Solar Power Manager

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Solar Power Manager
Solar-Power-Manager01.jpg

Solar Power Management Module
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Overview

Specification

PRODUCT SOLAR POWER MANAGER SOLAR POWER MANAGER (B) SOLAR POWER MANAGER (C) SOLAR POWER MANAGER (D)
(SOLAR IN) 6V ~ 24V (6V by default) 6V ~ 24V (18V by default) 6V ~ 24V
RECHARGING Solar panel, power adapter, USB
BATTERY 3.7V 850mAh
14500 Li-ion battery (NOT included)
3.7V 10000mAh
Li-po battery
3x 18650 Li-ion battery 7800mAh (NOT included) 3.7V Li-ion battery (NOT included)
USB INPUT 5V (Micro USB) 5V (TYPE-C, with PD quick charge support)
5V OUTPUT 5V / 1A (USB OUT, pin header)
3.3V / 1A (pin header)
5V / 3A (USB-OUT, TYPE-C) 5V / 3A (Screw terminal, TYPE-C)
RECHARGING CUTOFF VOLTAGE 4.2V ± 1%
OVER DISCHARGING PROTECTION VOLTAGE 2.9V ± 1% 3.0V ± 1%
SOLAR PANEL RECHARGING EFFICIENCY ~ 78%
USB RECHARGING EFFICIENCY ~ 82% ~ 93%
BATTERIES BOOST OUTPUT EFFICIENCY ~ 86% ~ 90%
QUIESCENT CURRENT (MAX) <2mA <80mA <30mA
CASE N/A Metal case N/A
OPERATING TEMPERATURE -40℃ ~ 85℃
DIMENSIONS (mm) 65.2 × 56.2 × 22.9 108.0 × 71.0 × 25.2 119.0 × 71.0 × 25.2 45.0 x 40.0 x 16.1

Note

Lithium Batteries Usage Notes

  • Li-ion and Li-po batteries are quite unstable. They may cause fire, personal injury, or property damage if they're not properly recharged or used.
  • Do not reversely connect the polarities when recharging or discharging the battery. Do not use an inferior charger/charging panel to recharge the battery.
  • Do not mix use old batteries with new ones, avoid using batteries of different brands.
  • When buying a Lithium battery, should always make sure the battery specification is compatible with the expansion board. Choose batteries from the formal manufacturer, and ensure the batteries will work stably and safely by aging test.
  • Lithium batteries have a limited cycle life, they will also deteriorate as time goes by. Should be replaced with new ones when the batteries reach their max cycle life or work over two years, whichever comes first.
  • Should be placed carefully and properly, keep it away from inflammable and explosive articles, away from children, and avoid any safety accident caused by careless storage.

Introduction

This product adopts CN3791 as the solar charging management chip, suitable for charging 3.7V lithium batteries with 6V~24V solar panels, and is compatible with 14500 batteries and regular PH2.0 polymer battery interfaces. It is equipped with a lithium battery buck-boost chip and voltage regulator, supporting 5V/1A output. It can indirectly convert solar energy into electricity to supply low-power IoT and other green environmental protection projects. It has MPPT maximum power point tracking function and multiple protection circuits, which work efficiently, stably, and safely, and can be used in solar power generation, low-power IoT, and other green environmental protection projects.

Feature

  • Supports MPPT (Maximum Power Point Tracking) function, maximizing the efficiency of the solar panel.
  • Supports solar panel / USB connection battery charging.
  • For 6V~24V solar panels, DC-002 jack input or screw terminal input.
  • Onboard the MPPT SET switch, and select the level close to the input level to improve charging efficiency.
  • Onboard two power output interfaces: USB port for 5V output, pin-header for 3.3V or 5V output.
  • Onboard high-capacity aluminum electrolytic capacitor and SMD ceramic capacitor, reducing the ripple, and stable performance.
  • 14500 battery holder and PH2.0 battery connector, for connecting multi kinds of 3.7V rechargeable Li battery.
  • Several LED indicators, for monitoring the status of solar panels and batteries.
  • Multi-protection circuits: overcharge/over-discharge/reverse protection/overheat/over current, stable and safe to use.

Resources

FAQ

 Answer:
To charge the iPhone, you need to short-circuit the D+ and D- pins of the USB output port (red circle in the figure below):

Solar Power Manager 078.jpg
On the back of the board, you can weld 0603 0R resistor or weld together on the red box of the following figure, which can also be used to charge the Apple phone.
Solar-Power-Manager-02.jpg

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 Answer:
The maximum charging current is limited to 1A.

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 Answer:

For 6V~24V Solar Panel maximum input current is 3.5A.

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 Answer:
It is not possible. With a pure hardware circuit, if there is a battery, the switch can be turned on and there will always be a 5V output.

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 Answer:
This module is for use with low-power modules and is not recommended for powering the Raspberry Pi.

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 Answer:
Yes, you need to adjust the dip switch on the back to the gear corresponding to 9V.

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 Answer:
It mainly depends on the input voltage. The powering IC and charging IC will be limited to 1A input.

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 Answer:

1. Check if the battery is inserted in the correct orientation and if the battery warning light is on.
2. Check if the switch is turned on.
3. Press the boot trigger button.
4. Check if there is a current-limiting resistor on the indicator light IC. Without this resistor, the indicator will not work.

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 Answer:

You can connect the PH2.0 connector to the battery with any capacity, it only requires the battery to be rechargeable and 3.7V.
(for connecting 3.7V rechargeable Li battery, PH2.0 connector).

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 Answer:
Supports charging and discharging at the same time, and supports always plugged-in use.

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 Answer:
Not supported, requiring solar panel input voltage of 6V~24V.

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 Answer:
With maximum light efficiency utilization, it takes almost 2 hours to be fully charged.

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 Answer:
With a 5V/2A power adapter, it may take about 1 hour to be fully charged.

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 Answer:

The button only works when changing the battery or when the device goes to sleep.

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 Answer:

You need to turn on the switch so that it can normally be recharged.
If you turn off the switch, it will not recharge or discharge just like the batteries were removed.

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 Answer:

I'm sorry that the solar board only supports the common battery now.
The voltage of the Lifepo4 battery is 3.2V and maximum 3.6V while fully charged which cannot be supported, our solar manager board requires the battery can support up to 4.2V.

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 Answer:

No, you can't use both batteries at the same time. You can only use one at a time, either the PH2.0 connector or the 14500 battery holder.

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 Answer:

It mainly depends on the input voltage. The powering IC and charging IC will be limited to 1A input.

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Support



Technical Support

If you need technical support or have any feedback/review, please click the Submit Now button to submit a ticket, Our support team will check and reply to you within 1 to 2 working days. Please be patient as we make every effort to help you to resolve the issue.
Working Time: 9 AM - 6 PM GMT+8 (Monday to Friday)