Citycoco lithium-ion batteries absolutely require a dedicated special charger, and universal or mismatched chargers will cause irreversible damage to battery performance and service life. Almost all Citycoco scooters are equipped with 16-series lithium battery packs (16S Li-ion), with a rated voltage of 60V and a standard full-charge floating voltage of 67.2V. This specialized voltage parameter is the core reason for requiring a dedicated charger. Ordinary universal 60V chargers usually have a fixed output voltage of 60V, which cannot fully activate the battery cell capacity, leading to chronic undercharging, reduced range, and accelerated battery capacity attenuation over time. Conversely, high-voltage chargers exceeding 67.2V will cause overcharging, battery bulging, thermal runaway, and even fire safety hazards.

The official dedicated Citycoco charger is a smart CC/CV (constant current and constant voltage) lithium battery charger with precise voltage regulation and intelligent charging mode switching. In the early charging stage, it maintains constant current fast charging to improve efficiency; when the battery voltage approaches 67.2V, it automatically switches to constant voltage trickle charging to balance the voltage of each battery cell, eliminate cell pressure differences, and protect the battery management system (BMS). Professional dedicated chargers are also equipped with multiple safety protection functions, including over-current protection, over-voltage protection, short-circuit protection, over-temperature protection, and reverse connection protection. These protection mechanisms are perfectly matched with the Citycoco battery BMS system, effectively avoiding charging failures and safety accidents caused by abnormal power supply or circuit fluctuations.

Different capacities of Citycoco 60V batteries correspond to matched special charger currents: 2A chargers for 12Ah–20Ah batteries, 3A–5A fast chargers for 30Ah–40Ah high-capacity batteries. Using a low-current charger for a high-capacity battery will lead to extremely long charging time and insufficient full charge, while a high-current charger for a small-capacity battery will cause excessive charging current, heating, and shortened battery cycle life. Lead-acid battery chargers are completely incompatible with Citycoco lithium batteries, as their charging logic and voltage curves do not match lithium cell characteristics, easily causing battery scrapping after several charges. Even third-party certified chargers must strictly meet the 67.2V voltage standard and lithium battery charging protocol to be used as alternatives. Long-term use of dedicated chargers can maximize the Citycoco battery cycle life (up to 800–1000 charge cycles) and maintain stable discharge performance.