Single Cell LiPo Battery Care
How Much Power is Left?
You might be asking yourself, how much power is left in my LiPo battery? This is useful to ensure that you have enough charge to power your project or storing the LiPo battery.
Multimeter
One way to check the voltage of a LiPo battery is using a multimeter. You can set a multimeter to measure the voltage and connect to the terminals of the JST connector. Of course, you can also connect to the +VBATT and GND pins on a PCB if the battery is connected to a board as well. Just be careful not to accidentally create a short between the two terminals when measuring with the probes.
LiPo Fuel Gauge
Another method is using a dedicated LiPo Fuel Gauge to output the voltage and charge remaining on a display. You are less likely to short the battery terminal pins using a LiPo Fuel Gauge (assuming that you are connecting a LiPo battery to the LiPo Fuel Gauge's JST connector or have it soldered to the PTH) compared to using a multimeter. Below are a few LiPo Fuel Gauges that you could use.