home bbs files messages ]

Forums before death by AOL, social media and spammers... "We can't have nice things"

   sci.electronics.basics      Elementary questions about electronics      72,318 messages   

[   << oldest   |   < older   |   list   |   newer >   |   newest >>   ]

   Message 71,276 of 72,318   
   whit3rd to All   
   Re: Charging NiMh batteries when not com   
   18 Jun 19 00:19:26   
   
   From: whit3rd@gmail.com   
      
   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.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

[   << oldest   |   < older   |   list   |   newer >   |   newest >>   ]


(c) 1994,  bbs@darkrealms.ca