Unfortionately I stated in a couple of posts that any cheap multimeter is fine to check charger/battery voltages. I just discovered that some of the cheap offers have +/-1.5% accuracy! Thats +/- 1.26V at 84V! Such equipment is not usable for calibration/measurements! But there are many cheap +/-0.5% available - this are still +/-0.4V. Enough for a rough check and almost about enough for calibration?! One should be consious about this inaccuracy and pay attention, so the chargers voltag
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