Lithium Battery Charger Product Specifications

Handheld lithium battery chargers must meet general safety requirements, with an AC input voltage range of 85% to 110% of the rated value. Electrical safety requirements include an insulation resistance of not less than 2 MΩ, insulation strength requirements of 1500V AC voltage between the primary circuit and the casing, and between the primary circuit and the secondary circuit, and 500V AC voltage between the secondary circuit and the casing, with automatic output short-circuit protection. Regarding structural and environmental adaptability, the cross-sectional area of ​​the power cord should be not less than 0.75 mm², the surface temperature rise of the casing should be less than 50℃, and the flammability rating of the casing and printed circuit board materials should be V-2 or better. They must pass a 1m drop test and a 2-day damp heat test at 40℃ and 93% relative humidity. The design must prevent reverse battery polarity connection and forced charging/discharging, and must not catch fire or explode under abnormal operating or malfunction conditions.

From November 1, 2025, lithium battery chargers for electric bicycles must comply with GB 42296-2022 "Safety Technical Requirements for Chargers for Electric Bicycles" and complete CCC certification. The new national standard requires the use of a dedicated interface with "two power pins + four communication pins (2+4)" and "mutual recognition and coordination" functionality. This means that the charger and battery must confirm parameter matching through communication handshake before the main power circuit is connected, and the no-load output voltage is limited to below 42.4V. Mainstream product specifications primarily use 48V and 53V voltages, with currents mainly ranging from 2-4A, and power concentrated in the 100W-150W range. The industry shows a trend of consolidation among leading companies, with companies possessing a large number of certified products including Powerland, Sanshi, and JURRY. Specific product examples include: the Ninebot 210W charger (model DZL483004), with a rated output voltage of 53.0V and a rated output current of 4.0A; the Ninebot 480W charger (model DZL483006), with a rated output voltage of 48V and a maximum output current of 15A; and the Niu 150W electric scooter charger (model DZL482002), with a rated output voltage of 52V and a rated output current of 3A.

Other product specifications for application areas include: the SoftBank ALDEBARAN robot lithium battery charger (model ALDE410000A05), supporting a wide voltage input of 100-240Vac, with an output voltage of 29.2V and an output current of 8A; and the Cloud Depth robot lithium battery charger (model C300), supporting a 100-240Vac input, with an output voltage of 33.6V and an output current of 5A.