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Thread: Batteries Which are the BEST?

  1. #1

    Default Batteries Which are the BEST?

    Hi!,

    Talking about AA Batteries for cameras, which are the best for digital camera nowadays? Those with chargers and how much? Prefered with price better.

    I Just bought a 2700mah Camelion battery and now still undergoing charging.

    Please share!

    Thanks

  2. #2

    Default Re: Batteries Which are the BEST?

    u should give those Sanyo Enerloop AAs a try. They're "only" 2000mAh but they maintain their voltage at > 1.2v right till they go flat, unlike NiMHs that gradually drain down beyond your device's usable voltage, causing it to power off even when there is still power. They seem to last longer than my Sanyo 2700s in my flash.

    These new sanyo cells also have very low self-discharge, eg. can maintain 90% capacity even when stored for 6 mths.

  3. #3
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    Default Re: Batteries Which are the BEST?

    best for me so far, Konnoc...
    find it better than powerex.

  4. #4

    Default Re: Batteries Which are the BEST?

    I saw the Sanyo Eneloop at Best Denki. One is a Quick Charger & can only charge 2 batteries at one time. The other bigger one can charge 4 batteries, but izit a slower one? How quick is quick, and how slow is slow? I rather get the bigger one if it can fully charge in less than 2 hours, so that i can put in all 4 batts into my flashgun at one time.

    Any user with experience can share?
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    Default Re: Batteries Which are the BEST?

    Quote Originally Posted by VSonic06 View Post
    u should give those Sanyo Enerloop AAs a try. They're "only" 2000mAh but they maintain their voltage at > 1.2v right till they go flat, unlike NiMHs that gradually drain down beyond your device's usable voltage, causing it to power off even when there is still power. They seem to last longer than my Sanyo 2700s in my flash.

    These new sanyo cells also have very low self-discharge, eg. can maintain 90% capacity even when stored for 6 mths.
    hello Vsonic. where is a good (cheap) place to buy them?

  6. #6

    Default Re: Batteries Which are the BEST?

    i'll swear by Maha PowerEx 2700mAh NiMH AA Rechargeable Batteries, period!

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    Default Re: Batteries Which are the BEST?

    Quote Originally Posted by VSonic06 View Post
    u should give those Sanyo Enerloop AAs a try. They're "only" 2000mAh but they maintain their voltage at > 1.2v right till they go flat, unlike NiMHs that gradually drain down beyond your device's usable voltage, causing it to power off even when there is still power. They seem to last longer than my Sanyo 2700s in my flash.

    These new sanyo cells also have very low self-discharge, eg. can maintain 90% capacity even when stored for 6 mths.
    Agree with you and somehow my eneloop batts charge up my flash faster... Takes arnd 3s to full charge my 580EX while my 2500mAh sanyo takes 4 s...
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    Default Re: Batteries Which are the BEST?

    Quote Originally Posted by look4raymond View Post
    I saw the Sanyo Eneloop at Best Denki. One is a Quick Charger & can only charge 2 batteries at one time. The other bigger one can charge 4 batteries, but izit a slower one? How quick is quick, and how slow is slow? I rather get the bigger one if it can fully charge in less than 2 hours, so that i can put in all 4 batts into my flashgun at one time.

    Any user with experience can share?
    There is a rating on the charger... Eg. My sanyo charger is 565mAh for 4 batt... So for my eneloop, it takes 2000/565=3.5 hr to charge it fully... While it takes 2500/565=4.4 hr to charge my sanyo 2500 batts...

    Anw, i would just recc u buy the batt and charger seperately...
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  9. #9
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    Default Re: Batteries Which are the BEST?

    Hi, I'm pretty new to this kinda new sanyo batteries. I know this may sound stupid, but can I just ask if the sanyo-envelop battery charges on normal AA chargers? Looks like it is a pretty new kinda technology so maybe the charging also differs. Anyone has any experience?
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    Default Re: Batteries Which are the BEST?

    Quote Originally Posted by Fotophilic View Post
    Hi, I'm pretty new to this kinda new sanyo batteries. I know this may sound stupid, but can I just ask if the sanyo-envelop battery charges on normal AA chargers? Looks like it is a pretty new kinda technology so maybe the charging also differs. Anyone has any experience?
    Of course They are just smthg like "special" Ni-MH batts... They retain a Ni-MH specification and can charge on any Ni-MH charger...
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    Default Some inputs...

    Hiee...

    On Charging:
    There are many brands of rechargeable batteries nowadays. Basically, i would advice getting a particular battery with its packaged chargers as battery charging is one key factor in getting great reliable "battery life".

    NimH battery with its specific capacity and matched chargers are normally meant to be charged to close to its full state (90++% full) based on specific sensing like temperature or duration based charging. Nimh charging are normally curent based and fast chargers especially are made to be time based matched to battery capacity its meant to charge (say 1~2hrs hrs type). Afterwhich then the charger wil go into a trickle charging (lower current) to top off the balance of the capacity of the battery to full.

    How do you know when the battery is almost full? The rapid rise of temperature Dt/dt is normally experienced at the final top off charging. Thus if you have acharger that is really "blind" then these type of chargers may end up overcharging and "pumping" full current in a prolong duration will hurt battery relibility. Too hot a battery for a long duration may result in lower battery life in the long run.

    My charger still charging......this is often the case for where a charger which is optimised to charge a 2100mAh batt for example. But used on a 2700mAh (though they claim that is NimH compatible - yeah of course, Nimh charging is based on current charging) you will expect a much longer time to top off to full battery because the last portin is based on trickle charge. Some battery makers even explicitly say that their NiMh batteries should not be trickle charge - as due to the battery characteristics, trickling charge may end up damaging the battery.

    Low Battery:
    Due to difference in battery internal construction and chemistries, internal resistance may vary. Due to varying internal resistance, of these batteries, given a high drain type of usgae like Digital cameras, fuel guages in cameras may often then not make inaccurate judgement of battery life (due to the fact that for a specific battery, its internal resistance also change in its charge state). So you may have a set of batteries that allow you to get a very high shot counts but using the same batteries on other applications/devices and battery life performs otherwise.

    The camera's programmed (firmware) shut down level is also another area that influences this. Depending on how the batteries voltage look like as seen by the measuremnt circuit while in the camera during usage of the device may also influence the accuracy of the fuel guage.

    Which battery:
    I have tested a few types of batteries and it depends greatly on the battery and use model of the hosting device. For example, i can have a set of NiMh that lastme through close to 400 shots in a low rate like a 1 week holiday trip. And slo as short as 120 on the same batteries for a high rate shoot out - but more of then then not i will take these set of abtteries and set them aside to "cool off/rest" and then use them again after awhile and still can get some shots more from it.

    The most important thing is, use the battery often and roughly get some feel of how much the batteries can deliver in an average use (your own style) and then go form there . Bring enough batteries for the type of shoot.

    sorry for the long message.....
    Last edited by sulhan; 7th January 2007 at 07:48 AM.

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    Default Re: Batteries Which are the BEST?

    thanks Sulhan. In short, u mean it will be prefered if u just use the charger that comes with the batteries as their specification is made to compliment one another. I am right? I had been using a Nexcell charger for sometime, pretty good. I like the alert it makes when your batteries are full . Thinking of maybe getting a pack of enveloop to try out...
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  13. #13

    Default Re: Batteries Which are the BEST?

    hey guys i just bought a charger called Camelion and 4 batteries to charge and use. I find that they are very lasting. I put four 2700 batteries to charge and it finishes in less then a hour. Very good sia. Even got individual LCD screen to tell you the progress charged and it will auto off the terminal when u put a non-chargable batt into it. Total Damage:$100 for charger + 4batts.

    Sorry. first time buy a charger and rechargable batts. Very excited. lol

  14. #14

    Default Re: Batteries Which are the BEST?

    Quote Originally Posted by look4raymond View Post
    I saw the Sanyo Eneloop at Best Denki. One is a Quick Charger & can only charge 2 batteries at one time. The other bigger one can charge 4 batteries, but izit a slower one? How quick is quick, and how slow is slow? I rather get the bigger one if it can fully charge in less than 2 hours, so that i can put in all 4 batts into my flashgun at one time.

    Any user with experience can share?
    For me charging time for the eneloop is not impt. I just charge them in advance and put them in my drawer. Used as needed.

  15. #15

    Default Re: Batteries Which are the BEST?

    sometimes u charge 2 sets of batteries for standby and there was 0 shoot for about a wk. Then suddenly, something prop up n u want to shoot and all the batteries r able to fire only a few shots. How frus!!!

    Therefore, we must always keep a set of alkaline batteries for eveready call up.

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    Default Re: Batteries Which are the BEST?

    Quote Originally Posted by Quest View Post
    sometimes u charge 2 sets of batteries for standby and there was 0 shoot for about a wk. Then suddenly, something prop up n u want to shoot and all the batteries r able to fire only a few shots. How frus!!!

    Therefore, we must always keep a set of alkaline batteries for eveready call up.
    get the eneloop then.

  17. #17
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    Default Re: Batteries Which are the BEST?

    Are those fast charger e.g. VARTA 15 minute charger any good?

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