Solar Power Manager 5V
- Delivery nationwide via The Courier Guy — R150 flat, free over R2,000
- Free collection from our Milnerton (Cape Town) warehouse
- Secure checkout — PayFast card payment or EFT
- Questions? WhatsApp us on +27 65 900 8570
Description
The Solar Power Manager 5V is a compact, high-efficiency solar power management module tailored for 5V solar panels and 3.7V lithium batteries. Equipped with Maximum Power Point Tracking (MPPT) and comprehensive safety protections, it is ideal for makers, students, and engineers building renewable energy and IoT projects.
Board overview and interface layout
The module features dedicated connections for 4.5V to 6V solar input, USB charging input, a 3.7V single-cell lithium battery, and regulated 5V 1A USB and pin header outputs. Its compact 33.0mm by 63.0mm footprint simplifies integration into embedded IoT and outdoor setups.
System connection and charging options
The board supports dual charging modes via solar panel or USB input with up to 900mA maximum charging current. It utilizes a three-phase charging cycle comprising trickle, constant current, and constant voltage modes to safely charge 3.7V Li-polymer or Li-ion batteries.
MPPT efficiency and regulated output
Powered by the CN3165 IC, the module uses a constant voltage MPPT algorithm to maximise the energy harvested from 5V solar panels within 10W. It delivers an ON/OFF controllable 5V 1A regulated output with up to 86% power supply efficiency at 50% load.
Comprehensive hardware protection features
Integrated safety measures include over-charge, over-discharge, over-current, and reverse-connection protection on the battery input. The solar input includes reverse-connection protection, while the 5V and USB outputs feature short-circuit, over-current, and over-heat safeguards alongside an ESD-protected USB shell.
Package contents and mounting hardware
The package includes one Solar Power Manager 5V board, a 2.54mm jumper, four M3 10mm nylon pillars, four M3 5mm stainless steel screws, a black aluminium cooling fin, and a thermal conductive silicone pad.
Downloads & documentation
Specifications
| 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 |
| USB/Solar Charge Efficiency | 73%@3.7V 900mA BAT IN |
| Quiescent Current | Operation Temperature: -40℃～85℃ |
| Dimension | 33.0mm*63.0mm |
| 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 |
In the box
| Solar Power Manager 5V | 1 |
| 2.54mm Black Jumper | 1 |
| M3*10mm Nylon Pillar | 4 |
| M3*5mm Stainless Steel Screw | 4 |
| 14*14*7mm Black Aluminum Cooling Fin | 1 |
| 14*14*0.5mm Thermal Conductive Silicone Pad | 1 |
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