1. Введение и окончаниеview
The Genasun GVB-8-Li-28.4V is a voltage boosting Maximum Power Point Tracking (MPPT) solar charge controller designed for 8S LiFePO4 batteries (24V nominal). This controller efficiently harvests solar energy to charge your battery system, even in sub-optimal conditions.
- High-Speed MPPT: Tracks the Maximum Power Point 15 times per second for optimal energy harvesting.
- Томtage Boosting: Capable of boosting the voltage output from a solar panel to charge a battery with a higher nominal voltage, starting with a minimum input of 5V.
- Высокая эффективность: Achieves up to 98% peak efficiency with minimal self-consumption (5-7 mA).
- Компактный дизайн: Features tiny dimensions and lightweight construction, without the need for a heat sink or fan.
- Широкий диапазон рабочих температур: Надежно работает в диапазоне температур от -40°C до 85°C (от -40°F до 185°F).
- Сертификации: ETL, CE, FCC, RoHS certified.
2. Настройка и установка
Proper installation is crucial for the safe and efficient operation of your Genasun GVB-8-Li-28.4V charge controller. Always ensure all connections are secure and follow local electrical codes.
2.1. Компоненты закончилисьview

Рисунок 1: Передняя часть view of the Genasun GVB-8-Li-28.4V Solar Charge Controller.

Рисунок 2: Сторона view of the Genasun GVB-8-Li-28.4V Solar Charge Controller, showing connection terminals.
2.2. Схема подключения
The following diagram illustrates the typical wiring for the GVB-8-Li-28.4V charge controller. Ensure correct polarity for all connections.

Figure 3: Wiring connections for the GVB-8-Li-28.4V controller, solar panel, and 8S LiFePO4 battery.
2.3. Подробности подключения
- Подключение солнечной панели: Connect your solar panel to the 'PANEL' terminals. The GVB-8-Li-28.4V is designed for a 210W solar panel with a recommended current input of 8A.
- Подключение аккумулятора: Connect your 8S LiFePO4 battery (24V nominal) to the 'BATT' terminals. The controller is programmed with a charge voltage CC/CV at 28.4V (3.55V per cell).
- Проволочный калибр: The standard version utilizes a terminal block that accommodates up to 10 gauge wires. The waterproof (WP) version features 16 gauge wires with an inline fuse for both PV input and battery output.
- Water Ingress Prevention: For non-waterproof versions, consider using drip loops as recommended in the manual to prevent water ingress.
3. Инструкция по эксплуатации
3.1. Светодиодный индикатор
The multicolor LED on the controller provides visual feedback on the charge status, input current, and other relevant details. Refer to the manual for a detailed interpretation of LED patterns.
3.2. MPPT Functionality
The GVB-8-Li-28.4V employs high-speed MPPT technology, tracking the maximum power point 15 times per second. This ensures that optimal power is harvested from your solar array, even under varying light conditions such as early morning, late evening, or partial shading.
3.3. Trickle Charge Feature
This controller includes a trickle charge feature, particularly useful for lithium battery applications. If a battery's Battery Management System (BMS) has disconnected all loads due to a high depth of discharge, the trickle charge can gradually bring the battery out of protection mode, allowing the charge controller to resume optimal output.
4. Техническое обслуживание
The Genasun GVB-8-Li-28.4V is designed for durability and minimal maintenance. However, periodic checks can ensure long-term performance.
- Охрана окружающей среды: The fully potted waterproof GVB-8-Li-28.4V is IP68 rated, offering excellent protection against dust and water. The non-waterproof version is IP40 rated.
- Рабочая температура: The acceptable operating range is -40°C to 85°C (-40°F to 185°F).
- Уборка: Keep the controller free from dust and debris. Use a soft, dry cloth for cleaning. Do not use harsh chemicals or abrasive materials.
- Проверка подключения: Периодически проверяйте все соединения проводки, чтобы убедиться в их надежности и отсутствии коррозии.
5. Поиск Неисправностей
If you encounter issues with your Genasun GVB-8-Li-28.4V, refer to the LED indicator status and the following common troubleshooting tips.
- Светодиоды не работают: Check solar panel connections and battery connections for proper polarity and secure fit. Ensure the solar panel is receiving sufficient light.
- Аккумулятор не заряжается: Убедитесь, что напряжение солнечной панели соответствует норме.tage and current are within the controller's specifications. Check the battery's state of charge; if deeply discharged, the trickle charge feature should initiate.
- Перегрев: Although designed for high efficiency without a heat sink, ensure the controller is installed in a location with adequate airflow, especially in high ambient temperatures.
- Неправильный уровень заряда батареиtage: Ensure the controller model matches your battery's nominal voltage (e.g., 28.4V for 8S LiFePO4).
For persistent issues, contact Genasun customer support.
6. Технические характеристики

Figure 4: Comparison of GVB-8 features against other boost controllers.
| Особенность | Деталь |
|---|---|
| Модель | GVB-8-Li-28.4V |
| Тип батареи | 8S LiFePO4 (24V Nominal) |
| Заряд Voltagе (CC/CV) | 28.4В |
| Recommended Panel Power | 210 Вт |
| Recommended Input Current | 8A (up to 9A acceptable) |
| Минимальная входная громкостьtage | 5V |
| Пиковая эффективность | 98% (типично) |
| Ночное потребление | 5-7 mA (typical) |
| Рабочая температура | -40°С до 85°С |
| Защита | IP68 (Waterproof version), IP40 (Standard version) |
| Размеры | 9.5 x 5.7 x 2.2 см (3.75 x 2.25 x 0.85 дюймов) |
| Масса | 100 г (3.5 унции) |
| Производитель | Genasun |
7. Гарантия и поддержка
7.1. Информация о гарантии
The Genasun GVB-8-Li-28.4V comes with a standard factory Гарантия 5 годДанная гарантия распространяется на дефекты материалов и изготовления при условии нормального использования. Сохраните чек о покупке для предъявления гарантийных претензий.
7.2. Поддержка клиентов
For any questions, technical assistance, or warranty inquiries, please contact Genasun customer support through their official website or the retailer where the product was purchased. You may also find helpful resources and FAQs on the Genasun Store on Amazon.
Видео 1: Оверview of Genasun GVB-8 and GVB-8-WP Boost MPPT charge controllers by RV Power (Seller).




