beater + Nishiki Bigfoot X-29
Posts: 1,694
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I think Rc grade stuff is great. Get a sub c pack, they can really handle large current draws. Same for the charger, Rc grade stuff, programable, and everything. Ultimatly though li tech is what you should get if you can. Edit: looks like you only want aa's.
diff_lock2 is offline   Reply With Quote
Old 11-06-07, 07:16 PM   #20
curveship
wavylines
 
Join Date: Feb 2005
Location: Bull City
Bikes:
Posts: 541
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by paulrad9 View Post
With any technology, you have to ask, "what do you want to do". Slow discharge cells are great if the device sits idle more often than it's used, which may apply to a blinky which is used a few times a month. On the other hand, slow discharge cells don't seem to have the same capacity of regular NiMHs, so for a camera or other device which is used regularly and deplete the cells on only a few uses, regular NiMHs are the better option. Put another way:
Regular NiMHs: higher capacity but substantial self-discharge. Great for cameras or a headlight which you would charge at least 2x/month
Slow Discharege: lower capacity (maybe as much as 20-30% less) but little to no self-discharge. Great for blinkies and low power lights which you would normally replace after x months or so
That's a really good point, but I have to say, I think the LSD (low self-discharge) batteries are better even in the two cases you mention, headlights and cameras. Especially in cameras. I get ~200 shots out of 2xAAs in my digital camera, which takes me about 3 months. Except that regular NiMHs self-discharge in a month or less. So the LSDs give me 3 times the life before recharging. For headlights, I get about 2h20 out of a set of 2000mAh Eneloops, verses 3h10 from regular 2600mAh NiMHs. But all my rides are in the 1h30-2h range, so I don't need the extra duration. And the LSD batteries have a greater chance of not going completely dead and refusing to take a charge after they sit idle all summer, when I'm not night riding.
curveship is offline   Reply With Quote
Old 11-06-07, 08:31 PM   #21
freako
Banned
 
Join Date: Feb 2006
Bikes:
Posts: 498
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
There we go, two different tests with two different results for each battery brand. This proved my fears that one of two things is going on, either the same brand batteries with the same amh rating were made slightly different from each other by factory error or inconsistency, or one set of test batteries sat in a warehouse longer then another set.
freako is offline   Reply With Quote
Old 11-06-07, 08:38 PM   #22
rm -rf
don't try this at home.
 
rm -rf's Avatar
 
Join Date: Jan 2006
Location: N. KY
Bikes:
Posts: 3,617
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 27 Post(s)
Quote:
Originally Posted by socalrider View Post
I have found the Duracell 2650's to be rock solid.. I have had mixed results with the energizers..
This has worked for me so far:
4 Duracell 2650 $10.99
Energizer CHDC7 mini charger $10.49

Maybe a fancier charger would top off the Duracells for a bit longer run time. But I got over 3 hours run time on my Dinotte 200L with this setup. It takes 6-7 hours to recharge, so it works overnight.

I may get a set of Eneloops to carry as a spare battery pack, since I'll rarely use it, and the Eleloops will hold their charge for weeks or months.

Last edited by rm -rf; 11-06-07 at 08:45 PM.
rm -rf is online now   Reply With Quote
Old 11-06-07, 08:56 PM   #23
edzo
Senior Member
 
Join Date: Feb 2006
Bikes:
Posts: 1,564
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I have energizer 2650mah batteries that were absolute crap in a digicam (they died fast, didn't last much when not in use) but they last forever powering my dinotte 140l taillight (I get the expected runtimes easily)

so....some batteries are better in certain devices I reckon. I use an energizer charger with them that can sense delta
edzo is offline   Reply With Quote
Old 11-07-07, 07:09 AM   #24
flipped4bikes
ROM 6:23
 
flipped4bikes's Avatar
 
Join Date: Feb 2006
Location: Coastal Maine
Bikes: Specialized Tricross Comp, Lemond Tourmalet, Bridgestone MB-5
Posts: 1,713
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
My Energizer NIMHs are very much like the bunny in my Nikon flash, they keep going and going. I popped them in my new Canon PowerShot and they would barely last ten shots. I got a La Crosse charger and now they work great in the Canon also!

Last night I put them in my La Crosse charger after running them through a discharge refresh. Charging them at 200 maH, 3 of them took a charge of 300 maH, the fourth up to 700 maH. These batteries are 2300 maH and were sitting around for 4 days. I put in a second set this morning, and two were reporting to still be full after their last charge two days ago.

What does this mean? Get quality batteries AND a quality charger. Batteries of the same batch will each perform differently, and a good charger will minimize those performance differences.

Last edited by flipped4bikes; 11-07-07 at 07:14 AM.
flipped4bikes is offline   Reply With Quote
Old 11-07-07, 07:35 AM   #25
edzo
Senior Member
 
Join Date: Feb 2006
Bikes:
Posts: 1,564
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
wow the history channel had modern marvels last night
and it was about BATTERIES

I almost came
edzo 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 06:51 PM.