User Manual for V-TAC VT-303 Energy Storage Power Supply

Quick guide from the manual

The V-TAC VT-303 is an energy storage power supply designed for portable power needs. Before first use, it is recommended to fully charge the battery to avoid issues caused by insufficient power. The device features an air cooling system, so slight noise during operation is normal. Always ensure the device is used in a well-ventilated and dry environment.

Technical Specifications

• Battery Capacity: 252Wh
• Net Weight: 3.2kg
• Dimensions: 230x208x168mm
• DC Input: 20V 3A (Supports 12-24V)
• AC Output: 230V, Pure Sine Wave, 300W (Peak 600W)
• USB Outputs: 5V 2.4A, QC3.0, USB-C 30W
• Operating Temperature: -10 to 40°C
• Charging Temperature: 0 to 40°C

Parts and Description

The device includes the following key components:

• Auxiliary Charge Output: 12V 8A
• USB Outputs: USB 2.0, USB-C 30W, and USB-A QC3.0
• AC Output: 230V AC port
• LED Screen: Displays input/output power and battery percentage
• Controls: Dedicated keys for DC output, USB output, and AC output

Charging Instructions

The device can be charged using several methods:

• Standard Charger: Approximately 7.5 hours.
• Car Charger: Approximately 9 hours.
• Solar Photovoltaic Panel: Approximately 10 hours (100W panel).

During charging, the indicator light is blue. The LED screen shows the current charging ratio and power. A full charge is indicated when the screen shows 100%.

Safety Warnings

• Installation must be performed by a qualified electrician.
• Do not dismantle the product; this may lead to fire, explosion, or electric shock.
• Do not use damaged wires, plugs, or output cables.
• Keep the product away from fire and temperatures exceeding 130°C.
• Avoid using or placing the product in high-temperature environments like direct sunlight or hot car interiors.
• Charge the product at least every three months to maintain battery health.
• This product cannot be taken on a plane as it exceeds the 100Wh limit for lithium batteries.

Troubleshooting

If you encounter issues, check the following:

• Product cannot be charged: Ensure the charger and product are in good contact with the power supply. If the indicator is still off, contact customer service.
• No output: Ensure the equipment is properly connected and the specific output port switch (DC, USB, or AC) is turned on.
• Output interrupt: If the equipment's starting power exceeds the product's rated power, or if there is a short circuit, the device will automatically shut off output. Check your equipment's power requirements.