DIY DC UPS Power Bank Box 5V 9V 12V Output 6×18650

This lead-free DIY UPS power bank box allows easy battery replacement and supports 6 cylindrical flat-head 18650 batteries (not included). It is ideal for users seeking uninterrupted power for devices like routers, modems, and surveillance cameras.

Designed to provide automatic charge and discharge management without manual intervention, it enables a stable and reliable power supply for multiple devices with minimal effort.

The power bank offers independent DC outputs at 5V, 9V, and 12V, covering common voltages required by optical modems, routers, and security cameras, providing flexibility across various devices.

Rated for peak output power up to 60W, this UPS box ensures stable operation through strict quality control measures to extend service life.

Equipped with overcharge, low-voltage, and overcurrent protection systems for safe and durable usage within a temperature range of -20°C to 60°C.

Compatible only with flat-head 3.7V 18650 batteries, recommended for power applications to maintain consistent cell parameters.

Features an internal current-limiting charging circuit compatible with 12-13V adapters; sufficient input adapter power is needed for load and battery charging (minimum 6W).

Ensure correct battery installation: spring contacts the negative terminal and copper plate contacts the positive terminal to avoid damage.

Voltage is not stabilized and fluctuates depending on battery charge; suitable for high-power devices not requiring stable voltage output such as electric motors, LED lights, audio systems, solenoid valves, and printers.

• Maximum battery capacity: 74Wh (6 × 3.7V, 3400mAh batteries)
• Output power: Up to 60W (12V 5A), actual power depends on battery
• Output voltages: 12V (3-5A), 9V (1A), USB 5V (2-3A)
• Charging input: DC 5.5×2.1mm, adapter 12-13V
• Protections: Overcharge 4.25V, low voltage 2.75V, overcurrent 0.1V ±0.025V
• Operating temperature: -20 to 60°C

• Solder-free battery box
• 0.3-meter connecting cable