BiXPower 74Wh / 20,000mAh 9V Portable Battery

9V DC Output • 100W USB-C PD • Wireless Charging • AC Charger Included

The BiXPower BAT-UC70B-9V is a compact, high-capacity portable battery designed to provide stable 9V DC power for compatible electronic devices while also functioning as a powerful USB-C PD power bank.

The included special USB-C to 9V power cable provides 9V DC output up to 3A (27W maximum) through a 5.5 × 2.5mm center-positive barrel connector.

In addition to 9V output, the battery features two USB-C ports, one USB-A port, wireless charging, and a digital battery gauge. USB-C1 supports up to 100W Power Delivery, making the battery suitable for many laptops, tablets, smartphones, cameras, and other USB-C devices.

Key Features

Stable 9V DC Output
The included special USB-C power cable provides 9V DC output up to 3A (27W maximum) for compatible 9V devices.

5.5 × 2.5mm Center-Positive Connector
The included 9V power cable uses a 5.5mm outer diameter × 2.5mm inner diameter barrel connector with inside positive (+), outside negative (−) polarity.

High Capacity — 74Wh / 20,000mAh
Provides substantial portable power in a compact battery weighing approximately 1 lb.

100W USB-C Power Delivery
USB-C1 supports up to 100W output, while USB-C2 supports up to 45W output.

Up to 145W Combined USB Output
The two USB-C ports and USB-A port can operate simultaneously, with a maximum combined output of up to 145W.

Fast Recharging
An AC charger is included. The battery can be fully recharged in less than approximately 2 hours with the included charger. USB-C1 can also accept up to 100W input when used with a compatible 100W USB-C PD charger.

Charge While Using the Battery
The battery supports pass-through operation, allowing you to recharge the battery through one USB-C port while another port supplies power to a compatible device.

Wireless Charging
Built-in wireless charging provides convenient cable-free charging for compatible smartphones and other wireless-charging devices.

Digital Battery Gauge
The LED display clearly shows the remaining battery capacity.

Built-In Safety Protection
Integrated protection helps protect against overcharging, over-discharging, over-current, short circuits, and other abnormal operating conditions.

No Memory Effect
The lithium-ion battery can be recharged at any time without waiting for it to be completely discharged.

Also Powers USB-C Devices

The BAT-UC70B-9V is more than a 9V battery. It can also be used as a high-capacity USB-C PD power bank for compatible laptops, tablets, smartphones, cameras, and other USB-C devices.

Compact & Portable

Measuring approximately 6 × 3 × 1 inches and weighing about 1 lb, the BAT-UC70B-9V combines high capacity with a compact design that is easy to carry, store, or take on the road.

Specifications

Using the Battery as a 9V Power Source

The included special USB-C to 9V power cable allows the BAT-UC70B-9V to provide a stable 9V DC output up to 3A (27W maximum).

Connect the USB-C end of the special 9V cable to the battery, then connect the 5.5 × 2.5mm barrel connector to your compatible 9V device.

Charging the Battery

A compatible AC charger is included with the standard BAT-UC70B-9V package. The battery can be fully recharged in less than approximately 2 hours with the included charger.

The battery can be charged through either USB-C1 or USB-C2. When using a USB-C charger rated above 45W, use USB-C1. USB-C1 can accept up to 100W charging input.

With a compatible 100W USB-C PD charger, the battery can be fully recharged in approximately 1 hour.

Important: Use only one USB-C input port at a time to charge the battery. Do not connect chargers to USB-C1 and USB-C2 simultaneously.

Charge the Battery While Using It

The BAT-UC70B-9V supports pass-through operation. You may recharge the battery through one USB-C port while using another port to power a compatible device at the same time.

Wireless Charging

1. Press the power button to activate wireless charging.
2. Place a compatible wireless-charging device over the wireless charging area on top of the battery.
3. Charging should begin within approximately 1–2 seconds after the device is detected.
4. If no compatible device is detected, wireless charging will automatically turn off after approximately 25 seconds.
5. Wireless charging can also be turned off manually by double-pressing the power button.

Package Contents

• 1 × BAT-UC70B 74Wh / 20,000mAh Battery
• 1 × USB-C to 9V DC Power Cable — 5.5 × 2.5mm, Center Positive
• 1 × AC Battery Charger

The AC charger and special USB-C to 9V power cable are included with the standard BAT-UC70B-9V package.

Important: Check Your Device Polarity

The included 9V power cable has center-positive polarity: the inside contact is positive (+), and the outside contact is negative (−).

Do not connect the 9V output cable to a device that requires a different voltage. Incorrect voltage or polarity may damage the connected equipment.

Optional Polarity Changer

Some 9V devices require center-negative polarity instead of center-positive polarity.

If your device requires center-negative polarity, an optional 5.5 × 2.5mm polarity-reversing adapter can be connected to the included 9V power cable to reverse the output polarity.

Optional Car / Truck Charger

An optional 45W USB-C PD car charger allows you to recharge the battery from a 12V car or 24V truck cigarette-lighter/accessory socket.

The optional car charger can fully recharge the battery in less than approximately 2 hours under suitable operating conditions. The car charger is optional and is not included with the standard package.