[HN Gopher] Show HN: NiMH Battery Tester
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       Show HN: NiMH Battery Tester
        
       Author : MarkusWandel
       Score  : 4 points
       Date   : 2021-03-07 16:33 UTC (6 hours ago)
        
 (HTM) web link (github.com)
 (TXT) w3m dump (github.com)
        
       | MarkusWandel wrote:
       | There are other Arduino powerered battery testers, but this one
       | is mine. I took some trouble with the documentation.
        
       | zelon88 wrote:
       | This is really, really cool. I might actually build one, but for
       | SubC cells. I just bought a new 7c 5000mah NiMH pack yesterday
       | for my Tamiya High Lift crawler because my old 5000mah is
       | starting to go. I got about 3,000mah out of my last run according
       | to my charger.
       | 
       | But my charger has no discharge function, and if charging takes
       | over 90m I must write down the MAH and restart the charger to
       | start from 0. It can be frustrating. Your device would be very
       | useful for me.
        
         | MarkusWandel wrote:
         | Keep in mind this device relies on having access to each cell
         | individually with all the negative ends being on a common
         | ground. Battery packs, even with balancing connectors, usually
         | have the cells hardwired in series.
        
           | zelon88 wrote:
           | This is true but battery bars can be removed. I've got enough
           | 5000mah SubC packs with one bad cell that I could probably
           | make an entire good pack.
        
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       (page generated 2021-03-07 23:03 UTC)