A N G D I

Can Chargers for Lead-Acid Batteries and Lithium Batteries Be Used Interchangeably?

2026/02/08 09:11:45

As the replacement of lead-acid batteries with lithium batteries accelerates, some people who switch from lead-acid battery electric vehicles to lithium battery ones often wonder: Can the original lead-acid battery charger be used for lithium batteries? Relevant data shows this is not feasible.

Lead-acid battery chargers are generally designed with a two-stage or three-stage charging mode, and the voltage levels of lithium batteries are incompatible with those of lead-acid batteries. Additionally, there are many types of lithium batteries, with varying battery performance and parameters of their battery protection boards. Unlike lead-acid batteries, lithium batteries do not have universal chargers. Typically, lithium batteries come with a dedicated charger when manufactured. To protect lithium batteries, only the matching dedicated charger should be used.


The following are important precautions for charging lithium batteries:

  1. To extend the lifespan of lithium batteries, charge and discharge them regularly. Develop the habit of charging the electric vehicle after using 80% of the battery power; do not wait until the battery is completely drained. Furthermore, never store lithium batteries for long periods without charging.
  2. When charging the electric vehicle battery, turn off the power lock and do not place the battery upside down. Charge it fully in one go; avoid multiple short charging sessions.
  3. Batteries should not be stored in a depleted state. Therefore, when the battery is not in use, charge it to full capacity once a month.
  4. Use the matching charger when charging lithium batteries. Due to differences in raw materials and manufacturing processes, lithium batteries have specific technical requirements for chargers. Only a dedicated charger can maximize the battery’s lifespan and prevent potential safety hazards.
  5. When the lithium battery is out of power, turn off the power and stop riding. Do not drive using the rebound voltage, as this may cause severe over-discharge and shorten the battery life.
  6. When charging the lithium battery of an electric vehicle, after the charging indicator shows full, continue trickle charging for 1 to 2 hours before stopping. Do not disconnect the charger immediately.