CGEAMDY Battery Meter, DC 12V 24V 36V 48V Battery Capacity Indicator with Alarm, Lead Acid and Lithium Ion Voltage Monitor Indicator, Suitable for Car, Golf Cart, RV, Marine(Blue)

I bought this to monitor my battery on car as been having draining issues, display is clear and seems to work well, time will tell and I’ll update review as necessary. There is no instructions supplied, there is only 2 buttons and the right one just cycles through voltage, percentage of battery and off. The left button however doesn’t seem to do anything and without instructions a bit pointless. Also I would advise only plugging the power lead in if you dont want to take it out again as once plugged in you can not remove it without breaking it. I had to break the plug and solder wires directly onto the circuit board to get it to work again.