Rchargeable Batteries - Any good?

I cycle between 2 sets of 2x2700 NiMH Sony Rechargables for my 360's wireless controllers. The batteries really belong to my sony digital camera though. They last ages and are a major lifesaver.
 
saitrix said:
This is about the best charger as you are going to sensibly get.

*whoops cant link there*

You can go the RC charger way and use the 4 cell cradles. Then you could in thoery charge 24 cells in like 40minutes using multiple cradles for the cells linked up in series.
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What is the make of the charger you were refering to?

Thanks for all the help everyone.

Where can I buy a VERY GOOD charger on its own without getting some naff batteries with it so I can buy good batteries seperately?

Also, would a 2800 NiMH battery allways be better than a 2500 battery?
 
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I would second the recommendation for a RC modellers charger- as they offer delta peak and adjustable charge rated, however 1 hour charge for NIMH is way too fast. I would charge 1/4 of the rated battery for NIMH.

3000mah AA's are available but they cost considerbly more than 2500.
 
Do they not do lithium ion cells in AA size then?

Anyone know how much charge a regular non-rechargeable Duracell AA battery holds in terms of mAH?
 
had some 2500mah ones with a uniross charger i got from argos. I lost 2 of the 2500 ones with the camera so bought some 2300 ones. pack of 4 2300 cost about £7 delivered. the 2500s lasted for ages (weeks in digital camera going out quite a lot) the 2300 will still last me ages aswell
 
Jonny69 said:
Do they not do lithium ion cells in AA size then?

Anyone know how much charge a regular non-rechargeable Duracell AA battery holds in terms of mAH?
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just standard duracell ones? i would think about 300mah, things like M3 might be around 700mah
 
Gimpymoo said:
Also, would a 2800 NiMH battery allways be better than a 2500 battery?
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Usage and £/mAh should also be considered.

3 sets of cheaper 2000mAh might be better than a 2 sets of 2800mAh.
 
From my days of RC racing I came to learn a fair bit about the care and use of rechargable batteries. Most people will recommend you get NiMHs due to them being a more modern battery than NiCads but NiCads still have uses and which to get depends on what you want to use them for.

The first thing that needs mentioning is 'memory effect'. It's rubbish. It doesn't exist (or more correctly it's not the effect that most people associate the term with and is not relevant to domestic battery use.)

The reason that nicads suffer reduced capacity over time is due to their finite lifespan combined with overcharging. Overcharging is the killer of rechargable batteries and great care should be taken to avoid it. (Using a peak charger of some kind will give your batteries a much longer lifespan than a timed one will)

The main advantage that Nicads have over NiMH is with low drain applications. NiMHs are not very good at retaining charge for long periods of time so for things like clocks and to a certain extent wireless mice & keyboards where batteries do not need changing often then either NiCads or conventional alkaline batteries may be more suitable.

For high drain applications such as cameras where batteries are frequently replaced then High capacity NiMHs are where it's at.

Anybody who is interested in reading any of the geeky/techy background to any of this should start with this:

http://www.repairfaq.org/ELE/F_NiCd_Battery.html
 
I got a battery charger called a rezap i think it not only recharges rechargable battries .

but it can recharge normal battries up to 15 times with some brands.


pretty nifty .
 
I have always used Uniross batteries and chargers and have always been very impressed with their quality and performance. Steer clear of the cheaper types of charger as they are 'dumb' chargers which leave you doing more than a bit of guess work.
The more expensive chargers are more expensive for good reason, they are 'intelligent' which means that they will automatically detect when the batteries reach full charge and end the process automatically. Fast charging is NOT a problem if it is done properly with a proper charger. I use www.batterylogic.co.uk as does a previous poster in this thread. They certainly seem to know what they are talking about and stock only the best Uniross chargers at good prices. I personally would recommend any of the units in the Uniross Sprint range.
 
Uniross batteries are known for being pretty bad. i saw some test on line somewhere (can't find link atm) which shows they lose their power pretty sharpish.

Ansmann make the best batteries IMO. if you're looking for AA, the photo ones which are about 2500mah are excellent.
 
I have a Uniross charger and batteries and, quite frankly, they are ******* useless. I can charge them fully yet only give my camera 50% power. I always carry about some normal Duracell batteries whenever I use my camera as I can guarantee they will run out.
 
Uniross batteries are excellent in my opinion. If they are not performing you probably have one of the low spec 'dumb' chargers which are ok for tv controls etc but not very good for thirsty devices like digital cameras. Try an intelligent charger and you will get a proper full charge every time with very very good performance.

I have only ever seen one test of uniross batteries where they came out badly and guess what? the people behind the 'tests' are an ansmann dealer .. tantronics independent review ?
 
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