Carregador de Bateria Portátil Defa Smartcharge 4A

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SmartCharge 4A is ideal for maintenance charging of any type of 12V lead/acid battery. It automatically adapts charging to the charging level, size and temperature of the battery. The display is intuitive and the cables and clamps are easy to fasten, making it compact and easy to store in your vehicle or garage.


Easy to use


Connect the charger, press “ON” and the charger does the rest, automatically optimizing charging for your battery.




SmartCharge 4A is completely secured against sparks, short-circuiting and reverse polarity. The automatically regulated charging curve optimizes charging and protects the battery.


Power supply


A built-in Power supply mode makes it possible to keep your vehicle powered while you replace the battery. Activate this function by pressing and holding the ON button for 5 seconds. Once activated, the charger will automatically provide 13,6V. This is indicated by the LEDs blinking in sequence from the bottom to the top.


Test and award wins


Chargers in the SmartCharge family have been crowned the best car charger by the Finnish motoring magazine Moottori, and the best boat charger in a test published in several Nordic magazines, including the Finnish KM and the Norwegian Båtmagasinet. It has also received the Award for Design Excellence and the Design for All awards from Norwegian Design Council, now DOGA. In all cases, SmartCharge received top marks for combining first-class results with a user-friendly interface and an automatic charging curve that makes charging batteries easy for all types of users.




Detachable accessories make SmartCharge even more user-friendly. Monitor your battery status or mount the charging cable to the battery permanently. See related products.


Features – SmartCharge 4A:


Simple and user-friendly interface and display.

Automatically adapts charging to your battery.

Built-in Power supply mode.

Battery status monitoring in the display.

Secured against short-circuiting and reverse polarity.

Integrated cable storage solution.

Will not overcharge your battery.

Temperature compensated charging.




DEFA AS conforms to the requirements of both ISO 9001- 2008, ISO 14001:2004 and OHSAS 18001:2007. In addition, our engine heaters and cables conform to the requirements of ISO/TS 16949:2002.


Input voltage 230V AC, 50-60Hz

Charge power, max 60W

Inverse current < 1mA

Output voltage 14,4 / 14,7V DC

Operating temperature -40°C / +40°C

Cooling Air

Type of batteries All types of lead/acid, AGM and GEL, open and closed.

Battery capacity 2-110Ah

IP rating IP65

Isolation class II

Size 210x90x54mm

Weight 0,735kg

Certification(s) EN60335-1, EN60355-2-29, EN 61204-3, EN61000-3-3, EN61000-3-2

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