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DFROBOT 900mA MPPT Solar Panel Controller - Solar Power Manager Module for 5V Solar Panel - Support Solar and USB Charging

DFROBOT 900mA MPPT Solar Panel Controller - Solar Power Manager Module for 5V Solar Panel - Support Solar and USB Charging

Q: if no power is going through the solar panel, can this be set to automatically turn on? In other words does the 5v auto turn on when it gets dark?

It automatically turns on when power is supplied from the panel. In the interim it draws from the battery.

Q: How do i mount the cooling fin? is that what the 3m tape is for? and i it suppose to have direct contact?

That is a good question. I didn't put on my unit and it is working fine.

Q: what is the minimum voltage from solar panel needed? my location is partialy shaded so I get 5.5 in direct sunlight in morning and 3.5 in afternoon

The minimum voltage required from the solar panel is 4.4-6V. In your case, you could connect a 3.7V Lipo battery at the BAT IN side. When the sunlight is not strong, the device can be powered by the lithium battery. When the sunlight is intense, the solar panel can power the device and also charge the lithium battery.

Q: Open circuit voltage is 7.2V operating is 6 volts on my solar panels will this work with solar power manager 5 volt 6 volts max

I had a little trouble with one of mine that had open circuit voltage above 6v. I opted for installing a step down circuit to drop it to 5v and it works like a champ.

4.5/5

Product ID: 561730228

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Details

Colour
Black
Brand
DFROBOT
Voltage
5 Volts
Material
Steel
Item Weight
0.07 Kilograms

⚡900mA max charge current

🔋MPPT maximizes solar efficiency

🛡️Comprehensive multi-layer protection

Frequently Bought Together

900mA MPPT Solar Panel Controller - Solar Power Manager Module for 5V Solar Panel - Support Solar and USB Charging

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Description

🔆 Power Smarter, Charge Faster, Stay Protected!

COMPACT YET ROBUST - Small footprint with industrial-grade steel build and thermal management for reliable operation from -40°C to 85°C.
PLUG PLAY POWER BOOST - 5V 1A regulated output with ON/OFF control powers your low-energy IoT devices and solar gadgets effortlessly.
DUAL CHARGING FLEXIBILITY - Seamlessly switch between solar and USB charging with up to 900mA current for rapid battery top-up.
MAXIMIZE YOUR SOLAR HARVEST - Advanced MPPT algorithm squeezes every drop of power from your 5V solar panel.
SAFE STABLE POWER DELIVERY - Built-in protections guard against overcharge, overdischarge, short circuits, and reverse polarity—keeping your projects safe.

The DFRobot 900mA MPPT Solar Panel Controller is a compact, high-efficiency solar power management module designed for 5V solar panels. Featuring a Maximum Power Point Tracking (MPPT) algorithm, it optimizes solar energy harvesting and supports dual charging modes via solar or USB with up to 900mA current. It delivers a regulated 5V 1A output with ON/OFF control, ideal for low-power IoT and solar projects. Comprehensive protection functions ensure battery and device safety, making it a reliable choice for smart solar applications.

Specifications

Manufacturer	iot
Color	Black
Shipping Weight	0.02 Kilograms
Item Model Number	DFR0559
Item Part Number	DFR0559
Primary material	Steel
Capacity	small

Have a Question? See What Others Asked

if no power is going through the solar panel, can this be set to automatically turn on? In other words does the 5v auto turn on when it gets dark?

How do i mount the cooling fin? is that what the 3m tape is for? and i it suppose to have direct contact?

what is the minimum voltage from solar panel needed? my location is partialy shaded so I get 5.5 in direct sunlight in morning and 3.5 in afternoon

Open circuit voltage is 7.2V operating is 6 volts on my solar panels will this work with solar power manager 5 volt 6 volts max

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