First appearance with high accuracy and reliability. Fnirsi HRM-10 Battery internal resistance meter 

Sorry for the error in the battery internal resistance calculation formula in the video. I watched the video again and the recipe I wrote down was a little wrong. The exact formula is: r=((V-Vt)/Vt) x Rt . That is, the quotient must be multiplied by the load resistance value, not divided by the load resistance value as shown in the video. We are very sorry for this confusion.
- You can see the price and order the Fnirsi HRM-10 Battery Internal Resistance Tester here: shorten.asia/k...
- Or here: s.click.aliexp...
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