The GRECELL T300 is a portable power station designed to provide reliable power for various devices, ensuring personal safety, property security, and a positive user experience. It features a robust design with a folding handle for easy portability and an anti-collision strip for added durability.

Function Description

The T300 serves as a versatile power source, capable of charging and powering a wide range of electronic devices. It incorporates multiple output ports, including DC, USB, and AC, to accommodate different charging needs. The device is equipped with an LCD screen that displays essential information such as battery level, input status, and the status of DC, AC, and USB outputs. An integrated SOS mode and LED light provide additional utility for emergencies or low-light conditions.

Usage Features

Before initial use, it is crucial to fully charge the T300 by plugging it into a suitable power outlet. For optimal battery health, it is recommended to recharge the T300 when the battery level drops below 20% and to fully charge it every three months if not in regular use.

The power station operates through a series of intuitive buttons:

T300 Power ON/OFF Button (Button A): This is the master switch for the device. Pressing it turns the power station on or off, and also shuts down all active outputs when not in use.
SOS Mode & LED Light Button (Button B): This button controls the integrated light. A single press activates the LED light in standard mode. A double-click switches it to SOS mode. Pressing it again from SOS mode returns it to LED light mode, and another press will turn the light off. This function is available regardless of whether the main power button (Button A) is activated.
DC Output Power ON/OFF Button (Button C): To activate the DC output ports, ensure the main power button (Button A) is on, then press Button C. Pressing it again will shut down the DC outputs.
USB Output Power ON/OFF Button (Button D): Similar to the DC output, the main power button (Button A) must be active before pressing Button D to turn on the USB output ports. Pressing Button D again will shut down the USB outputs. If a USB-C port does not work with a specific device, it may be due to protocol endorsements, and using an AC adapter for charging is suggested.
AC Output Power ON/OFF Button (Button E): To use the AC output, first ensure the main power button (Button A) is active, then press Button E. Pressing it again will shut down the AC output.

The LCD screen provides real-time feedback on the device's status. It will enter Sleep Mode after 20 seconds of inactivity and will wake up when a charging cord is connected or any button is pressed. If the output power of a connected device is less than 5W, the T300 will enter hibernation after more than 8 hours. It can be "awakened" by charging or pressing any button. When not in use, it's advisable to turn off the output to conserve power.

The T300 supports pass-through charging, allowing it to charge connected devices via DC and USB outputs while the power station itself is being charged.

In case of an overload condition on an OUTPUT port, the T300 will automatically turn off the AC Output power. The white indicator light on the LCD screen will remain illuminated, and the DC OUTPUT Status will maintain its usual display.

Charging the T300:

The T300 can be charged via multiple methods:

AC Adapter Charging: Using the provided AC adapter, a full charge typically takes 6-7 hours.
Solar Panel Charging: The T300 supports 60W/80W/100W/120W Max Solar Panels (not included). Charging time varies from 5-9 hours depending on solar conditions and light intensity. It is important to place solar panels in direct sunlight and ensure the operating voltage is within DC12-26V.
12V Car Charger Charging: Using the provided car charger, a full charge takes approximately 7-9 hours when the car is running. The LCD display will show 100% battery power when fully charged.

Maintenance Features

To ensure the longevity and safe operation of the T300, several maintenance guidelines should be followed:

Cooling Fan: The T300 has an internal cooling fan that activates automatically during discharge or recharging, especially under higher output loads, to maintain an optimal internal temperature. The fan may operate intermittently. It is likely to start when the AC circuit is activated.
Storage: Store the product in a clean, dry environment, away from direct sunlight, and out of reach of children. If storing for more than one month, charge the battery to 50% capacity and keep it indoors at normal temperature. The maximum storage time should not exceed 6 months. Avoid storing in environments below -20°C or above 45°C, as extreme temperatures can impair performance and reduce service life.
Cleaning: Before cleaning, ensure the device is disconnected from all input power and output devices. Wipe with a clean, dry, non-soft cotton cloth. Remove any foreign objects, dirt, or obstructions from the vents on both sides. Do not allow debris to enter the equipment. Avoid using corrosive cleaners, solvents, or compressed air, as these can cause damage or short circuits. Do not use metal objects to clean the ports to prevent electric shock.
Regular Checks: Periodically check all ports and wall chargers for any debris, dirt, damage, and corrosion.
Battery Health: To maintain battery life, charge and discharge the T300 every 3 months under normal temperature if it's not used regularly.
Disassembly: Do not disassemble the device privately. Any service or repair should be performed by a qualified service person using identical replacement parts to ensure product safety.
Ventilation: Do not cover the equipment with towels, clothes, or other items, as this can restrict ventilation. Regularly observe the side vents for dust and foreign matter and clean them according to the manual's procedures.

Troubleshooting:

T300 does not discharge: Check if connecting wires are inserted correctly, if the total output power exceeds the rated output power, or if the equipment's temperature is too high.
T300 is not charging: Confirm that the AC socket and charging cable are fully inserted. Check if the battery pack wiring is in good condition and if the battery pack switch is on. If the device cannot be charged immediately after discharge, set it aside for an hour and try again, as it might be in over-temperature protection.

GRECELL T300 - Page 14

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