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|    sci.electronics.basics    |    Elementary questions about electronics    |    72,318 messages    |
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|    Message 71,287 of 72,318    |
|    AK to All    |
|    Re: Charging NiMh batteries when not com    |
|    21 Jun 19 12:47:57    |
      From: scientist77017@gmail.com              On Tuesday, June 18, 2019 at 2:19:29 AM UTC-5, whit3rd wrote:       > On Thursday, June 13, 2019 at 4:26:13 PM UTC-7, AK wrote:       > > The aaa alkaline batteries went out on my tv remote.       > >       > > I decided to use my NiMh UBL aaa batteries. 1100 mAh.       > >       > > They are currently showing 1.31 volts.       > >       > > And they work ok in the remote as is.       >       > Not a surprise; alkaline cells when fresh are 1.5V, but are useful down to       about 1V.       > NiCd and NiMH are 1.2 to 1.4V fresh-charged, useful down to about 1V.       > Li nonrechargeables are 3.6V fresh, useful down to 3.0V (so can replace       > a 4.5V alkaline clock battery, or two in series can replace a 9V which has 6       alkaline cells)       >       >       > > My charger is the manual type.       > >       > > It charges that type at 150 mA.       > >       > > I want them fully charged since they are 1.2 volts versus 1.50 for the       alkaline.       >       > Don't use rechargeables for best shelf life, but for best total life.       >       > Mainly, your remote control is inert (it gets used in subsecond bursts when       you press       > a button). The self-discharge when not in use (and higher purchase price)       make       > rechargeables a questionable fit for that application.              I already had them, so decided to go ahead and use em.              Andy              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
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