What is the voltage of a fully discharged lithium ion battery?

VOLTAGE PER CELL: Lithium-Ion batteries have a nominal voltage of 3.7 volts per cell.

What happens if a lithium ion battery is fully discharged?

When a lithium-ion battery is totally discharged, which suggests discharging below 2.5 volts per cell. there’s a built-in safety circuit which will open and lock the battery. If you plugged your conventional charger into the battery, you would find that it will appear as if the battery is dead to you.

Will a dead battery show voltage?

Cannot reach higher than 10.5 volts when being charged, then the battery has a dead cell. Fully charged (according to the battery charger) but the voltage is 12.4 or less, the battery is sulfated….2) Take a Voltage Reading.

State of Charge	Voltage
75\%	12.4
50\%	12.1
25\%	11.7
Discharged	0 – 11.6

Should lithium batteries be fully discharged?

Lithium-ion batteries should not be frequently fully discharged and recharged (“deep-cycled”). You may need to discharge it fully occasionally to recalibrate the capacitiy measuring electronics in the accumulator.

How low can a lithium ion battery be discharged?

The Li‑ion can be discharged to 3V and lower; however, with a discharge to 3.3V (at room temperature), about 92–98\% of the capacity is used.

Can you discharge lithium ion batteries?

Unlike other types of batteries that need to be recharged throughout their storage time, lithium batteries do better at 40\%-50\% DOD (depth of discharge). Pro-Tip: After every 30 charges, allow your lithium based battery to completely discharge before recharging.

What happens if you over discharge a battery?

When the battery is over-discharged, the internal resistance increases. It discharges 1.5 to 2 times the capacity of the battery making it difficult to recharge them. First of all, you should check the present voltage level of the battery, which is lower than the cut-off voltage.

What does it mean when there is voltage but no current?

When one point is more charged with electric than the other, that’s voltage. If the waterfall is dry and thee is no Current, the difference between two points is still there. One point is higher than the other (one point is more electrically charged than the other). That’s voltage without current.

What voltage is a discharged battery?

Voltage Changes During Discharge. At the end of a charge, and before opening the charging circuit, the voltage of each cell is about 2.5 to 2.7 volts. As soon as the charging circuit is opened, the cell voltage drops rapidly to about 2.1 volts, within three or four minutes.