Author Topic: 3 sizes of NiMH same capacity (Read 3363 times)

Norm · « **on:** March 13, 2007, 11:18:15 PM »

batteries and first ones I've seen in D size...

2500Ma....they should be more than that ...I've

seen AAs with that much 2 for something like

$14 ....wow ! Well here are C size for like $12

.....they also are 2500Ma. Okay next ones above

that are AA 4 for $10.82

also 2500Ma. !

Ridiculous prices ! (these weren't exactly the

prices but something like that) These were all

the same brand.

I got some 2000Ma AAs at big lots, 8 for about

$10....There were 5 packs left ....I kept

checking back every week....they weren't selling

, 2 weeks slipped by and they moved the whole

rack now all I can find is AA rapid chargers, 2AA

NiMHD batteries included for $14-16.

Duh ! .....guess I shoulda bought them all

when I could Hmmm? Dumb Me ...I never learn !

Well any how what is the story on these

different size NiMH batteries with 2500Ma?

( :>( Norm.

ghurd · « **Reply #1 on:** March 13, 2007, 05:06:51 PM »

At least a couple brands, the Cs and Ds are AAs, sort of wrapped in paper.

Some Ds are 7000, 9000, and 11000. Probably higher by now.

They are 'Pricey'. Kind of hard to find.

Hosfelt (Steubenville) has Vinnic Ds,

at 4000maH Nicad for $4.35, 6000maH NiMH for $8.39.

Not the best prices around, but what I can find right now.

G-

Norm · « **Reply #2 on:** March 13, 2007, 06:10:02 PM »

Okay that explains it...I should have known...

It was mostly for those 5 led lamps ...they work

a long time with 2000Ma rechargables ...I kinda

top em off every 3 or 4 days. They really work

swell ( the lamps) the wife really likes 'em .

If I forget to put one back after I charge the

batteries... "Where's the light that goes here?"

I'm trying those 2-led lamps of mine with my

6 volt Ni-Cad sticks ...I figure that 5 ni-cads

at 1.2v and 1300Ma each is better than 4 NiMH at

1.4v and 2000Ma ??

We'll find out tonight .

Thanks Ghurd !

( :>) Norm.

Snow almost gone...(for how long?)

jimjjnn · « **Reply #3 on:** March 13, 2007, 06:10:42 PM »

2500 ma. Does it give you hourly rate?

I expect the D cells will output 2500ma for longer than time than the C and AA.

wooferhound · « **Reply #4 on:** March 13, 2007, 06:31:04 PM »

You can get some 10000 mah D cells for about $5.oo shipped on eBay

http://search.ebay.com/search/search.dll?MfcISAPICommand=GetResult&ht=1&shortcut=0&from=
R41&query=nimh+d&category0=&Submit=Search

bigdan · « **Reply #5 on:** March 13, 2007, 06:45:08 PM »

I read somewhere that a few brands use the same internals in all three sizes, AA, C, &D. That would explain the same ratings. They make an F size cell 14000Ma now, I saw then on a electric bike site, very pricey.

Good Luck and Have Fun Bigdan

ghurd · « **Reply #6 on:** March 13, 2007, 09:24:27 PM »

F is the size (x4) in many 6V lantern batteries.

G-

willib · « **Reply #7 on:** March 13, 2007, 10:29:59 PM »

has anyone found a difference in the holding charge of rechargeables , from one manufacturer to another?

i have four Duracell 2050mAh , over four years old , still going strong

then i bought four ESA , 2000mAh that came with a nice charger ,also about four years old , also still going strong.

then last year i got four Energizer 2500mAh that seem to be the crappyest ones of all , and they were the most expensive !

Lastly i recently got four Malibu NiCds 900mAh , too early to tell , but they seem ok so far. and they were really cheap at home depo , look in the outdoor solar light section

nothing to lose · « **Reply #8 on:** March 14, 2007, 05:10:52 AM »

At Big Lots I got a fast charger that came with 4 AA and 4AAA for $15

AA 2200Mah

Never looked at the AAA and not sure where they are now. Never used them.

At first the 2 AA went dead fast in the camera and the second AA set went dead fast, saw the camera has a discharge mode to drain the batteries dead to refreshen them.

Drained them once or twice and recharged and now they are great, never seem to go dead in the camera. About the only thing I use them in. The kid did run a CD player with them for HOURS on a trip last week. Not sure how well charged they were before we left.

Nice thing about this charger is it uses a wallwort and has a 12V adapter to use in the car instead of the wort. I can charge 2 or 4 at time.

You know I am thinking about getting another one or more of these.

12V adapter, try that on my big batteries to power the charger.

Nicad charger, maybe Bruce pack cells 2 or 4 at once? Have to make connections for it.

And the 4AA batteries I can use.

Other than remote controls I don't have much use for the AAA though unless I get enough to series up or parralel.

wooferhound · « **Reply #9 on:** March 14, 2007, 07:05:48 AM »

It is interesting that the larger cases cost so much more than the little part on the inside.

Norm · « **Reply #10 on:** March 14, 2007, 07:42:26 AM »

That size F at 14000 would equal about ten

6 volt NiCad sticks ? Or five 6 volt 2500Ma NiMH

sticks ?

A lot of factors enter into the picture that

newbies don't think about when they get on the

Get off the Grid Mode , just a little research

, gets you into harsh reality.

One NiCad 6 volt stick (5 cells) each 1300ma.

,1.2v running 2 white leds.(6.0volts)

Four NiMH cells each 2000ma.,1.4v (5.6 volts)

NiCad after 8hrs.-----5.1

NiMH after 8hrs.-----3.8

I guess my next experiment is to see how well

a 6 volt NiMH 5cells will compare to a NiCad stick

Raining today so good time to do this skip the

windmill install today .

( :>) Norm.

Norm · « **Reply #11 on:** March 14, 2007, 08:04:43 AM »

Yes it is interesting....also interesting as

that certain store will probably knock a buck off the price and eventually discontinue the item when they find it isn't selling.

( :>) Norm.

cyplesma · « **Reply #12 on:** March 14, 2007, 08:15:06 AM »

I've been using those Malibu batteries in a couple of wall clocks, so far they have lasted almost a year on a single charge.

ghurd · « **Reply #13 on:** March 14, 2007, 08:23:12 AM »

NiCD or NiMH?

G-

cyplesma · « **Reply #14 on:** March 14, 2007, 08:25:44 AM »

I got one of those everready recharge units, cam with 4 AAs the batteries seem to be crap, they were nimh. the unit itself seems to only work on side pair of batteries, there is some corrosion, but I do try to recharge normal akaline batteris from time to time. they get hot mighty fast, not I don't recommend it. I haven't had any blow up, but not all of them work afterwards either.

and none of the recharge batteries work very well in the small beard trimmers, but I did find one beard trimmer that has it's battery built in, haven't tried taking that unit apart yet. I can charge it once every three to four months and get one to two uses a week for those three months on a single charge.

the normal battery operated beard trimmers seem to kill batteries just sitting around doing nothing.

cyplesma · « **Reply #15 on:** March 14, 2007, 08:32:57 AM »

well, I took the clocks off the wall and it seems I'm a liar, they have some normal alkaline batteries in them, I'll have to find out from my wife & kids to see if they replaced them and when. or maybe they'll fill in the blanks in my memory if I did it.

I even have lost a 2 x 6 x 3 board that I had drilled holes into to serve as a battery holder, gonna have to interrogate the kids when they get home. again maybe they'll just remind me what I did with it though.

Bruce S · « **Reply #16 on:** March 14, 2007, 10:36:16 AM »

Hey Norm;

The big reason I tend to stick with the NiCd is that they have a higher rate of discharge for high drain items like portable drills and e-bikes:--)

Probably why the NiCds are holding their volts better.

NiMh are getting there, but still not up to the NiCds just yet.

Have fun;

Bruce S

Bruce S · « **Reply #17 on:** March 14, 2007, 11:02:49 AM »

NTL;

If that charger is the same that I got a big lots up here, you'll be able to charge the sub-C batts no problem. I got curious and tried it worked just fine.

I have even raided the HF PDU ( now called power distribution unit due in entirely to Ghurd making sure I fully understood solar charging :--)) I open the unit and disassembled one of the 12V outlets and hooked up a car lighter outlet so I can plugin 12Vdc plug type stuff. Put this puppy into it and watched just in case magic smoke wanted to pay a visit:--)

Charged up just fine :--).

HAVE FUN!!

Bruce S

willib · « **Reply #18 on:** March 14, 2007, 11:35:02 AM »

G the Malibu batts are NiCd , they are replacements batts for some of Home Depo or Lowes solar lights.dont remember which store

nothing to lose · « **Reply #19 on:** March 14, 2007, 03:22:29 PM »

Thanks Bruce

Glad to know the charger works on 12V like that and with the sub-C also.

Should be the same charger I think.

This charger will be handy then for lots of things using single sub-c cells. Charge them in the car/truck as needed 2 and 4 at a time. No need to have a 12V stick charging then every time.

cyplesma · « **Reply #20 on:** March 15, 2007, 09:37:26 AM »

I do remember my malibu barbie ehemmm batteries came with the solar yard lights from home depot, but I do believe home depot and lowes are related somewhere in the owner chain.

cyplesma · « **Reply #21 on:** March 15, 2007, 09:40:45 AM »

I didn't care for the energizer rechargeable batteries either. those are the ones I got with my charging unit, like I posted below I really liked the charing unit but the energizer rechargeable batteries didn't last very long, and in about 5 recharges they no longer held a charge at all.

willib · « **Reply #22 on:** March 16, 2007, 07:46:15 AM »

i guess the energizer bunny doesnt use HIS rechargeables .

i am very dissapointed with them

they are the only ones that will disscharge way below their nominal Voltage of 1.2V

i have seen them below 1.0 Volt

they stink!!

i want my money back!

Norm · « **Reply #23 on:** March 16, 2007, 08:49:00 PM »

Alkaline batteries recharge faily goodin my

amber solar lights....the regular rechargables

don't need much to recharge them anyway 3 or 4

days of no sunshine....just ambient daylight

they still come on when it gets dark and stay on till

daylight even with 2 inches of snow on top of the solar cell

course they aren't blinding lights either....

they were like $8 for 8 at GoodWill I think

someone bought them then decided they weren't

what they really wanted , too bad all solar

stuff don't work that well or that simple....

( :>) Norm.

Norm · « **Reply #24 on:** March 16, 2007, 09:06:42 PM »

Bruce;

At least from what I've read...they seem

to have a longer life also....what Amp/hr and

voltage for E-bikes?

Really having fun making those 6volt NiCD

sticks...spent most of the day cutting 3 and 3/4

inch by 5 inch pieces from plastic 2 liter pop

bottles I've got almost 8 of those sticks made

now ....

( :>) Norm.

Bruce S · « **Reply #25 on:** March 19, 2007, 09:30:41 AM »

Norm;

The current build is for 48V @ 20Ahr. The new e-scooter that is for our daughter

Came with 12Vdc@12Ahr SLAs. Okay batteries, but for sure do not like the 28F we've been having. They also suffer from not liking the 550 watt draw that it takes to get going. The e-meter shows into Red zone when taking off then settles down.

I measure the battery box and I can get twice that using the Sub-Cs that are in those packs. I will take the batts up to 50+ Volts so the system sees it as 48Vdc and see how it goes with the 20Ahr sets, if all goes well and the price comes down I may buy some of the C or D ones that are up in the 10Ahr rating and put those in where she can ride it with 30 - 40Ahr which will be more than enough to get back and forth for dance.

The charger is 48V output smart charger. Nice runs okay on inverter too.:-)

The style of plug in that is the same as a plug in for AC into computers:-(

Cheers

Bruce S

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Author Topic: 3 sizes of NiMH same capacity (Read 3363 times)