1. Bubuka
The POWERTECH MP3752 is an intelligent and lightweight solar charge controller designed to manage the power flow from your solar panels to your battery bank. Utilizing Pulse Width Modulation (PWM) technology, it ensures efficient and safe battery charging. This controller offers a set-and-forget operation, providing maximum charge into your batteries without constant monitoring. It integrates essential safety features such as overload, short-circuit, over-discharge, and reverse-polarity protection. Additionally, a convenient USB port on the front panel allows for up to 1.2A charging, useful for mobile devices during power outages. The unit supports various battery types including sealed lead-acid, Gel, and flooded cells, and automatically selects the optimal charging mode (bulk, equalise, float).
2. Émbaran Kasalametan
Please read all instructions carefully before installation and operation. Failure to follow these instructions may result in damage to the unit, battery, or personal injury.
- Ensure all connections are correct and secure before applying power.
- Do not connect the solar controller to an AC power source.
- Pasang controller di tempat anu ventilasina saé, jauh tina bahan anu gampang kaduruk sareng sinar panonpoé langsung.
- Avoid short-circuiting the battery terminals or solar panel terminals.
- Always connect the battery first, then the solar panel, and finally the load. Disconnect in reverse order.
- This device is not waterproof; protect it from moisture and water.
- Ngan tanaga anu mumpuni kedah ngalaksanakeun pamasangan sareng perawatan.
3. Fitur Produk
- Automatic charge mode selection (Bulk, Equalise, Float).
- Suitable for both 12V and 24V battery banks.
- Integrated USB charging port (5V, 1.2A max) on the front panel.
- Supports sealed lead-acid, Gel, and flooded battery types.
- Comprehensive protection features: overload, short-circuit, over-discharge, reverse-polarity.
- Pulse Width Modulation (PWM) charging technology.
4. Eusi Paket
Punten parios eusi bungkusan saatos nampi:
- 1 x POWERTECH MP3752 Solar Controller
- 1 x Manual Pamaké (dokumén ieu)
5. Produk Langkungview jeung Sambungan

Gambar 1: Hareupeun view of the POWERTECH MP3752 Solar Controller. This image displays the PV LOAD, UVW, LVD, Load ON, Over Load, Short-Circuit indicators, the USB port, and the connection terminals for solar panels, battery, and load.
The MP3752 controller features clearly marked terminals for easy connection. Refer to Figure 1 for a visual guide to the controller's layout and indicators.
Terminal sambungan:
- Solar Panel Input (PV): Connect your solar panel array here. Ensure correct polarity (+ and -).
- Sambungan batré: Connect your 12V or 24V battery bank here. Observe correct polarity (+ and -).
- Kaluaran Beban: Connect your DC loads (e.g., lights, fans) here. Observe correct polarity (+ and -).
- Port USB: 5V, 1.2A max output for charging small electronic devices.
6. Setup jeung Instalasi
Follow these steps for proper installation of your solar charge controller:
- Pamasangan: Choose a dry, well-ventilated indoor location, away from direct sunlight, high temperatures, and moisture. Ensure sufficient air circulation around the controller.
- Sambungan batré:
- Connect the positive (+) terminal of the battery to the battery positive (+) terminal on the controller.
- Connect the negative (-) terminal of the battery to the battery negative (-) terminal on the controller.
- The controller will automatically detect if it's a 12V or 24V system.
- Sambungan Panel Surya:
- Connect the positive (+) terminal of the solar panel to the solar panel positive (+) terminal on the controller.
- Connect the negative (-) terminal of the solar panel to the solar panel negative (-) terminal on the controller.
- Ensure the open-circuit voltage of the solar panel does not exceed the maximum input voltage of the controller (typically 50V for 12/24V systems).
- Sambungan beban:
- Connect the positive (+) terminal of your DC load to the load positive (+) terminal on the controller.
- Connect the negative (-) terminal of your DC load to the load negative (-) terminal on the controller.
- Do not exceed the maximum rated current for the load output (20A).
- Pariksa sambungan: Double-check all connections for correct polarity and tightness before proceeding.

Figure 2: The POWERTECH MP3752 Solar Controller shown in its packaging, illustrating its application with solar panels. This image provides a contextual view of the product's intended use.
7. Parentah Operasi
7.1. Automatic System Voltage Pangakuan
The controller automatically detects whether the connected battery bank is 12V or 24V upon initial connection. Ensure the battery is connected first for proper voltage deteksi.
7.2. Modeu Ngecas
The MP3752 employs intelligent PWM charging, automatically cycling through different stages to optimize battery health and lifespan:
- Beban ageung: Ngahasilkeun arus maksimum pikeun gancang ngecas batré dugi ka sakitar 80%.
- Equalise Charge: Sacara périodik nerapkeun volum anu langkung luhurtage to equalize the charge among battery cells, preventing sulfation and extending battery life (for flooded batteries).
- Ngapung Muatan: Maintains the battery at a full charge by providing a small, constant voltage, ngimbangan kaluarna diri.
7.3. Beban Control
The load output is controlled by the controller to prevent over-discharge of the battery. When the battery voltage pakait handap Vol Lowtage Disconnect (LVD) threshold, the load output will be automatically disconnected. It will reconnect once the battery has recharged to the Low Voltage Reconnect (LVR) threshold.
Press the power button on the controller to manually turn the load output ON or OFF.
7.4. Palabuhan Ngecas USB
The 5V, 1.2A USB port can be used to charge small electronic devices like smartphones or tablets. This port is active as long as the battery has sufficient charge.
8. Indikator
The POWERTECH MP3752 features several LED indicators to provide real-time status information:
- PV LOAD (Solar Panel Indicator):
- héjo: Solar panel is connected and generating power.
- Pareum: No solar input or insufficient light.
- Indikator ngecas:
- héjo: Batré keur ngecas.
- Pareum: Battery is fully charged or not charging.
- Overvoltage Indikator:
- Beureum: Masukan voltage from solar panel is too high, or battery voltage is overcharge protection level.
- UVW (Battery Voltage Indicator): Multiple LEDs indicating battery charge level.
- LVD (Low Voltage Disconnect Indicator):
- Beureum: Batré voltage is low, load output has been disconnected.
- Beban ON Indikator:
- héjo: Load output is active.
- Over Load Indicator:
- Beureum: Load current exceeds the maximum rated current. Load output may be temporarily disconnected.
- Short-Circuit Indicator:
- Beureum: Short-circuit detected on the load output. Load output will be disconnected.
9. Pangropéa
Pikeun mastikeun kinerja anu optimal sareng umur panjang tina pangontrol muatan surya anjeun, perawatan rutin disarankeun:
- beberesih: Periodically clean the exterior of the controller with a dry, soft cloth. Do not use solvents or abrasive cleaners.
- Sambungan: Annually check all wiring connections for tightness and corrosion. Loose connections can cause overheating and poor performance.
- Ventilasi: Ensure that the ventilation openings are not blocked and that there is adequate airflow around the unit.
- Pamariksaan: Inspect the controller for any signs of physical damage, discoloration, or unusual odors.
10. Cara ngungkulan
| Masalah | Mungkin Cukang lantaranana | Solusi |
|---|---|---|
| No charging from solar panel. |
|
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| Load output not working. |
|
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| Overvoltagindikator e hurung. |
|
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11. Spésifikasi
| Parameter | Nilai |
|---|---|
| Nomer modél | MP3752 (03617080) |
| Sistem Voltage | 12V/24V Panginderaan otomatis |
| Max. Muatan Ayeuna | 20A |
| Max. Beban Ayeuna | 20A |
| Kaluaran USB | 5V, 1.2A Max |
| Tipe Ngecas | PWM (Bulk, Equalise, Float) |
| Jinis Batré Dirojong | Sealed Lead-Acid, Gel, Flooded |
| Dimensi produk | 5.83 x 3.39 x 1.38 inci |
| Item Beurat | 5.6 ons |
| Produsén | POWERTECH |
| merek | Jaycar |
12. Garansi jeung Rojongan
This product is covered by a standard manufacturer's warranty against defects in materials and workmanship. Please refer to your purchase documentation for specific warranty terms and duration. For technical support, troubleshooting assistance, or warranty claims, please contact your retailer or the manufacturer directly.
Note: Unauthorized disassembly or modification of the product will void the warranty.





