What is the voltage of one third of the charge of a 48V lithium battery?

Introduction The voltage of one-third power of a 48V lithium battery is about 19V. 1. The voltage of the 48V lithium battery should be about 58V when fully charged. 2. The lithium battery terminating charge voltage is

What is the voltage of one third of the charge of a 48V lithium battery?

Approximately 19 V.

1. The voltage of the 48V lithium battery should be around 58V when fully charged.

2. The lithium battery terminating charge voltage is about 1.2 times the rated voltage. 48 V multiplied by 1.2 gives 58 V.

3. 58V multiplied by 1/3 is approximately equal to 19V.

The discharge port voltage of the 48V electric vehicle lithium battery is only 50V (measured after the battery is fully charged and turns green), and the charger outputs 54 V (actual measurement). What is the reason ?

Approximately 58 volts.

The rated voltage is 48V and the rated current is 20A. Through calculation, we can know that in the theoretical state, the discharge capacity of the battery 48V 20 Ah is 0.96 degrees (rated voltage*). rated current * time = 48 V * 20 A * 1 h).

In addition, since the actual charging efficiency cannot reachdre 100%, only 90% to 95%, generally speaking, the actual charging capacity is 1.05 times the discharging capacity, so we can get the actual charging capacity to be about 1 kilowatt hour (0. 96 degrees*1.05). In other words, 48V20Ah only requires 1 kilowatt hour of electricity from no power to full power.

Precautions for charging 48 volt lithium batteries

When charging, first connect the battery, then turn on the power. After fully charging, first disconnect the power, then disconnect the battery and charger. Keep the key cover closed when connecting the battery to the vehicle.

Overcharge danger: Unplug the charger in time after full charging, and do not charge continuously for more than 8 hours.

Do not charge in sub-zero temperature environments. When charging, you must use a dedicated lithium battery chargerie. Roadside fast charging is not permitted. 48, 60 and 72 volt chargers cannot be mixed.

When a 48 volt lithium iron battery is being charged, the actual input voltage is higher than therated voltage< strong>, between 48 volts and 55 volts Therefore, the voltage of a 48 volt lithium iron battery after being fully charged is between 48 volts and 55 volts, which is the normal range, and the maximum voltage is of 55 volts if it exceeds 55 volts, the 48. The 1.2 V lithium-iron battery may be damaged.

It is best to charge for a slightly longer time for the first time, usually 8-12 hours. Because the battery has a renewal process from leaving the factory to being installed in the car and then into our hands, during the renewal period, the battery will have insufficient capacity due toit is discharged, so it must be charged with a charger until it is sufficient. .

Prevent the plug from heating up during charging

A 220 volt power plug or charger output plug loose, oxidation of the contact surface, etc. . will cause the plug to overheat. Heating time is too long, it will cause short circuit or plug contact. If it is defective, it will not only damage the charger but also the battery. It is therefore necessary to prevent the charger plug from heating up when charging and to quickly remove oxides or replace the connector.

It is necessary to partially discharge the lithium-ion battery of electric vehicles and avoid frequent full discharge. Over-discharging can spell disaster for the battery. The consequences of difficulty or repeated over-discharging have a particularly serious impact.nt on the battery.

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