Universal chargers can usually charge multiple types of batteries, but the correct voltage and current need to be set when charging, otherwise it may lead to insufficient charging or damage to the battery. For lithium batteries, some universal chargers can usually be charged, but the correct voltage and current must be set to ensure the charging effect and charging safety. Therefore, it is recommended that according to the model and rated parameters of your lithium battery, choose a universal charger that is compatible with your battery, and refer to the user manual or relevant guidelines of the charger before charging to correctly set the charging parameters.
You can't. Universal chargers are generally suitable for many types of chargers, but are not suitable for all types of batteries. Lithium-ion batteries have special charging requirements and require special chargers for charging. If you use a universal charger to charge lithium-ion batteries, it may cause battery damage, overcharge or overdischarge problems, which will damage both the battery and the device. Therefore, if you need to charge a lithium-ion battery, you should choose a specialized lithium-ion battery charger for charging.