Electro Service (india) Is A Leading Manufacturer Of Smps Battery Chargers And Battery Manufacturer In Kolkata. Initially, We Started Our Operations By Manufacturing Transformers Required For Different Industrial Applications. However, We Have Improved Our Product Base Within A Very Short Period. We Have Started Manufacturing Ev Battery Chargers, E-rickshaw Chargers, Float-cum Boost Chargers, Smps Power Supply, Vcb Battery Chargers, Dcdb & Acbd And Control Transformers. We Have A Large Customer Base Within Different Industry Ranges. Within A Very Short Time, Esi Has Earned A Positive Reputation Concerning The Delivery Of Different Electrical Products.