I'm getting an unexpected voltage from a voltage divider I created. Is it likely that the resistor values are too high to provide enough current for my multimeter to measure accurately, or do voltage dividers behave unexpectedly with high resistor values?
I'm trying to measure the voltage of the battery but I need to bring the voltage down to below 3.3V as that's all the analogue input of my MCU can tolerate. I created a voltage divider as above. I expected it to reduce the voltage to 1/11 of the battery voltage (~0.67V) but my multimeter is reading 0.35V. I'm wondering if 100K is too high and it's not providing enough current for my multimeter to do it's job. Also interested in any other suggestions. I could reduce the resistor values if that's likely the issue but understood that lower values result in more power consumption.