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Solar Power Manager 5V
INTRODUCTION
- The DFRobot Solar Power Manager series are designed for IoT projects and renewable energy projects, providing safe and high-efficiency embedded solar power management modules for makers and application engineers.
- This Solar Power Manager (V1.1 Edition) is a small and easy-to-use 5V solar power management module.It features as MPPT (Maximum Power Point Tracking) function, maximizing the efficiency of the solar panel, suitable for various solar power projects.
- Version Update: V1.1(Newest): Battery (BAT IN) overcurrent and overdischarge protection is added to improve battery safety. It can be use for 3.7 lipo battery no matter it is packed with protection circuits or not.
FEATURES
- Constant voltage MPPT algorithm, maximizing solar panel efficiency
- Designed for 5V solar panel
- Double charging mode: solar/USB charger (900mA max charge current)
- 5V ON/OFF controllable regulated power supply for low-power applications
- All-round protection functions
- USB connector with ESD shell
SPECIFICATION
- Solar Power Management IC: CN3165
- Solar Input Voltage (SOLAR IN): 4.5V~6V
- Battery Input (BAT IN): 3.7V Single cell Li-polymer/Li-ion Battery
- Charge Current(USB/SOLAR IN): 900mA Max trickle charging, constant current, constant voltage three phases charging
- Charging Cutoff Voltage (USB/SOLAR IN): 4.2V±1%
- Regulated Power Supply: 5V 1A
- Regulated Power Supply Efficiency (3.7V BAT IN): 86% 50%Load
- USB/Solar Charge Efficiency: 73% 3.7V 900mA BAT IN
- Quiescent Current: <1 mA
- Operation Temperature: -40℃～85℃
- Dimension: 33.0mm*63.0mm
Protection Functions:
- BAT IN: over charge/over discharge/over current/reverse connection protection
- 5V/USB OUT: short circuit/over current/over heat protection
- SOLAR IN: reverse connection protection
SHIPPING LIST
- Solar Power Manager 5V x1
- 2.54mm Black Jumper x1
- M3*10mm Nylon Pillar x4
- M3*5mm Stainless Steel Screw x4
- 14*14*7mm Black Aluminum Cooling Fin x1
- 14*14*0.5mm Thermal Conductive Silicone Pad x1
Scott Wientjes
Reviewed in the United States on February 8, 2025
I use these to power solar Meshtastic LoRA Nodes. I have a 5v6w solar panel and 3 21700(4500mAh) cells in parallel. Output to the Meshtastic node. It has been up on my tower for 3 weeks and it has kept the batteries fully charged even during sub freezing Temps and multiple days of cloudy conditions. Very happy with the DFRobot controller. I have bought 6 of these now and would buy more.👍
john
Reviewed in the United States on February 24, 2025
been running several of these for meshtastic solar nodes, they work great and I haven't had a problem at all. totally worth it.
caleb simmons
Reviewed in the United States on January 30, 2025
Worked well for what I needed.I used this for a solar project for my son. It has all the connections that you would need and is very well made. Good price for a good item.
I am Steve
Reviewed in the United States on January 30, 2025
got 3 of these. one didn't work. two work, but charge the battery really slow because it's less than an amp
RH
Reviewed in the United States on May 1, 2024
Works perfectly. Thanks
Jeff C
Reviewed in the United States on November 29, 2024
This board is extremely efficient with a 5 watt panel and a RAK 4631. I charges the battery up to 4.21 volts and manages to keep it peaked on very overcast days. Great combo with a 6,000 mAh battery.
D. Smith
Reviewed in the United States on April 19, 2024
Has all the features, well made
Manda
Reviewed in the United States on April 3, 2022
My only complaint is why didn't DFRobot make the boot switch usable via an external set of pins?Now whenever the battery fully dies I have to open up the device it's embedded in and try to press that micro button before it will work again. Which means I also have to design the mounts so that I can reach that tiny button when I inevitably will have to press it.The ability to turn off and on the 5v pins via the EN pin is a great feature, but the it would be nice if the USB port's always on power could be connected though a set of external pins (so that it can also be wired to an external on/off switch).A jumper that could disable all the LEDs on the board would also be nice.An onboard voltage divider connected to the battery leads with an external output pin would be a great edition so that we can check the battery voltage via an Arduino's analog pin easily. (my guess is that this already is available somewhere in that circuit already there's just no external access to it)Hopefully some of these suggestions make it into version 1.2 :) (which I will also purchase)
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