Secondhand G-Life Elif 5 FLW 2.9kg Portable Oxygen Concentrator

Objective AI Report

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Report date: 25.02.2026

G Life ELIF Portable Oxygen Concentrator Analysis Report

Device Identification, Brand and Model Information

The examined visuals belong to a portable medical oxygen production and support unit. Upon examination of the logos on the front face of the device and below the control panel, the brand was clearly identified as G Life and the model name as ELIF. The product falls into the category defined as Portable Oxygen Concentrator (POC) in literature. The “Made in Türkiye” inscription on the battery label provides information about its origin.

Visual Originality and Product Integrity

Following a detailed examination of the device casing, screen panel placement, label quality, special carrying bag, and technical labels on the battery unit; the product is assessed to have been manufactured using industrial design molds and to be original factory output. The print quality of the “G Life” branded logos and the placement of labels containing the warning “Long press to turn on or off” indicate a professional manufacturing process.

Areas of Use

This device is a portable unit that separates air from the atmosphere to provide high-concentration oxygen to the patient. It is specifically designed for patients with Chronic Obstructive Pulmonary Disease (COPD), respiratory failure, and those requiring long-term oxygen therapy (LTOT) at home or in mobile environments. Thanks to its battery-powered and portable design, it aims to meet patients’ oxygen needs during travel or in outdoor environments.

Quantity and Accessory Inventory

A total of 4 main parts and complementary equipment were identified in the visuals:

• 1 unit G Life ELIF main unit (Portable Oxygen Concentrator).
• 1 custom-made grey carrying bag with shoulder strap for the device.
• 1 external rechargeable battery unit (POC Rechargeable Battery).
• 1 AC/DC power adapter and power cable.
• Carrying straps for the bag.

Physical Condition and Cosmetic State

The device’s outer casing is made of white hard plastic, and the top handle is made of black plastic. During the examination, no cracks, deep scratches, discoloration (yellowing), or signs of dropping were found on the casing. The fabric texture of the carrying bag appears solid, with no unravelling or tears detected in its stitching. The strap attachments and metal connecting clips are corrosion-free and functional. In terms of overall condition, the device can be categorized as “lightly used” or “near new”.

Screen and Electronic Function Analysis

The blue LED-backlit digital screen on the device’s top panel is observed to be operational. In different visuals, the screen was analyzed to present the following data:

• Operating Time: The inscription “002 1.3” (Accumulated hours) is readable on the screen. This indicates that the device’s total operating hours are quite low (possibly around 21 hours or for testing purposes).
• Level Adjustment: The inscriptions “Level 01” and “Level 05” are visible in the visuals. This proves that the device’s oxygen flow/pulse level is adjustable and that the electronic board responds to these commands.
• Warning LEDs: The panel features “Alarm”, “Low concentration”, “Breath signal”, and “Battery” indicators. At the moment of the visual, the 100% battery LED and the operating signal are observed to be active.

Battery Technical Analysis and Status

A large, black battery pack, externally connected, is present in the system. The label and indicators on the battery were examined in detail:

• Type: Li-Ion Battery (Rechargeable Lithium Ion).
• Cell Structure: 18650×8 (consisting of 8 units of 18650 cells).
• Voltage/Current: 3.7V based cells are used, and the inscription PCB 4S10A indicates that it has a nominal operating voltage of 14.8V with 4 series (4S) connection. Capacity values are stated as 3200-3500mA.
• Test Button and Indicator: When the “TEST” button on the battery is pressed, all the 25%, 50%, 75%, and 100% LEDs illuminate, indicating that the battery is fully charged and its charge retention capacity (for that moment) is satisfactory.
• Physical Condition: There is no swelling, cracking, or leakage mark on the battery casing. A portion of the gelatin coating is still on it.

Label and Serial Number Information

The label on the battery pack contains the following identifying information:

• Product Description: POC RECHARGEABLE BATTERY.
• Serial Number (S/N): POC-22V1233.
• Barcode Number: 8681371828651.
• Technical Specification: The inscription “Long-life 1st Quality Batteries have been used.” is present.

The “G Life ELIF” label and the usage warning label (Long press…) on the main unit of the device are legible and intact.

Accessories and Connection Points

The power adapter has a standard “barrel” type (round tip) connector. No crushing, breakage, or splice marks were observed in the cable insulation. The grey carrying bag is specially designed to ensure that the device’s screen and air intake/output grilles are not covered. The stitching on the bottom and side parts of the bag is strong.

Current Malfunction and Risk Analysis

Within the limits of visual inspection, no broken parts, screen errors, or “System Fail” warnings were observed on the device. The screen displaying “002 1.3” hours indicates that the device’s brain is functioning correctly. The illumination of all battery LED indicators reduces the likelihood of “dead cells” in the battery. As there is no noticeable deformation in the mechanical components, the immediate physical malfunction risk is assessed as low. The adapter connection points are clean.