Ich hab mal Solarladeregler bestellt, da möchte ich hier kurz die Dokumentation zusammenfassen, nicht das man das nachher nicht mehr findet. Es handelt sich um einen MPPT-Laderegler als StepDown mit einstellbarer Ladeschluss- und Unterspannungsabschaltung.

Pinbelegung

Eigenschaften:

• Input up to 40V
• 10A
• Output 7-40V
• Battery charge upper limit voltage : 7V-30V(User define,suggest 14.4V@12V battery 28.8V@24V battery);
• Load cutoff voltage:7V-28V(User define,suggest 10.5v@12V battery,21v@24V battery );
• Charge current :10A(max);
• MPPT voltage:System auto set;
• Quiescent current:7mA(Test@12V battery)

Inside 40V TVS thunder protection; Inside reverse discharge protection Switch(recommend short the Diode on the solar panal to reduce loss ); Environment temperature range: -30 Centigrade -60 Centigrade; Thermal protection:70 degree shut down,auto recover; Led Indicator: Always on(battery full)/ Blink(Charging), only correct when connect battery and has sunshine. How to set charge upper limit voltage,Load cutoff lower voltage: 1. Charge upper limit voltage:release all wires,apply definite voltage on Battery inputs,then bridge the No2,3 pin 0.5 second by metal(screw driver). 2.Load cutoff voltage:release all wires,apply definte voltage on Battery inputs and bridge No1,2 pin 0.5 second by metal(screw driver) . Use step: 1.Set the charge upper limit voltage,load cutoff voltage; 2.Connect battery first;

The defference between MPPT and PWM mode solar controller: MPPT mode will keep definite voltage when charge,PWM mode voltage clamp at battery's voltage; MPPT charge current will bigger than rate current,PWM mode less than rate current. About Parallel: If user need parallel mppt moudles to extend more current,note do not connect solar ports together unless have big current diode serial at battery port and load port or maybe cause damage. Note: The schematic can be sell by another price; No input reverse; No short circuit protection ; Recommend add external fuse at battery port. Do not select solar panal with open circiut voltage biger than 40v.

eigentlich mehr ne kopie von äh hier: http://www.aliexpress.com/item/Real-MPPT-Solar-Charge-Controller-Improve-current-30-40V-10A-charge-all-kinds-battery-Water-proof/891277906.html