What are the advantages of lithium battery electric locomotives?

What are the advantages of lithium battery electric locomotives? Or what are the advantages of lithium batteries over lead-acid batteries?

The advantages of lithium batteries are convenience, environmental protection, safety, long life and good performance.

Convenience: Daily maintenance is simple, no need to add electrolyte. And the charging speed is fast, charging for two hours and working for eight hours.

Environmental protection: Ordinary lead-acid batteries will volatilize acid gas during use, and will also produce a certain amount of other toxic and harmful gases when charging. Lithium batteries do not.

Safety: First, the above-mentioned will not produce harmful gas. Second, there will be no outgassing phenomenon. The third is that the BMS effectively manages the battery pack.

Long life: the cycle life can reach more than 3000 times. According to the frequency of charging once or twice a day, the expected service life of lithium batteries can reach 5-8 years.

Good performance: In addition to the above-mentioned fast charging and long life. The lithium battery has a high discharge rate and good power performance.