To ensure safety, what characteristics must the lithium-ion battery charger have?

Generally speaking, lithium-ion batteries have limited electrical safety limits. Due to the characteristics of lithium-ion batteries, when the battery voltage rises to the highest set voltage during charging, the charging should be stopped immediately to avoid the danger of the battery being damaged due to overcharging; when the battery is powered (discharged), if the battery voltage drops to The discharge must be stopped below the minimum set voltage to avoid reducing the service life due to over-discharge.

In addition, in order to ensure the safety of the battery, the lithium-ion battery must also be installed with short-circuit protection to avoid danger; even though most lithium-ion batteries have a protection circuit installed, however, choose a high-quality charger or mobile power supply This is still an important consideration.

1. The first safety of lithium ion battery charger
   The charger is a device that charges the battery to its rated voltage, and the lithium-ion battery charger must have the following characteristics:
2. Can provide a fixed current to the rechargeable battery
   When the battery voltage reaches the maximum value and no longer rises, its charging current will start to decrease, so as to avoid overcharging the battery and causing battery damage; when the charging current drops to a certain level, the charger will stop charging.
3. Make sure the battery has a usable voltage
   After the battery is charged, if it is left unused for a long time, it will naturally discharge. To avoid excessive self-discharge of the battery, the battery voltage will drop. When the battery voltage is lower than the set voltage, the charger will restart charging the battery. , To ensure that the battery can still maintain a certain voltage when in use.

The types of rechargeable batteries can be divided into: nickel-cadmium battery charger, nickel-metal hydride battery charger, nickel-zinc battery charger, lead-acid battery charger, lithium battery charger, etc.

So we need to use the corresponding battery charger to charge the battery, 3.7v li ion battery charger.

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Created on Jun 5th 2020 03:25. Viewed 234 times.

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