12V Portable Lithium Power Bank – 30Ah & 40Ah

Keep your essentials powered at the bank or campsite with this 12V portable lithium power bank. Available in 30Ah and 40Ah capacities, it combines a lithium-ion battery pack with a built-in battery management system (BMS), USB-A and USB-C ports, a cigarette socket, an XT60 output and a DC 5.5 × 2.1mm (5521) charging/output connection in one compact case.

From charging your phone during a fishing session to running compatible LED lights or a camping fridge, it provides a convenient source of portable power without relying on a nearby mains socket.

Portable power for fishing and camping

• Charge compatible USB devices, including phones, tablets and other USB-powered essentials.
• Power suitable 12V LED lighting for your fishing or camping setup.
• Run compatible portable and camping 12V fridges, an application tested by ALTechnologies.
• Power compatible fish finder screens and other suitable low-voltage equipment.

Check your equipment's input voltage, current requirements and connector polarity before connecting. This pack is described as 12V, with an actual nominal voltage of 11.1V and a fully charged voltage of 12.6V. Compatibility depends on your device accepting the battery's operating voltage and staying within the output limits.

Choose 30Ah or 40Ah

Choose the 30Ah version for your portable power setup, or select 40Ah when extra battery capacity is your priority. Both capacities use the same case dimensions. Runtime depends on the equipment connected, its power consumption and how it is used.

Connections and standard output ratings

• 2 × USB-A ports.
• 2 × USB-C ports.
• Cigarette socket: maximum 10A, rated up to 120W at 12V.
• XT60 output: maximum 20A continuous, limited by the standard BMS.
• DC 5.5 × 2.1mm (5521) connection: charging input and 12V output for compatible equipment. Contact us to confirm the permitted output current for your application.
• Digital voltage display.

The 20A XT60 rating is not an additional allowance on top of the BMS limit. The total load must remain within the battery's limits, and each connection must stay within its own rating. The XT60 current rating does not apply to the DC 5521 connection.

USB fast charging and LED display

Fast charging requires a compatible device and cable. Actual charging speed depends on the device, cable, battery level and ports in use. The 20W specification applies to a compatible USB-C PD port, not a guaranteed combined output across all USB ports. Contact us if you need a particular charging protocol or simultaneous-output specification.

Battery specifications

• Battery chemistry: lithium-ion (Li-ion).
• Capacity options: 30Ah or 40Ah.
• Nominal voltage: 11.1V.
• Fully charged voltage: 12.6V.
• Charging voltage: 12.6V, using a suitable lithium-ion charger.
• Built-in battery management system (BMS).
• Standard maximum continuous XT60 output: 20A.
• Dimensions: approximately 160 × 130 × 90mm for both capacities.
• Warranty: 1 year.

Customise your power bank

Need a different connection arrangement or output specification? The ports and battery configuration can be customised to suit your requirements. BMS options up to 60A are available by arrangement, with the connections and wiring specified for the agreed application. These are custom builds, not the standard 20A version. Contact ALTechnologies before ordering to discuss your equipment and the configuration you need.

Included in the package

• One portable lithium power bank in your selected 30Ah or 40Ah capacity.
• One suitable 12.6V lithium-ion charger.
• One soft dark green carry bag with a handle for convenient carrying.

Standard 30Ah and 40Ah versions are held in stock. Contact us to discuss availability and lead times for a customised configuration.

Compare portable power banks

Compare nominal battery energy in watt-hours (Wh), rather than mAh alone, because manufacturers quote mAh at different voltages. Wh measures stored energy, not maximum output power or guaranteed usable energy.

Port counts above separate USB ports, cigarette connections and other DC outputs. Charging-only inputs are excluded; the ALTechnologies DC 5521 connection is included because it also provides an output. Individual port ratings do not imply that all maximum outputs can be used simultaneously. Fast charging requires compatible devices and cables. The ALTechnologies pack is 11.1V nominal and 12.6V fully charged, not a regulated constant 12V supply.