TommaTech® 45A 12/24V 2USB PWM Charge Controller

  • High quality components
  • Complies with UL and VDE quality standards
  • -25 to 55 °C Operating Temperature
  • Dynamic LCD design
  • Dual USB design for electronic devices
  • Comprehensive protection
  • Multiple load control modes
  • Energy statistics function


The TommaTech® AU controller is a PWM charge controller with built in LCD display that adopts the most advanced digital technique. The multiple load control modes enable it can be widely used on solar home system, traffic signal, solar street light, solar garden lamp, etc.

Rated System Voltage
12 / 24V Auto
Battery Input Voltage Range
9V ~ 32V
Maximum PV Open Circuit Voltage
Battery Type
Dry / gel / juicy
Balancing Charge Voltage
Dry: 14.6v / gel: no / watery: 14.8v
Upgrade Charge Voltage
Dry: 14.4V / gel: 14.2v / watery: 14.6v
Float Charge Voltage
Dry / gel / juicy: 13.8v
Reconnect Voltage (Low Voltage)
Dry / gel / juicy: 12.6v
Disconnect Voltage (Low Voltage)
Dry / gel / watery: 11.1v
Self consumption
≤9.2ma/12V; ≤11.7ma/24v; ≤14.5ma/36v; ≤17ma/48V
Discharge Circuit Voltage Drop
Temperature Coefficient
-3MV / ° C / 2V (25 ° C)
Common positive
LCD Display Operating Temperature Range
-20 ° C+70 ° C
USB Output
5VDC / 2.4A (Total)
Operating Environment Temperature Range
-25 ° C ~+55 ° C (the product can work continuously at full load)
Relative humidity
≤95%, non -condensation
194 x 118.4 x 63.8mm
Mounting Size
185 x 90mm
Mounting Hole Size
Rated Charge/Discharge Current
45A@55 ° C
Charge Circuit Voltage Drop
Protection Class
Connection Terminal
16 / 6AWG
Technical Document