Battery Life for Rebel XT

Discussion in 'Digital SLR' started by Joe Cole, Mar 24, 2005.

  1. Joe Cole

    Joe Cole Guest

    I have recently purchased a XT with a 17-85mm IS USM lens. I can take
    about 1GB of JPEG on my SanDisk before the low battery lights come on?
    Is this normal? Also, I realize with the low battery, I am able to shoot
    but cannot perform proper metering( I press the shutter, it would not
    beep, but would shoot instead). Sometime, turning the camera on and off
    solve the problem. It's there a problem with my shutter release or os
    this just normal if the battery is running low?


    Thanks
    CJ
     
    Joe Cole, Mar 24, 2005
    #1
    1. Advertisements

  2. Joe Cole

    Steve Wolfe Guest

    I have recently purchased a XT with a 17-85mm IS USM lens. I can take
    The XT has a much lower-capacity battery than the original Digital Rebel,
    which is supposed to be offset by the lower power consumption of the Digic
    II chip as opposed to the Digic chip. However, the power draw of the flash
    and lenses has remained constant, meaning if you are using the flash or a
    high-draw lens, you will see significantly shorter battery life than with
    the original Rebel.

    I don't have super-high-draw lenses, and use an external flash, so I get
    considerably more than that before my battery starts getting low. In fact,
    I haven't actually run out the battery yet, but I've had it show "half way"
    after (if I recall correctly) about 300-600 shots.

    steve
     
    Steve Wolfe, Mar 25, 2005
    #2
    1. Advertisements

  3. I have the original Rebel and battery life, or the lack there of, is exactly
    why I went out and bought the battery grip.

    I just took 479 (2.63 gigs) RAW shots over 3 days and didn't have to charge
    the batteries until the end of the second day and since I always have a
    spare battery charged in reserve I just remove one of the low ones and
    popped in the charged one and kept shooting. Both lenses used were Image
    Stabilizer lenses (which draws power from the batteries.)

    I believe the XT is suppose to get better battery life then my drebel but I
    think I'd still suggest the grip. Besides after holding the XT I think its
    size almost makes the grip a necessity. IMO it's toooo small.
     
    Robert R Kircher, Jr., Mar 25, 2005
    #3
  4. Joe Cole

    Sheldon Guest

    One more thing. It takes a while for most batteries to reach full
    potential. Cycle the battery about three or four times before you pass
    judgement on it.
     
    Sheldon, Mar 25, 2005
    #4
  5. From: "Sheldon" <>


    |
    | One more thing. It takes a while for most batteries to reach full
    | potential. Cycle the battery about three or four times before you pass
    | judgement on it.|

    What do you mean by that Sheldon ?
     
    David H. Lipman, Mar 25, 2005
    #5
  6. Joe Cole

    jfitz Guest

    Lithium-ion rechargeable batteries must be discharged and recharged a number
    of times before they reach their full capacity. Also, unlike NIMH and NiCad
    batteries, they give better performance if they are not fully discharged
    between recharges.
     
    jfitz, Mar 25, 2005
    #6
  7. Joe Cole

    Alan Browne Guest

    jfitz wrote:

    Does that mean that if I don't use it, it has more unused energy
    available, only as long as I don't use it?



    ;-)
     
    Alan Browne, Mar 25, 2005
    #7
  8. From: "jfitz" <>


    |
    | Lithium-ion rechargeable batteries must be discharged and recharged a number
    | of times before they reach their full capacity. Also, unlike NIMH and NiCad
    | batteries, they give better performance if they are not fully discharged
    | between recharges.
    |

    OK -- Thanx !
     
    David H. Lipman, Mar 25, 2005
    #8
  9. Joe Cole

    Sheldon Guest

    I just know that most rechargeable batteries will not give you their maximum
    time until you have used them and recharged them a few times. It can be
    rather significant, too. That said, the battery in my D70 just seems to
    last forever, even right out of the box, unless you hook the camera up to
    your computer. Then it just seems to suck the life out of the battery very
    quickly.
     
    Sheldon, Mar 26, 2005
    #9
  10. Joe Cole

    jfitz Guest

    Precisely. Lithium-ion batteries behave much like the perpetual motion
    machine I have invented. My invention offers the potential for perpetual
    motion as long as it is not activated. ;) Solicitation is not permitted on
    this forum or I would provide you with the web link so you can purchase this
    remarkable product.

    On a more serious note, I will clarify my statement. For longest service
    life, defined as number of equivalent image captures before end of service
    life, a Lithium-ion battery offers more total captures if it is not fully
    discharged before recharge. NIMH and NiCad batteries offer more total image
    captures if they are fully depleted, but not to the point of reversal,
    before recharge.

    That is the published position of many of those who manufacture these
    devices. Confirmation of this is only a click away on Google. My personal
    observation, based on using rechargeable batteries since the very early
    sixties, is that it is mostly BS.
     
    jfitz, Mar 26, 2005
    #10
  11. Using mine with the 28-135 IS USM lens yesterday I managed to shoot
    459 high res jpegs without even coming off 'full' on the indicator -
    all in the space of around 30 minutes. IS was turned off, most of the
    shots were in continuous bursts so I guess that the LCD is not used
    very much (perhaps 1 in 14 or so photos), and none with flash.

    I've only had the kit a couple of days, so I guess time will tell.
    I've switched across from a Sony DSC-V1 which had just about the worst
    battery life known to man!
     
    David Thompson, Mar 26, 2005
    #11
  12. Joe Cole

    Tumbleweed Guest

    The biggest problem I've noticed with NiCads is that if you leave them
    discharged for too long they simply won't hold a charge again. I use NiCads
    in my underwater camera, which only gets used once a year. I've had to bin
    several sets of NiCads because, although the "fully charged" lamp lights,
    the batteriesdischarge completely after a few shots.
     
    Tumbleweed, Mar 26, 2005
    #12
  13. Joe Cole

    Alan Browne Guest


    My reply above was meant to be humor, nor commentary. I too have found
    that my Li-400 battery lasts quite a long time after a few charges.
     
    Alan Browne, Mar 26, 2005
    #13
  14. I managed to shoot for a couple of hours (outdoor, no flash, no IS) without
    the battery leaving full. I guess flash and IS really drain the battery.
     
    Chin Jin Phua, Mar 27, 2005
    #14
    1. Advertisements

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.