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What makes Renewal Alkaline batteries rechargeable?

Discussion in 'General Electronics' started by Abugaj01, Jun 22, 2004.

  1. Abugaj01

    Abugaj01 Guest

    What's the difference between an Energizer, for example, and a Renewal
    rechargeable battery in terms of the chemicals?
     
  2. Robert Baer

    Robert Baer Guest

    Quite a while ago, I called and asked; got a partial answer.
    Seems they made a number of changes in the chemistry, the first
    concerning the depolarizer, another change has something to do with
    having an excess of something at (on?) the cathode (may have remembered
    that incorrectly as it has been over a year, so could be at the anode),
    and the third part was adding other chemicals (stabilizers?).

    Certainly not a very good answer, but the best i have.
     
  3. how much longer do Renewal batteries last?
     
  4. Robert Baer

    Robert Baer Guest

    I usually get 20 or more charges of life/useage.
    Depends on the service; the greater the current one draws, and the
    deeper the discharge, the less total charges one should expect.
     
  5. JeffM

    JeffM Guest

    how much longer do Renewal batteries last?
    5% less capacity each time?
     
  6. Abugaj01

    Abugaj01 Guest

    That sucks ... considering how much Renewal batteries cost ... plus you only
    really charge 5% of the battery every time ... I think the reason they tell you
    to recharge frequently is so you psychologically think you're getting more out
    of the battery ... I don't think it's actually "recharging".
     
  7. Robert Baer

    Robert Baer Guest

    No; capacity seems to be relatively constant,but then drops fast near
    the end.
     
  8. Robert Baer

    Robert Baer Guest

    Ah... but it does.
    I have some D cells thati use in my radio; i previously used standard
    alkaline.
    20 times the cost of a standard alkaline set is a heck of a lot more
    than a set of rechargeables.
     
  9. JeffM

    JeffM Guest

    how much longer do Renewal batteries last?
    So, RB, is it a linear degradation?
     
  10. Abugaj01

    Abugaj01 Guest

    so which is cheaper per unit of energy? Renewal, NiCd, or NiMH?
     
  11. Robert Baer

    Robert Baer Guest

    Cannot say; have not tried NiMH batteries.
     
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