SPECIFICATIONS

Application: Computer

Battery Type: 3.7V flat-top 18650 batteries (not included)

Brand Name: Gaqqee

Choice: yes

Condition: New

Dissipation Power: Low Power Consumption

High-concerned chemical: None

Operating Temperature: Details Page

Origin: Mainland China

Package: TQFP

Quantity: 1

Supply Voltage: Details Page

Type: Module

is_customized: Yes

Product Features:

1. Input voltage = device operating voltage = battery charging voltage = battery full charge voltage

2. Utilises operating voltage to fully charge lithium batteries with zero voltage drop, ideal for electronics professionals

3. Compatible with standard switching power supplies for charging; incorporates constant current circuitry, eliminating need for dedicated lithium battery chargers

4. Zero-switching time ensures seamless transition, making this a true uninterruptible power supply (UPS).

5. Integrated charging status indicator provides clear, intuitive feedback, highly suitable for product integration.

6. High efficiency: (11.1V - 0.3V) / 11.1V × 100% = 97.3%; discharge efficiency approaches 100% as battery series voltage increases.

Product Specifications:

Charging indicator: Red light illuminates during charging, extinguishes when fully charged

Capacity: Accommodates battery capacity: 3 × 3.7V × 3400mAh = 37Wh (batteries supplied by user)

Rated output power: 12V 2A = 24W

Voltage regulation: Unregulated; direct output from 3-cell series configuration. Full charge: 12.6V; low voltage protection: 8V; voltage fluctuates with charge level

Application Type: Suitable for unattended scenarios requiring automatic charge/discharge management, such as optical modems, routers, surveillance systems, aquarium pumps, etc.

Battery Type: 3.7V flat-top 18650 batteries (not included)

Charger Type: Built-in 0.4A current-limiting module; can be charged using 12-13V power supply (recommended 12.7V)

Charging Power: 12V 0.4A = 4.8W; Input power ≥ (Load power + 5W)

Protection Circuit Parameters: Overcharge protection 4.25V*3; Low voltage protection 2.75V*3; Overcurrent detection voltage 0.1V ± 0.025V

Operating Temperature Range: -20°C to 60°C

DC connector standard: DC 5.5 × 2.1 mm (positive inner, negative outer)

Important notice: Never perform short-circuit protection tests on the UPS function protection board, as this may cause diode breakdown. Short-circuit protection only activates after diode breakdown.

Package contents:

UPS battery box × 1 (batteries not included)

Cable × 1