Stecamat 820

Processor-controlled charger for lead batteries


The Stecamat 820 battery charger is available in a lightweight, compact housing. The battery is charged gently and quickly by the processor-controlled charging process. By setting the nominal capacity, the current, voltage, time and ideal monitoring of the battery can be individually adjusted. This also allows for pre-damaged or deeply discharged batteries to be treated, making a long service life possible with the Stecamat 820. A light-emitting diode provides quick information about the charging status.
The extensive equipment ensures maximum flexibility in use. This equipment and the easy operation, even with gloves, ensure seamless operation.

Stecamat 820 technische Zeichnung


Product features

  • Half the charging time compared to simple, non-controlled chargers with the same rated current
  • Optimal for charging batteries with liquid electrolyte and gel / absorbed electrolyte (AGM)
  • Adjustable rated capacity determines the charging current
  • Suitable for totally discharged batteries
  • Constant battery operational readiness through integrated trickle charge
  • Ready for operation in just a few minutes
  • Charging below the gassing voltage
  • Optimal charging of damaged batteries

Electronic protection functions

  • Protection in the case of wrong or damaged batteries
  • Battery overcharge protection
  • Charger output protected against short circuits, reverse polarity and overvoltage


  • Multi-coloured LED shows operating states


  • Adjustable rated capacity via rotary switch


  • Control contact for ventilation control system in accordance with DIN EN 50272


  • IO box with mains plug and relay for ventilator control


  •  Stecamat 820 certificate CE · pdf · 0.832 MB
  •  Stecamat 820 productdatasheet DE · pdf · 0,964 MB
  •  Stecamat 820 productdatasheet EN · pdf · 0.963 MB
  •  Stecamat 820 manual Stecamat800_Manual_DE_ · pdf · 3.813 MB
  •  Stecamat 820 manual EN · pdf · 3.261 MB
  •  Stecamat 820 product pic drawing · jpg, 300 DPI, high quality · 0.888 MB
  •  Stecamat 820 product pic drawing · jpg, 72 DPI, web quality · 0.380 MB

Technical data

Charging rated voltage
12 V
24 V
48 V
Charge current
50 A
35 A
18 A
End-of-charge voltage
14.4 V
28.8 V
57.6 V
Trickle charge voltage
13.8 V
27.6 V
55.2 V
Characteristic curve
Grid voltage
230 V AC ±10 %
Frequency range
50 Hz (45 Hz … 65 Hz)
Mains electricity (230 V)
3.7 A
5.5 A
5.5 A
Discharge current during grid failure
1.0 mA
Protection class
Degree of protection
IP 20
Ambient temperature
-20 °C … +60 °C
Cooling principle
regulated fan
Dimensions (X x Y x Z)
248 x 429 x 128 mm
6.0 kg
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