BELATRON High-efficiency charging systems for traction batteries

For more than three decades, the name BELATRON has stood for advanced and future-oriented charging technology. The new BELATRON high-efficiency charging systems are not only distinguished by the latest components and attractive housing, but also make an important contribution to climate protection as a result of their excellent energy efficiency.

A:Conventional charger
B:BELATRON high-efficiency charging system

Energy efficiency and CO2 emissions

The subject of energy efficiency encompasses both ecological and economic considerations.

Compared with conventional chargers, BELATRON high-efficiency charging systems reduce the amount of electrical energy consumed during the charging process by 25 %. This leads to reduced energy costs and lower CO2 emissions (see Fig.).

When charging a 48 V – 500 Ah traction battery using a BELATRON high-efficiency charging system on 240 days a year (single-shift operation), the annual saving on electrical energy is approx. 1900 kWh compared with a conventional charger.

When generating the electrical energy required for charging the battery, 0.514 kg of CO2 are released per kilowatt hour. Every kilowatt hour saved reduces the CO2 emissions and therefore contributes to climate protection.

As a result of the energy saved, the CO2 emissions are reduced by 980 kg and are comparable with the CO2 emissions of a diesel-engined car (135 g CO2/km) travelling a distance of 7259 km.

This distance would be equivalent to a car journey to a place of work 16 km away on 230 days a year (return journey 32 km).

Go to the Energyefficiency Calculator: Calculation of needed electrical energy, costs and generated CO2-quantity during the charging of traction batteries.


Further advantages of BELATRON high-efficiency charging systems

Further advantages of BELATRON high-efficiency charging systems


  1. Sinusoidal current consumption and excellent power factor:

    • Reduction of required mains power and therefore investment and installation costs
    • Reduction of peak current values and no increase in the size of the reactive power compensator
  2. Low ripple charging current:

    • Minimises temperature rise during charging
    • Increases traction battery life
    • Reduces service costs (top-up intervals) for battery maintenance
  3. BELATRON high-efficiency charging systems comply with the EMC limits for domestic and industrial areas:

    • BELATRON high-efficiency charging systems can not only be used in industrial areas (as with many competitors´ units) but also in business, domestic and commercial areas
  4. Charge state traffic lights:

    • The battery charge state can be easily determined from a distance thanks to large coloured indicator lights (charge state traffic lights) (from housing size WT60). In smaller units, LEDs provide continuous indication of the current charging state.

Optimised ventilation concept

Optimised ventilation concept

Ventilation concept

Particular importance has been placed on a new ventilation concept in the development of the new housing. Air is now fed in and discharged in a horizontal direction over the central heat sink at the rear of the BELATRON high-efficiency
charging system only.
Electronic components are generally encapsulated and located away from the main air flow in order to prevent corrosion and/or contamination damage.

BELATRON high-efficiency charging systems are naturallyventilated up to an output power of 1200 W (24 V – 50 A).