I. Industrial/High-Power Smart Chargers   1) Shenzhen Chengdian Xinsheng Technology Co., Ltd. (Shenzhen Bao'an District) • Power: 30W～1800W, specializing in smart chargers for robots/AGVs/floor scrubbers/sweepers • Battery: Lead-acid, ternary lithium, lithium iron phosphate; IP67 waterproof, wide temperature range -20℃～+60℃ • Certifications: ISO9001, CE/FCC/RoHS; 2-year warranty, OEM/ODM customization • Suitable for: Industrial robots, cleaning equipment, outdoor lithium battery equipment   2) Shenzhen Hengjunfeng Technology Co., Ltd. (Shenzhen Bao'an Fuyong District) • 15 years of R&D and manufacturing experience in power supplies/chargers, specializing in stage lighting power supplies + smart chargers for cleaning/logistics equipment • Products: Chargers for floor scrubbers, sweepe...

1. Core Definitions and Differences in Battery String Count (Most Fundamental Difference) • 54.75V: This is the full-charge voltage of a 15-cell lithium iron phosphate battery pack, calculated from the full-charge voltage of a single lithium iron phosphate cell (3.65V × 15 = 54.75V), corresponding to a nominal battery pack voltage of approximately 48V (3.2V × 15). • 58.4V: This is the full-charge voltage of a 16-cell lithium iron phosphate battery pack, calculated similarly as 3.65V × 16 = 58.4V, corresponding to a nominal battery pack voltage of approximately 51.2V (3.2V × 16).   2. Differences in Charging Compatibility and Safety Characteristics • 54.75V: Requires a charger compatible with 15-cell lithium iron phosphate batteries. The charging mode must match the three-stage charging of lithium batteries (constant...

  We are a professional manufacturer of 24V20A lead-acid chargers in Shenzhen, deeply engaged in the field of new energy charging equipment. Relying on advanced high-frequency switching technology and a strict quality control system, we focus on the R&D, production and sales of this model of charger. The product adopts three-stage intelligent charging, with multiple protections such as over-temperature, over-voltage and reverse connection prevention, featuring high efficiency and stable operation. It is widely applicable to electric vehicles, industrial equipment and other scenarios, and can provide customized services, with both quality and cost-effectiveness. Having been deeply engaged in the industry for many years, we have won recognition from customers at home and abroad.