![]() ![]() maybe I should add an output filter, I am considering that since I purchased it. My small PSU is from R&D (as seen here ). this is not the scope of the discussion, but I respect your point and I am willing to confirm my multimeter`s calibration. It has not been calibrated lately (like in the past 10+ years), but if you really need this, I can drop by a friend this week and have him test my mini-supply and my voltmeter. My multimeter might have a 0.01~-0.02 volts offset, but I am positive that it measures correctly. measuring the battery voltage while it is being charged shows the same offset. Can this voltage offset be caused by some charging circuitry/component? I find it very odd since the nimh batteries end up in over-temp every time. There are no clarifications about any stages etc. it states it measures the battery voltage. The imax manual is very thin on all aspects. anyone has any schematics or advice on what might cause this or how can it be fixed? Thank you! Should that be ok? Anyway, I haven`t opened the charger so far and I hope I won`t find dragons inside. that will end to 136ohm, it will eat up to 300mA and dissipate about 103mW/5 resistors. I`ll probably buy 30 pieces of 680-ohm, 1% resistors and solder them 5p6s (or. I will try to perform a calibration with a 25.2 voltage source and 6 identical resistors in series (eventually also in parallel to try and avoid resistance manufacturing error / tolerance). ![]() Anyone has any idea what might cause this and how can it be fixed? (either hardware or by calibration). I had not tested individual cell voltage readings, but I hope to be able to also do that. I`ll make a better measurement in the afternoon, at every 0.25V. Here`s a link with every check: It seems the charger has an offset of -0.20V at 0.20V which gradually decreases as the voltage grows: I instantly measured the output of the iMAX charger and i noticed about 0.15V at 1.5V. it stated 1.34V and later on when I put it into my Liitokala charger, I see 1.48V. measured 53*C with vellman multimeter (iMAX overtemp set to 50*C). The problem is so annoying that every NiMH cell charging / repeaking / etc stops with "overTemperature" error. Hello all, I do have a problem with my most recent charger - iMAX B6 mini. ![]()
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March 2023
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