Portable Guitar Pedal Power Supply 7 Isolated DC Output - Battery

In this review the lotmusic portable guitar pedal power supply is evaluated as a compact, battery-powered solution for pedalboard users who need reliable, low-noise power away from a wall outlet. The bottom line: it is best for gigging musicians or hobbyists who want a portable pedal power source with multiple isolated outputs and a built-in rechargeable battery that reduces hum and removes the need for constant AC access. The review focuses on real-world use, battery life, noise performance, and how the isolated outputs behave under load.

Key Features

• Seven isolated outputs: Six fixed 9V 100mA outputs plus one adjustable 9V 300mA output let users run a mix of low-current pedals and one higher-draw device without channel interaction.
• Built-in 10000mAh battery: The 3.7V/10000mAh rechargeable battery provides portable power for extended sessions so players can run pedals for hours without AC power.
• Short circuit and overcurrent protection: Each isolated channel has protection so a fault on one output will not shut down or damage the others, improving reliability on stage.
• Low noise design: A built-in noise filter and aluminum alloy housing help reduce hum and heat, producing a cleaner signal chain in sensitive setups.
• USB charging port: The included 5V 1A USB port can charge phones or small devices from the pedal power supply, adding utility between shows or rehearsals.

Who It's For

This unit is aimed at gigging guitarists and bassists who need a compact, rechargeable power brick to run multiple 9V pedals and prefer isolated outputs to avoid ground loops and cross-channel faults. It is also useful for players assembling a small mobile pedalboard who value low noise and a tidy, battery-powered setup.

Players who require high-current digital pedals or large multi-effect units that need more than 300mA on several outputs should look elsewhere or pair this with separate high-current supplies; likewise, users who exclusively power large pedalboards from AC and never need portability may prefer hardwired desktop supplies with higher total output.

Pros & Cons

Pros

• Isolated outputs with per-channel short circuit protection prevent one bad pedal from affecting the rest of the chain.
• Built-in 10000mAh battery provides true portability and can keep a small board running for many hours between charges.
• Notable reduction in hum and noise thanks to the internal filter and aluminum housing.
• USB 5V port adds convenient device charging on the road.

Cons

• Limited current on most outputs (100mA) means some higher-draw digital pedals may not run on the fixed channels.
• Battery recharge time and runtime will vary by load; heavy setups will reduce the quoted hours of use.

Specifications

Brand	lotmusic
Outputs	6 x 9V 100mA, 1 x adjustable 9V 300mA, 1 x 5V 1A USB
Battery	Built-in 3.7V / 10000mAh rechargeable lithium battery
Input	AC 100V-240V
Protections	Short circuit and overcurrent on each isolated output
Housing	Aluminum alloy with heat dissipation design

Our Verdict

The lotmusic portable power supply is a sensible purchase for players who need a low-noise, isolated, battery-powered solution for small to medium pedalboards. With clear benefits in portability, protection per channel, and reduced hum, it offers strong value for gigging musicians and hobbyists; just verify individual pedal current requirements before relying on the fixed 100mA outputs for higher-draw effects.

Frequently Asked Questions

How long does the battery last?
Runtime depends on pedal load, but typical small pedalboards run for many hours from the 10000mAh battery; heavier draws will shorten run time.

Will a digital multi-effect run from this supply?
Many digital units need more current than 100mA on multiple outputs; use the adjustable 300mA output for a higher-draw pedal or choose a dedicated high-current supply for multi-effect units.

Does a short on one pedal shut the whole unit down?
No, each of the seven outputs is isolated with short circuit protection so one faulty channel will not affect the others.