High-frequency MPPT solar charge controller
220v Portable Power Supply (Battery Free)
- Product Brief: 220V Portable Power Supply (Battery Free)The 220V Portable Power Supply (Battery Free) is designed for users who need a practical AC power solution without an integrated battery pack. It is suitable for solar power systems, backup power applications, outdoor work, mobile energy use, and project scen
Description

220V Portable Power Supply (Battery Free)
The 220V Portable Power Supply (Battery Free) is designed for users who need a practical AC power solution without an integrated battery pack. It is suitable for solar power systems, backup power applications, outdoor work, mobile energy use, and project scenarios where the battery configuration is selected separately according to system requirements.
Product Overview
This battery-free portable power supply is built for flexible 220V AC power applications. Instead of fixing the product to a built-in battery capacity, it allows users, installers, and project buyers to match the external power source or battery system according to their actual usage needs. This makes it a practical option for solar distributors, installers, system integrators, and wholesale buyers who need adaptable power solutions for different markets.
Key Features
Battery-free design: Suitable for projects where the battery system is configured separately instead of using a built-in battery pack.
220V AC power application: Designed for common 220V power-use scenarios in outdoor, backup, mobile, and solar energy systems.
Flexible system matching: Can be used in applications where the power source, battery capacity, and load requirements vary by project.
Portable power use: Suitable for temporary power supply, field work, emergency preparation, and small off-grid energy applications.
B2B supply support: Suitable for distributors, installers, project contractors, wholesale buyers, and OEM/ODM cooperation.
Typical Applications
The 220V Portable Power Supply (Battery Free) can be used in outdoor work sites, temporary lighting systems, small solar power systems, emergency backup power setups, mobile equipment support, field maintenance, and renewable energy demonstration projects. It is also suitable for distributors who need a flexible portable power product for local solar and backup power markets.
How to Select the Right Solution
Before choosing this product, confirm the load type, required output voltage, expected working time, external battery configuration, solar input conditions, and installation environment. For motor loads, tools, or equipment with startup surge demand, please confirm the actual power requirement before ordering. Hysolar Energy can help match the suitable solution according to your project details.
Why Choose Hysolar Energy
Hongyi supplies solar charge controllers, inverters, portable power products, and power conversion solutions for global renewable energy markets. We support B2B customers with product selection, project matching, stable supply, wholesale orders, and OEM/ODM cooperation. For buyers looking for adaptable 220V portable power solutions, this battery-free model provides a flexible option for different solar and backup power applications.FAQs
Example: 800W PV array + 48V battery bank → 800 ÷ 48 × 1.25 = 20.8A → Choose a 20A or 30A controller.
Also, ensure the PV open-circuit voltage (Voc) does not exceed the controller's maximum PV input rating.
Connect the Battery first (positive to positive, negative to negative).
Connect the Solar Panels (PV input).
Connect the Load (optional).
Note: Use appropriately sized cables and fuses for safety.
PV Voltage Too Low: Ensure the solar panel voltage is at least 5V higher than the battery voltage.
Wiring Issues: Check for reversed polarity, loose connections, or blown fuses.
Battery Full: The controller will taper or stop charging once the battery is full.
Over-temperature Protection: The controller may reduce current if it gets too hot.
A built-in sensor adjusts the charging voltage based on battery temperature. It prevents overcharging in hot weather and undercharging in cold weather, significantly extending battery life.
MPPT (Maximum Power Point Tracking) is an advanced technology that continuously monitors the voltage and current output from solar panels, dynamically adjusting the operating point to extract the maximum available power under varying light conditions. It efficiently converts high PV voltage to the battery’s charging voltage, significantly boosting energy harvest compared to traditional PWM controllers.





















