Looking at the table or chart, you’ll see that a battery with a voltage of 1.5 has a discharge rate of 750mAh. The Antigravity Battery normal voltage is 13.2V. A more accurate method is to measure the specific gravity of each cell within the battery. Tests all 12V Lead-acid and 12.8V / 13.2V LiFePO4 (LFP) Lithium batteries and displays result that can be used to convey information as to the state of charge. Based on this, a charge voltage range between 13.8V and 14.7V is sufficient to charge any battery without causing damage. We have a 4-amp and an 8-amp charger. Subjecting the battery to a constant charging current above the “max charge” current stated on the label. Properly manufactured Lithium Batteries are safe. I found on ebay a 9$usd 12V 24V 36V 48V Battery Charge Automatic Charging Controller Protection Module We do offer two brands of Lifepo4 chargers: our Antigravity brand and the Optimate brand. The typical charging voltage is between 2.15 volts per cell (12.9 volts for a 12V 6 cell battery) and 2.35 volts per cell (14.1 volts for a 12V 6 cell battery). No. ... On the lower end of the voltage range the battery should be put on a charger if the battery voltage gets drops below the 12.5V range while sitting. It will depend on the application you use the vehicle in. While on float charge, lead acid measures about 2.25V/cell, higher during normal charge. I have combined them a few times, then manually started equalization. The nominal voltage of lead acid is 2 volts per cell, however when measuring the open circuit voltage, the OCV of a charged and rested battery should be 2.1V/cell. The maximum charging rate will depend on the battery model, and can be found on the battery’s front label. Easily monitor your battery status through your phone using our App. Carl, Thanks Carl, and as you insinuated, there are variables, including temperature compensation measurements and others. I am using a trace C12 solar charge controller. Measure the battery’s chemistry (specific gravity) with a hydrometer (accurate method). They prevent the vehicle from draining the battery below 8 volts during cranking. For really serious work advisable to take temperature of the battery acid for standard lead acid batteries. So don't use that charger. This can be dangerous. See your battery manufacturer recommendations regarding charging. So between 50F and 80F could have a 10% difference in charge state. The reason is that lead-acid chargers will tend to overcharge a lithium battery. Voltages and Specific Gravity are listed for a 6-volt or 12-volt battery, and battery banks of 24 and 48 volts. I put together the following battery state of charge chart which indicates the state-of-charge (percent) as it relates to battery voltage or specific gravity. As long as the battery fits into the battery tray of your bike and can be connected correctly and safely a larger size will not hurt the bike but just allow for more Power and Capacity in Amp hours. Just installed 2 24 volt reconditioned fork lift batteries in my 48 volt system. If the gravity of each cell stays relatively the same (usually all in the green) does that mean that I don’t need to equalize that battery? Measure its voltage with a volt meter while open-circuit, no load (general approximation). Whereas the Small Case battery has a balancing circuit board inside but does not have the low-voltage cut-off and overcharge and over-discharge protections of the Restart battery. Not sure if I understand your question, however I would suggest that if fully charged batteries are just sitting there not being used and they are dropping to 85% in just 2-days, then those batteries are probably end-of-life. So thanks for the chart good information. 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