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baub
18:11:40 Wed
May 19 2010

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Batteries : any new dry cells lately ?

Every year I swear not to buy cheapo batteries for my toys, err, tools. In about a week or two, I'll be heading West for a bit of frivolity and fun. To prevent the usual problems I'll actually buy good batteries for a change. No mo Shanghai rejects, no sir !!
Are there any hi quality dry cells for cameras, flashlites out there ? Rechargables too.

Please illuminate me,

b

  
MarshallAk
18:29:12 Wed
May 19 2010

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Re: Batteries : any new dry cells lately ?

They do make special long-life batteries for camera use that last longer than the usual alkaline batteries. Cost is quite a bit higher though. You can inquire at any place that sells a lot of cameries. Watch the voltage though...I think some of the "lithium" cells are higher than 1.5 volts...

Consumer Reports did a review on batteries about a year ago, and the "best bang for the buck" turned out to be alkaline cells in the pack of 48, sold by Costco warehouse. (AA, or AAA sizes)

Marshall

  
leonard
18:59:52 Wed
May 19 2010

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Re: Batteries : any new dry cells lately ?

I use nicad rechargeables and have a charger that plugs into a car's cigarette lighter. If I'm camping, I have the charger hooked up to my camper battery that is recharged with a solar panel. One panel also puts out enough charge to keep the camper battery up even when I run my 100 watt ham rig.

Leonard

  
baub
19:39:23 Wed
May 19 2010

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Re: Batteries : any new dry cells lately ?

Marshall: good advise. Will contact a camera shop and research lithium battys.

Leonard: I have a setup with charger and Nicads too. Works good, but the batts don't seem to hold a charge long, even when completely charged. They did when new tho.
Been looking at a small solar setup too. Same reasons. My girlfriend is a ham, 2 meter variety and will eventually get back on the air.
Some of the small windmills are about $1/watt now.

thanx,

b

  
leonard
22:57:06 Wed
May 19 2010

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Re: Batteries : any new dry cells lately ?

You can see our field day setup from last year at

2009 Field Day

That one panel seems to be plenty to run my 100 watt rig.

You might notice a dredge or 2 around in the pictures. The yellow Keene is mine. Dredge season in Wyoming opens on July 1st. Works real well along with field day. Gold isn't any where near as good as Alaska but it's a whole lot closer to Colorado.

Leonard
[1 edits; Last edit by leonard at 23:02:39 Wed May 19 2010]

  
chadjensen1
05:48:39 Thu
May 20 2010

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Re: Batteries : any new dry cells lately ?

I like the nickel metal hydride. but there is a trick to buying them. The ones that are labeled as hybrid or pre-charged are the only ones to buy. here is a great write up with some great advice on batteries.

http://www.codinghorror.com/blog/2008/03/adventures-in-rechargeable-batteries.html

Chad

  
baub
19:39:41 Thu
May 20 2010

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Re: Batteries : any new dry cells lately ?

Hi Chad,

There's a LOT of info there is rite ! The boss is out shopping for battys now after reading this article.\Thanks for the interesting and informative post.

On a side note :

Battys get used up relatively quickly in solar and windmill usage. The best ones I've heard of to use are forklift battys. Large capy and physical size seems to be the reasons. Some last as long as 25 years. Hard to backpack tho.

b


  
auldrider
20:25:19 Thu
May 20 2010

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Re: Batteries : any new dry cells lately ?

I was browsing this site, it may be of interest to people interested in modern batteries! http://www.advancedeco.co.nz/lifebatt.html
The videos are worth a look at. (well, IMHO anyway) Cheers, John.

  
apostrophe
22:26:02 Thu
May 20 2010

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Re: Batteries : any new dry cells lately ?

hey baub
don't nicads have a memory? or is that old school? it seems that you have to completely discharge them in order for them to recharge to 'like new' capacity.
apos

  
dredger
22:56:16 Thu
May 20 2010

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Re: Batteries : any new dry cells lately ?

Hey apostrophe,

I hate to say it, but I think we are old school mate, :confused: haha.

And i agree, rechargeable bats do have a memory, and suggest if you let them run down completely, then fully recharge them,a few times, they get most of their memory back,

dredger.

For the new guys, get / make / find / buy a small mechanism to hold ya re chargeable's, with small light bulbs, the light bulb will run the battery dead before recharging,

  
MarshallAk
23:19:02 Thu
May 20 2010

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Re: Batteries : any new dry cells lately ?

Ni-cad batteries do have a "memory", but the new NiMH ones do not (supposedly). Newer yet are the NiZn (nickel-zinc) rechargeables, which apparently have much greater power density per unit weight, a little higher voltage, and a lower self-discharge rate. (1.6v to 1.65v output per cell) Whether the marginally higher voltage might hurt a metal detector is something I can't answer...maybe yes, maybe no. (I tend to think they won't) I think I'll get a set with a charger and try them out in my LED penlight. I never liked ni-cads because of their low voltage and memory affect. The Ni-Cad batteries for my DeWalt cordless drill are expensive ($90), and don't last worth a hill of beans...after a year or so, they are about done for. The NiMH batteries are an improvement, but they still discharge themselves. The ones in my camera will be half-dead after just sitting in the camera un-used for a month or so.
Check out this write-up on the new NiZn cells: http://www.engadget.com/2009/11/09/powergenix-nizn-rechargeable-aa-batteries-finally-some-cells-w/

Perhaps it's time to "fire" the Energizer-Bunny...

Marshall
[3 edits; Last edit by MarshallAk at 23:27:38 Thu May 20 2010]

  
Walt_Anchorage
23:40:16 Thu
May 20 2010

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Re: Batteries : any new dry cells lately ?

I agree with Marshall (and Consumer Reports) Get the Costco batteries in bulk. They cost less. you'll always have a fresh battery and you don't need to worry about recharging.



---
MY Web Sites:
rubyalaska.info
alaskagoldrush.info
swiftcreekmine.com
 
 
dredger
02:44:37 Fri
May 21 2010

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Re: Batteries : any new dry cells lately ?

Interesting quickie experience , My son wanted to start competing in small remote control cars, so off we went to watch the biggest and best around, go around, where I meet up with another dad, ( who had spent big enough bucks to make his eyes roll back ) talking about the race scene , he told me you can not get to the top competition unless you are sponsored by the or a battery company, cause they pick the best 5 battery;s out of every 1,000,made to give to the guys they sponsor, and boy , I could certainly see how much faster they were, :confused:

dredger.

  
MarshallAk
18:20:20 Fri
May 21 2010

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Re: Batteries : any new dry cells lately ?


Update:
I did some more reading on the new NiZn cells, and there may be a problem: when freshly charged they have a voltage of 1.85v, which is likely to fry a metal detector using 8 or 10 of them in series, since the voltages are additive in series. And it would drastically shorten the life of a flashlight bulb as well.
Here's a well-balanced review by an engineer-type guy:
http://www.amazon.com/review/RQFY1NUK4L58V/ref=cm_cr_pr_viewpnt#RQFY1NUK4L58V

I think I'll just stick with alkaline throw-aways, or NiMH rechargeables. I still have the same opinion of Ni-Cads though...not worth the trouble...

Marshall

  
baub
20:04:02 Sun
May 23 2010

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Re: Batteries : any new dry cells lately ?

Thaks for the info guys.

b

  

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