I'm reading that a good fully charged battery should be at 12.3 V resting. My battery has been sitting on a smart charger and maintainer and says 12V only and the charger
![Auto cut off 6 V 12 V 24 volt battery charger using MOSFET | diy Electronics project | TL431|IRFZ44N - YouTube Auto cut off 6 V 12 V 24 volt battery charger using MOSFET | diy Electronics project | TL431|IRFZ44N - YouTube](https://i.ytimg.com/vi/QngqkzOV9bw/maxresdefault.jpg)
Auto cut off 6 V 12 V 24 volt battery charger using MOSFET | diy Electronics project | TL431|IRFZ44N - YouTube
![MSW Heavy Duty Car Battery Charger S-Charger-20A (Cooling system, 12/24 V Charging voltage, 8/12 A Charging current, 12-200 Ah batteries, 500 W, adapted charging power MIN/MAX, compact): Amazon.co.uk: Automotive MSW Heavy Duty Car Battery Charger S-Charger-20A (Cooling system, 12/24 V Charging voltage, 8/12 A Charging current, 12-200 Ah batteries, 500 W, adapted charging power MIN/MAX, compact): Amazon.co.uk: Automotive](https://m.media-amazon.com/images/I/61vD4Iz8oML.jpg)
MSW Heavy Duty Car Battery Charger S-Charger-20A (Cooling system, 12/24 V Charging voltage, 8/12 A Charging current, 12-200 Ah batteries, 500 W, adapted charging power MIN/MAX, compact): Amazon.co.uk: Automotive
![Charging 24V Battery with 12V Alternator and Isolator - Motor Vehicle Maintenance & Repair Stack Exchange Charging 24V Battery with 12V Alternator and Isolator - Motor Vehicle Maintenance & Repair Stack Exchange](https://i.stack.imgur.com/muVml.jpg)