ENERJITEM Three-Phase Rectifier for NiCd Batteries, NiCd Battery Charger, with Input Voltage 380V AC / Output Voltage 110V DC, 100 Ah, Without Batteries

ENERJİTEM Three-Phase NiCd Battery Rectifier, NiCd Battery Charger, 380 VAC Input / 110 VDC Output, 100 Ah, without batteries

A NiCd battery charger, also known as a nickel-cadmium battery charger, is an electronic device that controls current and voltage, designed to safely charge rechargeable batteries or battery packs with NiCd chemistry. For NiCd batteries to have a long operational life, the output values of the charger, i.e., the rectifier, must be precisely adjusted according to the battery's amp-hour capacity and the number of cells.

How does a NiCd battery charger work?
Due to their composition, NiCd batteries require constant current charging. The charging process consists of the following stages and principles:

Constant Current Phase: The charger maintains a constant current until the battery is charged. The battery voltage gradually increases during charging.

Cell Voltage Monitoring: The nominal voltage of NiCd cells is approximately 1.2 V. During charging, this voltage reaches 1.4 V to 1.45 V per cell.

Charge Termination Methods, Delta V: When NiCd batteries reach full charge, a slight decrease in voltage occurs. Smart chargers terminate charging or switch to float charge mode when a -ΔV curve, i.e., negative delta voltage, is detected.

Temperature Monitoring, ΔT / Δt: Fully charged NiCd batteries start converting energy into heat. Safe devices detect the sudden temperature rise and cut off the current.

How should the rectifier output be according to the battery's amp-hour capacity?
There is a direct mathematical relationship between the amp-hour capacity of NiCd batteries and the output current values in amperes and voltage in volts in an industrial rectifier.

Conclusion
To charge a NiCd battery, the rectifier must have a constant current mode, and the output current should be set to 10% of the battery's amp-hour capacity (0.1C). The total output voltage should be determined so that it does not exceed the number of series-connected cells × 1.42 V.

Two-year warranty.

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