AVT977 A +

The main disadvantage of chargers attached to cheaper power tools is too low charging current in the initial phase and too big after charging. The consequence of this is the reduction of battery life.
We present a set that allows you to make a charger, which "intelligence" limits the user's interference only to connect a discharged package. The device allows you to charge batteries with voltages in the range of 7.2 - 18V. It does not have any adjustment and adjustment elements and only LEDs signaling the operating status.
The charger is based on the constant current charging method. The course of the process is supervised by the ATmega series microprocessor.

The device is particularly recommended wherever cordless tools and NiCd batteries are used

Selected parameters:

• voltage range of NiCd 7.2-18V batteries
• capacity of rechargeable batteries - 1.5 - 2.5Ah
• charging time <3h
• completion of the charging process based on the dV / dt measurement
• conservation recharge cycle
• operation status indication - LED diodes, buzzer
• protection against reverse connection and shorting of output terminals
• power supply - 230Vac
• a printed circuit board, programmed layout and documentation in the set
  Detailed description in EP 4/07