Real MPPT mode Solar charge controller，Water proof，Led indicator

Inside 20A buck converter ，input voltage auto hold at definite voltage when charge so that increase charge current 30%  . Can charge lithium battery.Auto float charge and stop charge when battery full.

Solar Panal input voltage: 7V-40V;

Up limit charge voltage : 7V-36V(User define，default 14.4V);

Load cutoff voltage:7V-36V(User define，default 10.5V);

Charge current :20A(max);

MPPT voltage:System auto set;

Size:103mm*33mm*21MM.

 

Inside 40V TVS thunder protection;

Inside reverse discharge protection MOSFET;

Environment temperature range: -30 Centigrade -50 Centigrade;

Thermal protection:70 degree shut down，auto recover;

 Led Indicator: Always on(battery full)/ Blink(Charging)， only correct with connect battery and has sunshine. 

 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.

How to set Top charge voltage，Load cutoff  voltage: 

1. Top charge voltage:release all wires，apply definite voltage on Battery ports，then short the No2，3 pin 0.5 second by metal.

2.Load cutoff voltage:release all wires，apply definte voltage on Battery inputs and short No1，2 pin 0.5 second by metal .

Use step:

1.Set the  load cutoff lower voltage，Top charge voltage;

2.Connect battery first;

 

 The defference between MPPT and PWM mode solar controller:

MPPT mode can supply bigger current more than Solar panal\'s short circuit current;

MPPT Has Buck inside to 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.

 

Note:

The schematic can be sell by another price;

No input reverse; 

Recommend add  external fuse at battery;

Do not select solar panal with open circiut voltage biger than 40v. 

';