1. መግቢያ
This manual provides detailed instructions for the installation, operation, and maintenance of your HQST 20A PWM Solar Charge Controller. This device is designed to manage the power flow from your solar panel to your battery, ensuring efficient charging and protecting your battery from overcharge and over-discharge. It is compatible with 12V and 24V PV systems and various lead-acid battery types.
2. የምርት ባህሪዎች
- 20A Solar Charge Controller: Automatically detects 12V or 24V PV systems.
- የባትሪ ተኳኋኝነት Works with Sealed, and Flooded lead-acid batteries.
- የተሻሻለ ባትሪ መሙላት፡ Features an optimized 3-stage battery charging system to regulate electricity flow and prolong battery lifespan.
- Accurate LCD Display: Large digital LCD display clearly indicates working conditions and accurate operating data for real-time PV system monitoring.
- አጠቃላይ ጥበቃ; Provides reverse polarity protection, block reverse current at night, short circuit, overcharge, over-discharge, and overload protection for solar panel and battery.
- ቀላል መጫኛ; Designed with corresponding icons on each connector for quick setup.
- ዩኤስቢ-ኤ ወደብ፡ Includes a USB-A port for charging mobile devices or powering small loads.
- በርካታ መተግበሪያዎች፡- Suitable for RVs, cabins, workshops, garages, and other off-grid lighting or power needs.
3. ምርት አብቅቷልview
Familiarize yourself with the components of your HQST Solar Charge Controller.

ምስል 3.1፡ ፊት ለፊት view of the HQST Solar Charge Controller with key components labeled, including mounting holes, LCD screen, control keys, solar panel terminals, battery terminals, load terminals, and USB port.

ምስል 3.2፡ ዝርዝር view of the LCD display, showing indicators for PV (solar panel), BAT (battery), LOAD, parameter digits, and units (kWh, %, V, °C). It also illustrates the power flow from solar panel to battery to load.
4. ዝርዝሮች
| ባህሪ | ዝርዝር መግለጫ |
|---|---|
| ሞዴል | 20 ሀ PWM |
| ስርዓት ጥራዝtage | 12 ቪ / 24 Auto ራስ-ሰር |
| ከፍተኛ ክፍያ የአሁኑ | 20 ኤ |
| የባትሪ ዓይነት ተኳኋኝነት | Sealed, Flooded Lead-Acid Batteries |
| የማሳያ ዓይነት | LCD |
| የዩኤስቢ ውፅዓት | 5V/1A (USB-A Port) |
| የምርት ልኬቶች | 5.12 x 1.38 x 2.95 ኢንች (13 x 3.5 x 7.5 ሴሜ) |
| የእቃው ክብደት | 4.9 አውንስ (0.14 ኪግ) |
| አምራች | HQST |
| ዩፒሲ | 791810331544፣ 810081407366 |

ምስል 4.1፡ Physical dimensions of the HQST Solar Charge Controller, showing length (6.45 in), width (4.07 in), and height (1.85 in).

ምስል 4.2፡ Illustration of battery types compatible with the HQST Solar Charge Controller, including Sealed, Gel, Flooded, and Lead-Acid batteries.
5. የደህንነት መመሪያዎች
- Ensure all connections are tight and secure to prevent loose connections that can cause excessive heat.
- ሁልጊዜ ባትሪውን ከቻርጅ መቆጣጠሪያው ጋር ያገናኙት, ከዚያም የፀሐይ ፓነል እና በመጨረሻም ጭነቱን ያገናኙ. በተቃራኒው ቅደም ተከተል ግንኙነቱን ያቋርጡ።
- Do not connect an inverter directly to the load terminals of the charge controller. Connect inverters directly to the battery.
- መቆጣጠሪያውን በደንብ አየር በሚተነፍስበት ቦታ ላይ ይጫኑት፣ ከፀሐይ ብርሃን፣ ከከፍተኛ ሙቀት እና እርጥበት ርቆ።
- የስርዓቱን ጥራዝ ያረጋግጡtage (12V or 24V) matches the battery bank voltage. The controller automatically detects this.
- Use appropriate wire gauges for all connections to prevent voltage ጠብታ እና ከመጠን በላይ ማሞቅ.
- ከባትሪዎች ጋር ሲሰሩ የዓይን መከላከያ ይልበሱ።
6. መጫኛ (ማዋቀር)
Follow these steps for proper installation of your solar charge controller.
- መጫን፡ Choose a dry, well-ventilated location for mounting the controller. Ensure there is sufficient space around the controller for heat dissipation. Use the mounting holes provided on the unit.
- ባትሪውን ያገናኙ; Connect the battery to the battery terminals on the charge controller. Ensure correct polarity (+ to + and - to -). The LCD display should illuminate, indicating the controller has detected the battery voltage.
- የፀሐይ ፓነልን ያገናኙ; Connect the solar panel to the solar panel terminals on the charge controller. Ensure correct polarity. The controller will begin charging the battery if sunlight is available.
- ጭነቱን ያገናኙ፦ Connect your DC loads (e.g., lights, fans) to the load terminals. Ensure correct polarity. The USB-A port can also be used for charging compatible devices.
Important Connection Order: Always connect the battery first, then the solar panel, and finally the load. Disconnect in the reverse order: load first, then solar panel, then battery.

ምስል 6.1፡ A typical wiring diagram showing the connection of a 12V solar panel, the HQST PWM charge controller, a 12V deep cycle battery, and a 12V power inverter. Note the recommended fuse placement and wire gauges.

ምስል 6.2፡ Visual step-by-step guide for connecting the HQST Solar Charge Controller: 1. Connect the battery. 2. Connect the solar panel. 3. Connect the load (light bulb). This sequence ensures safe and proper system setup.
7. ኦፕሬሽን
Once installed, the controller operates automatically. The LCD display provides real-time information about your system.
7.1 የኤል ሲ ዲ ማሳያ እና የአዝራር ተግባራት
The LCD cycles through various parameters such as battery voltage, charging current, load current, and temperature. The single red button is used to manually cycle through display modes or to enter settings for load control (e.g., timer settings for lights).
- አጭር ፕሬስ፡ Cycles through display parameters.
- ረጅም ፕሬስ (በግምት 5 ሰከንዶች): Enters or exits setting mode for load control.
7.2 የጭነት መቆጣጠሪያ
The controller offers programmable load control. You can set the load to turn on/off based on daylight or a timer. Refer to the specific settings menu on the LCD for detailed configuration. The USB-A port is typically powered when the load output is active.

ምስል 7.1፡ The HQST Solar Charge Controller featuring a USB-A port, which can be used to charge mobile devices or power small USB-compatible electronics.
8. ጥገና
መደበኛ ጥገና የፀሐይ ኃይል መሙያ መቆጣጠሪያዎ ጥሩ አፈጻጸም እና ረጅም ጊዜ እንዲቆይ ያረጋግጣል።
- ግንኙነቶችን ይፈትሹ; Periodically check all wiring connections for tightness and corrosion. Loose connections can lead to power loss and overheating.
- መቆጣጠሪያውን ማጽዳት; መቆጣጠሪያውን ንፁህ እና ከአቧራ እና ከቆሻሻ የጸዳ ያድርጉት። ለማጽዳት ደረቅ ጨርቅ ይጠቀሙ። ፈሳሾችን አይጠቀሙ።
- አፈጻጸምን ተቆጣጠር፡ Regularly check the LCD display for normal operation and expected readings. Note any unusual behavior.
- የባትሪ ጤና፡ Ensure your batteries are properly maintained according to their manufacturer's guidelines.
9. መላ መፈለግ
ይህ ክፍል ከፀሐይ ኃይል መቆጣጠሪያዎ ጋር ሊያጋጥሙዎት የሚችሉ የተለመዱ ችግሮችን ያብራራል።
| ችግር | ሊሆን የሚችል ምክንያት | መፍትሄ |
|---|---|---|
| Controller not powering on / LCD blank | Battery not connected or reverse polarity; battery voltagበጣም ዝቅተኛ. | Check battery connections and polarity. Ensure battery voltage is above the minimum operating voltagሠ (በተለምዶ 8 ቪ). |
| ባትሪ እየሞላ አይደለም። | Solar panel not connected or reverse polarity; insufficient sunlight; damaged solar panel or wiring. | Check solar panel connections and polarity. Ensure adequate sunlight. Inspect solar panel and wiring for damage. |
| ጭነት እየሰራ አይደለም | Load not connected or reverse polarity; load current exceeds controller rating; battery voltage too low; load control setting. | Check load connections and polarity. Ensure load current is within 20A. Check battery voltage. Adjust load control settings if a timer or light sensor mode is active. |
| በኤልሲዲ ላይ የስህተት ኮዶች | Specific system fault (e.g., overcharge, over-discharge, short circuit). | Refer to the controller's internal error code list (if available in a more detailed manual) or contact HQST support. Address the underlying issue (e.g., reduce load, check battery). |
10. ዋስትና እና ድጋፍ
For warranty information or technical support, please refer to the official HQST webጣቢያ ወይም በቀጥታ የደንበኛ አገልግሎታቸውን ያግኙ። ለዋስትና ጥያቄዎች የግዢ ደረሰኝዎን ያስቀምጡ።
HQST is committed to providing high-quality solar products and responsive customer service.





