be careful! Lithium batteries and lead-acid battery chargers can not be universal!

As the process of lithium battery replacing lead-acid battery is accelerating,

Some people buy lead-acid battery electric vehicles and then switch to lithium battery electric vehicles,

In terms of charging,

I can't help wondering:

Can the previous lead-acid battery charger be used to charge lithium batteries?

Can lead acid battery charger charge lithium battery?

may not!

Lead acid battery and lithium battery charger can not be universal!

This is because——

The lead-acid battery charger is generally set to two-stage or three stage charging mode, and the voltage level of lithium battery and lead-acid battery does not match. Moreover, there are many kinds of lithium batteries, and the battery performance and battery protection board parameters may be different.

So lithium batteries don't have a universal battery charger like lead-acid batteries.
iPhone Charger Cable
Generally speaking, lithium batteries are equipped with special chargers when they leave the factory. In order to protect lithium batteries, it is best to use the corresponding special chargers for lithium batteries.

Lithium battery chargers have high requirements for chargers and need to protect the circuit, so lithium battery chargers usually have high control precision, which can charge lithium batteries with constant current and constant voltage.

Lithium battery charging control is to charge according to the constant current, and then when the battery voltage rises to 4.2V, the voltage will not rise, the charger will detect the current, if the current is less than a certain value, the charging will end.

The lead-acid battery is relatively durable and does not require high charging circuit. Once in a while, overcharge and overdischarge will not lead to battery damage, and the structure of charger is relatively simple.
iPhone 12 charger cable
Lead acid batteries are usually charged in three stages, namely constant current, constant voltage and trickle. If the LED of charger is red, it means that it is in constant current or constant voltage stage; if it turns green, it means that it is in trickle stage. Usually, the battery can't be fully charged until it turns green and recharges for several hours.

Generally speaking,

Lithium battery chargers for lead-acid batteries will be under charged,

Lead acid battery chargers for lithium batteries will overcharge.


Lithium battery and lead-acid battery chargers for electric vehicles are not universal.


We have to choose a special charger to charge the corresponding battery,

Avoid mixing,

In order to avoid potential safety hazards or accidents.