ProjectZero
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Registered: May 2000
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Posts: 209 |
quote:
Originally posted by vciorici
I don't know what is this c/10 but I can tell you that I saw a charger by UNOMAT for NiCad for two AA and two AAA. There was written that for AAA I need to recharge for 11-13 hours. So what is this? there was no any button to switch bettwenn normal and fast charge.
If yiu can't answer at this so tell me are NiCd better to use than normal Alcaline baterries like Duracell, Energize. Will this NiCd be more cheaper in cost than a lot of normal bateries??
Sorry for my English please??
C/10 represents:
Battery Current Capacity
(divided by)
10 hours
The UNOMAT _appears_ to be a slow/trickle charger. Since I do not know what that charger looks like, you will have to be our eyes on this.
Do this: On the UNOMAT charger, look for anything that states some type of output or DC specifications. For example:
DC: 3.0, 45 ma
Output: 3.5vdc, 40ma
Charge: 6.0vDC, 40ma
Or something along those lines. If the UNOMAT charger charges 2 AA or 2 AAA batteries for 11-13 hours, I would expect the charging specifications to be around 3 volts DC with a current level of 40 to 50 ma (milliamps) for the AAA.
If you can't find any specification listed, then it is Buyer Beware. Chances are it's a slow charger, but from the type of questions you're asking, I would not take the chance with NiMH, especially if it going to be used in your Visor.
As for your other questions: Is it better to use NiCads than Alkaline batteries? Is using NiCads cheaper than using Alkalines?
Is it Better? That's a subjective question with a lot of different answers. It can be better from an environmental point of view-- you're not disposing the regular batteries as frequently as the NiCads or NiMHs.
It can be better from a money point of view-- although the initial cost of rechargables are higher than the regulars, you can reuse the rechargables many hundreds of times (and more if you take good care of the rechargables).
But, if you do not take care of your rechargable batteries, they may not last as long. You'll probably save money in the long run regardless but you might not get as many uses as the next guy.
The runtime of rechargeables can be less than regular-- maybe 1/3 less than Alkalines.
You have to use a recharger with the NiCads/NiMH. And you have to keep a second pair of AAA charged when it comes time to change batteries.
The "shelf life" of a fully charged NiCad/NiMH is shorter than the "shelf life" of Alkalines. NiCads, I believe, has a discharge rate of 1/30 of its total current capacity every day-- which means, it'll run out of current all by itself in a month sitting by itself. I forget what the discharge rate is for NiMH but I seem to recall it's different.
But on Alkalines, it can have a shelf-life of years.
It's really up to you as to using rechargables or Alkalines. They each have their pros and cons (and followers).
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01-05-2001 12:52 PM
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