Charging Model: VOLVO Products charger via computer control technology ESD5550, optimize the Wsa + Pulse charging curve ESD5500, charge current with battery charging voltage increases automatically fall; combined with the late charge pulse charging, so Charging better results. Using the principle of capacity balancing intelligently determine adequate battery ESD5500E, ensure adequate battery - that does not charge less, but also charge, charging both charging parameters dynamically tracking adjustment and perfect protection. Charger Model: 3803639 has transformer overtemperature, module overtemperature fault protection and alarm functions; with automatic detection, delay start, soft-start function; with manual or automatic equalization charging function, to ensure the consistency of battery cell capacity ; beginning with automatic charging function; with desulfurization charging function; charging halfway unplug the charger plug charger automatically shut down. ESD5500 | ESD | faithful electromechanical provided by the Dongguan City, South City Zhongxin Electrical and Mechanical Services Department. Dongguan City, South City Zhongxin Electrical and Mechanical Services Department (zhongxin888.net.cn) strong, credible, in Dongguan, Guangdong and other industrial products industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the faithful into the brilliant electromechanical and you work for a better future!