DEFA 12V 25A Workshop Charger

DEFA 25A Workshop Charger 12V is portable, durable and user-friendly. It features modern Switch-Mode technology, has excellent efficiency, and uses a temperature compensated charging cycle that protects sensitive electronic systems and battery performance. Designed with a 3-meter cable, a wall bracket, a place to hang the coiled cable and an isolated hook.

With the latest technology, the 25A Workshop charger will give the batteries optimum life. It is well suited to battery sizes up to approx. 500Ah and
can maintenance charge the battery for an unlimited time. The charging voltage is temperature compensated with external sensor.

The charger starts charging the battery with constant current up to 14,4V/14,7V (at 25°C). The charge voltage is then held constant at 14,4V/14,7V and the charging current is reduced until it is below a defined level. The charge voltage then drops to 13.6V, before the long-term charging phase starts. During charging, battery charge is shown by the number of LEDs illuminated. The blinking segment above these LEDs indicates active charging. Once full battery charge is reached, all 5 LED segments remain illuminated. If the measured battery voltage is below 2V, the charger will enter Error Mode.

25A WORKSHOP CHARGER FEATURES

• TEMPERATURE BASED VOLTAGE COMPENSATION
  The charger automatically adjusts the charging voltage to the correct level according to the ambient temperature. The default
  ambient temperature is 25°C. Voltage is reduced for higher ambient temperatures and increased for lower ambient temperatures.
  The correct amount is ±0.03V/°C. Max temperature compensate charging voltage is 15.3 V.
• 14.7V BUTTON
  Some batteries require a higher charging voltage than other batteries. If the 14.7V button is activated the initial charging voltage will
  be 0.3V higher than the standard level. Before activating this button, the 14.7V charge voltage requirement should be confirmed.
  If a battery requires this higher charge voltage, it will be described on the battery
• POWER SUPPLY MODE
  When the charger is turned off the button can be pressed until the LED shines one by one in a regular bottom to the top cycle.
  The charger will be in power supply mode regardless of the battery voltage after it has been turned on, so it can be used to change
  the battery of the car without loosing car settings/data. In this mode, the charger supply 13.7V and max 25 Amp. If the output short
  circuit in this mode, the charger will go into error mode. You should press the power button to turn off the charger, correct the problem,
  then restart the charger (go to charger or power supply mode).
• LONG-TERM CHARGING
  After the battery is fully charged , the charger will deliver 13,6V@25°C with a maximum of 25A.
  This is indicated by all battery LEDs slowly pulsating.