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AFAIK, Li-ion or Li-pol are practically the same in terms of performance and size. They merely use a different medium. Li-ion is more stable but Li-pol is getting better and better nowadays and is also much cheaper to mass produce so manufacturers prefer them. Ni-MH is a relatively old technology and for the same size as a Li-based battery it holds less charge and generally has a shorter life.
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Posted: 2005-04-14 03:23:03
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It's not matter of size, but weight, li-pol are much lighter than other 2. Buying non-original battery is lottery, and the odds to get something good are small.
This message was posted from a T610
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Posted: 2005-04-14 03:47:31
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blackspot I think you have it backwards...
LiPol batteries are more stable than LiIon.
LiPols were developed to solve the inherent unstable nature of LiIons... at the slight expense of charge capacity/weight. (Supposedly this is what causes those exploding batteries that we hear about... something with the gas vents required on LiIons)
LiPols have the advantage of being lighter however... when a couple of mAh isn't an issue, you can get LiPols a lot lighter, and thinner than LiIon batteries.
If maximum capacity regardless of weight is what you need, then go LiIon... they're cheaper too.
If weight and size are priority, get the LiPol battery.
You can read more info in the link posted above.
To be honest, unless you have an old Ericsson T28, T29, T39, or their R counterparts... LiPol won't be such an issue over LiIon. You won't notice the size difference at all, and the weight isn't that big a deal (I think it's a couple of grams)
On the T39 and R520... the size is noticeable... the LiPol batteries for these phones save you about 4mm off the thickness of the phone.
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Posted: 2005-04-14 03:52:04
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I read it here:
http://www.buchmann.ca/Article6-Page1.asp
Maybe I understood it wrong, but basically it states that Li-polymers were developed to avoid the liquid electrolyte and among other reasons, allow flexibility on design. But the problem is that the dry polymer suffers from poor conductivity and high internal resistance and requires a high temperature to operate properly so they added a gelled electrolyte. The technology is generally under development, in fact, the Li-Pol batteries we are using now are actually hybrids at this point and is relatively unstable IMO.
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Posted: 2005-04-14 06:14:20
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to CyberVisitor:
Buying cheap rip-off batteries is a gamble, you may get a decent battery, you may screw up your phone, that's all I'm trying to say - you take a risk.
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Posted: 2005-04-14 07:33:13
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Spend an hour or two at a busy SE service centre and see how many people come in with phones damaged by leaky/melting/exploding batteries. I did and it was an eye opener.
As previously indicated, you may get a decent off-brand battery, but you are more likely to get a crappy one.
[ This Message was edited by: ESTOR on 2005-04-14 18:22 ]
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Posted: 2005-04-14 19:20:31
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It takes about 40 minutes to charge my HBH-600 from empty red to full green.
But will something "bad" happends if i don't take it "off" charge?
(I have obviously a little brain - 'cause i sometimes forget to take the charger off when i go to bed....)
_________________
"Please excuse my very bad English!
It's not easy to think Norwegian
and write English!"
[ This Message was edited by: rufo on 2005-04-16 13:06 ]
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Posted: 2005-04-16 13:37:49
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blackspot, yes the current LiPols we use now are hybrids... but they are more stable than LiIons which have been known to explode due to their gas emissions.
rufo, no, nothing bad will happen... your headset switches to 'trickle mode' when the battery is fully charged.
The big difference between a quality battery and a cheap knock-off is voltage stability and heat tolerance.
Poor chemicals and materials will cause voltage irregularities that can damage sensitive electronic devices. They also don't have the same charge cycle capacity so they will die sooner than oem batteries. Not to mention the safety hazard they pose since some of them don't seal their chemical components in properly. These may leak out and corrode your phone, cause a fire, or explode.
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Posted: 2005-04-16 14:36:22
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So if russian roulette is one of your favorite hobbies, be sure to get a knock-off battery as well
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Posted: 2005-04-18 16:20:24
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