A battery charger or recharger is a device used to put energy into a secondary cell or rechargeable battery by forcing an electric current through it.
The charging protocol (how much voltage or current for how long, and what to do when charging is complete for instance) depends on the size and type of the battery being charged. Some battery types have high tolerance for overcharging (ie, continued charging after the battery has been fully charged) and can be recharged by connection to a constant voltage source or a constant current source, depending on battery type. Simple chargers of this type must be manually disconnected at the end of the charge cycle, and some battery types absolutely require, or may use a timer to cut off charging current at some fixed time, approximately when charging is complete. Other battery types cannot withstand over-charging, being damaged (reduced capacity, reduced lifetime) or overheating or even exploding. The charger may have temperature or voltage sensing circuits and a microprocessor controller to safely adjust the charging current and voltage, determine the state of charge, and cut off at the end of charge.

A trickle charger provides a relatively small amount of current, only enough to counteract self-discharge of a battery that is idle for a long time. Slow battery chargers may take several hours to complete a charge; high-rate chargers may restore most capacity much faster, but high rate chargers can be more than some battery types can tolerate. Such batteries require active monitoring of the battery to protect it from overcharge. Electric vehicles ideally need high-rate chargers; for public access, installation of such chargers and the distribution support for them is an issue in the proposed adoption of electric cars.

Salient Features of Industrial Battery Charger

  • Soft start
  • Battery Path Current Limiting
  • Float & boost Changeover
  • Built in Auto regulation controlled circuit
  • Overload protection
  • Short-circuits protection
  • Insulation Class for magnetic as per IS standard
  • Powder coated paint as per IS/RAL standard
  • Customizable as per requirement
DC System voltage 12V 24V 36V 48V 72V 96V 110V
Rating (A) 1-50A 1-50A 1-50A 1-50A 1-50A 1-50A 1-50A
Input 220VAC ± 20%,  1 phase 3 wires, 50Hz, Pf 0.8 Lag
Cooling Air Natural Cool system
Voltage stability 0.5%
Ripple Voltage 100mv Max
Line/Load Regulation 2%
Current Limitation Constant Voltage/ Current
Power Walk time Soft less than 10 second

Protection type depend of Type and capacity

Over Load Protection by Current Limit, Short circuits Protection by Current Limit, Battery Reverse Polarity Protected by Fuse, Input Protected by Circuit Breaker. Input Over Voltage Protection, Input Under Voltage Protection

Output over Voltage Protection, Output under Voltage Protection


Display  depend of Type and capacity

Output Voltage Meter, Charger Current Meter

Output Current Meter, Input Voltage Meter

Mains on LED, Output on LED

Charger on Float LED, Charger on Boost LED

Mains Fail LED, Output under Voltage LED

Output over Voltage LED, Charger Fail LED

Battery Low LED, Charger overload

Ground Fault –Ve LED

Ground Fault +Ve LED

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