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
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Discharge tests and capacity measurement of 9 volt transistor radio batteries at high current, 100mA to 500mA engineering data
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![Using voltage to determine the state of charge of a lithium battery is not very accurate. There is no more than 0.5 of a volt between fully charged battery and one at Using voltage to determine the state of charge of a lithium battery is not very accurate. There is no more than 0.5 of a volt between fully charged battery and one at](https://www.gorv.com.au/wp-content/uploads/2023/09/Using-voltage-to-determine-the-state-of-charge-of-a-lithium-battery-is-not-very-accurate.-There-is-no-more-than-0.5-of-a-volt-between-fully-charged-battery-and-one-at-40_.jpg)
Using voltage to determine the state of charge of a lithium battery is not very accurate. There is no more than 0.5 of a volt between fully charged battery and one at
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Amazon.com: DROK 12V Battery Capacity Indicator, DC 5V- 66V Lead Acid Battery Percentage Voltage Tester 12V 24V 36V Electric Quantity Volt Detector Meter Panel Gauge Lithium Battery Status Monitor for Car Vehicle :
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