Fangpusun - Solar Power Inverter Manufacturer and Solar Charge Controller Supplier   

MPPT(Blue) Solar Charge Controller 75/05,75/10,100/15
Delivery time:
1-20 working days
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Load output 

Over-discharge of the battery can be prevented by connecting all loads to the load output. The load outputwill disconnect the load when the battery has been discharged to a pre-set voltage. 

Alternatively, an intelligent battery management algorithm can be chosen: see Battery Life. The load output is short circuit proof.

Some loads (especially inverters) can best be connected directly to the battery, and the inverter remotecontrol connected to the load output. A special interface cable may be needed, please see the manual.


Battery Life: intelligent battery management

When a solar charge controller is not able to recharge the battery to its full capacity within one day, the result is often that the battery will continually be cycled between a ‘partially charged’ state and the ‘end of discharge’ state. This mode of operation (no regular full recharge) will destroy a lead-acid battery within weeks or months.

The Battery Life algorithm will monitor the state of charge of the battery and, if needed, day by day slightlyincrease the load disconnect level (i.e. disconnect the load earlier) until the harvested solar energy issufficient to recharge the battery to nearly the full 100%. From that point onwards the load disconnect level will be modulated so that a nearly 100% recharge is achieved about once every week.

Upper curve: 

Output current (I) of a solar panel as function of output voltage (V).

The maximum power point (MPP) is the point Pmax along the curve where the product I x V reaches its peak. 

Lower curve: 

Output power P = I x V as function of output voltage. 

When using a PWM (not MPPT) controller the output voltage of the solar panel will be nearly equal to the voltage of the battery, and will be lower than Vmp.


1a)I more PV power is connected the controler will mt input power to the stated maximum
1b)PV voltage must exceed Vbat+5V for the controller to start Thereafter minimum PV voltage is Vbat+ 1V

Product Parameters

Compliant with European Standards (CE), RoHS compliant,SGS,ISO 9001,Made in China

Fangpusun charge controllerMPPT75/05MPPT75/10MPPT 100/15
System voltage375 Wp12/24 V Auto Select
Maximum output current5A10A15A
Maximum PV power, 12V 1a,b)70 W135W200W
Maximum PV power, 24V 1a,b)135 W230 V270W400W
Maximum PV open circuit voltage1.5 A75 V100 V
Maximum efficiency300 W98 %
Self-consumption10 mA
Charge voltage 'absorption'300 WDefault setting:14,4 V / 28.8 V (adjustable)
Charge voltage 'float'50 Hz
Default setting:13,8 V / 27,6 V(adjustable)
Charge algorithm
multi-stage adaptive
Temperature compensation-16 mV / °C resp.-32 mV / °C
Continuous/peak load current15A/50A
Low voltage load disconnect11,1V / 22,2V or 11,8V / 23,6V or Battery Life algorithm
Low voltage load reconnect13,1V / 26,2V or 14V / 28V or Battery Life algorithm
ProtectionBattery reverse polarity (fuse)/Output short circuit / Over temperature  6 % (max. power)
Operating temperature30 to +60°C (full rated output up to 40°C)
Data communication portVE.Direct
94.8 %See the data communication white paper on our website
Colour Terminals(fine / single wire)
99 %Blue (RAL 5012)

6mm² / AWG10
Protection category
from 40 ℃

IIP22 (connection area)
0.35 kg 0 W0.5kg
Dimensions (X x Y x Z)100 x 113 x 38.5 mm101 x 114 x 47 mm
Safetyvoltage (230 V +15 %/-10 %)EN/IEC 62109
frequency (50 Hz +0.5 Hz/-3 Hz)
1a) If more PV power is connected, the controller will limit input power to the stated maximum.
resp . 500 ESvoltage (230 V +10 %/-15 %)
1b) PV voltage must exceed Vbat + 5V for the controller to start. Thereafter minimum PV voltage is Vbat + 1V

Product Displays 

Maximum Power Point Tracking 

Programmable battery charge algorithm 

See the software section on our website for details 

Day/night timing and light dimming option 

See the software section on our website for details 

Programming, real-time data and history display options 

- Modern Apple and Android smartphones, tablets, macbooks and other devices: see the VE.Direct Bluetooth Smart dongle and the MPPT app discovery sheet for screenshots.

- ColorControl panel

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