cooking monkey
100 mW
As a new owner of a electric bike this topic is of interest to me. Knowing the state of charge of my battery seems to be indicated by 5 bars rather than a direct voltage measurement. By what I have read I can stay roughly within the best parameters by unplugging the charger at four bars full and never going into the last bar on the display, on discharge.
Currently my bike display shows 4 bars full of 5, when I pulled the battery off the bike I measured 49.5 volts (fluke) at the battery terminals, this from a bike sitting overnight. My question is, if I take a battery voltage measurement this way and try to map a voltage reading to a bar display do I need to wait a bit after I take it off the charger before measuring the voltage? Do I need some time to let the battery sit either after a discharge, or charge before I can consider my measurement accurate?
Currently my bike display shows 4 bars full of 5, when I pulled the battery off the bike I measured 49.5 volts (fluke) at the battery terminals, this from a bike sitting overnight. My question is, if I take a battery voltage measurement this way and try to map a voltage reading to a bar display do I need to wait a bit after I take it off the charger before measuring the voltage? Do I need some time to let the battery sit either after a discharge, or charge before I can consider my measurement accurate?