Best USB Pedal Power Supply (2026): 5 Picks Compared
Updated Oct 24, 2026 · By 
Jonah Mercer · Ranked from listed specifications · How we rank
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The RVONE leads this list for pedalboards: 10 isolated outputs covering 9V, 12V and 18V pedals, plus a USB output for a phone. The LEKATO adds a built-in 10000mAh battery for players who want to run 10 isolated outputs without a wall outlet.
The picks at a glance
Which one should you buy?
- Players who want 10 outputs for 9V, 12V and 18V pedals: RVONE Guitar Pedal Power Supply See pick 1
- Players who want a built-in 10000mAh battery: LEKATO Built-in 10000mAh Rechargeable Battery Guitar Pedal See pick 2
- Players who want 500 mA per output: GHOSTFIRE Pedal Power Supply TRUELY Isolated See pick 3
- Players who want a built-in 10000mAh battery: LOTKEY Guitar Pedal Power Supply See pick 4
- Players who want 10 outputs for 9V, 12V and 18V pedals: VSN Guitar Pedal Power Supply 10 Isolated See pick 5
Want the full range? Best Pedal Power Supply ranks the top pedal power supplies for every buyer, or browse all 19 guides.
The 5 picks, ranked
1Best Overall
RVONE Guitar Pedal Power Supply
- Isolated outputs
- Max current per output: 100 mA
- 1-year warranty stated
- 0.2 lb, the lightest here
It earns Best Overall with 10 isolated outputs for 9V, 12V and 18V pedals, plus a USB output and short-circuit protection.
Who it suits
- Players who want 10 outputs for 9V, 12V and 18V pedals
- Players who want a USB output for a phone
Skip it if
- You want more than 10 outputs
- You want an output above 18V
It has 10 outputs for 9V, 12V and 18V pedals, plus a USB output for a phone. Each output works independently with its own indicator light and short-circuit protection. It runs on an 18V power adapter, weighs 0.2 lb and carries a 1-year warranty.
2Runner-Up
LEKATO Built-in 10000mAh Rechargeable Battery Guitar Pedal
- Isolated outputs
- Max current per output: 300 mA
- 1-year warranty stated
It earns Runner-Up with a built-in 10000mAh battery, 10 isolated outputs and a 5V/1A USB port for emergency phone charging.
Who it suits
- Players who want a built-in 10000mAh battery
- Players who want 2 outputs at 300mA
Skip it if
- You want more than 10 outputs
- You want an output above 9V
It has 10 isolated outputs: 8 at 9V 100mA and 2 at 9V 300mA, plus a 5V/1A USB port. The built-in 10000mAh battery charges in about 6.5 hours over a Type-C port. It weighs 1.4 lb, has short-circuit protection on each port, and carries a 1-year warranty.
3Most Current
GHOSTFIRE Pedal Power Supply TRUELY Isolated
- Isolated outputs
- Max current per output: 500 mA, the most here
- 3-month warranty stated
It earns Most Current with 8 isolated outputs at up to 500 mA each, two adjustable voltage outputs and a 5V USB output.
Who it suits
- Players who want 500 mA per output
- Players who want two adjustable voltage outputs
Skip it if
- You want more than 8 outputs
- You want an output above 18V
It has 8 isolated outputs: six at 9V and two adjustable across 9V, 12V, 15V and 18V, plus a 5V USB output. Each circuit has its own short-circuit protection, and the supply delivers 27W. It weighs 0.4 lb and carries a 3-month warranty.
4Also Great
LOTKEY Guitar Pedal Power Supply
- Isolated outputs
- Max current per output: 100 mA
It earns Also Great with 7 isolated outputs, a built-in 10000mAh battery and a 5V USB port for phones.
Who it suits
- Players who want a built-in 10000mAh battery
- Players who want 7 isolated outputs
Skip it if
- You want more than 7 outputs
- You want an output above 9V
It has 7 isolated outputs: 6 at 9V 100mA and 1 adjustable at 9V 300mA, plus a 5V USB port. The built-in 10000mAh battery gives over 10 hours of life and charges in 6.5 hours. It weighs 1.1 lb and has short-circuit protection on each channel.
5Also Great
VSN Guitar Pedal Power Supply 10 Isolated
- Isolated outputs
- Max current per output: 100 mA
It earns Also Great with 10 isolated outputs covering 9V, 12V and 18V pedals, a USB charging socket and short-circuit protection.
Who it suits
- Players who want 10 outputs for 9V, 12V and 18V pedals
- Players who want cables in the box
Skip it if
- You want more than 10 outputs
- You want an output above 18V
The box holds the supply, a power adapter, 8 cables at 55cm, 2 polarity conversion cables at 20cm, 2 picks and a user manual. It has 10 outputs: 7 at 9V 100mA, 1 at 9V 500mA, 1 at 12V 100mA and 1 at 18V 100mA, plus a 5V 1A USB socket. It weighs 0.4 lb and has short-circuit and overcurrent protection.
Side by side
| Product | Outputs | Isolated outputs | Max current per output | Weight | Warranty |
|---|---|---|---|---|---|
| RVONE Guitar Pedal Power Supply | Not stated | Yes | 100 mA | 0.2 lb | 1-year |
| LEKATO Built-in 10000mAh Rechargeable Battery Guitar Pedal | Not stated | Yes | 300 mA | 1.4 lb | 1-year |
| GHOSTFIRE Pedal Power Supply TRUELY Isolated | Not stated | Yes | 500 mA | 0.4 lb | 3-month |
| LOTKEY Guitar Pedal Power Supply | Not stated | Yes | 100 mA | 1.1 lb | Not stated |
| VSN Guitar Pedal Power Supply 10 Isolated | Not stated | Yes | 100 mA | 0.4 lb | Not stated |
How we ranked these pedal power supplies
Every pick has at least 100 customer ratings on Amazon and a listing with real specifications. The order mixes two things: how each model compares on the specs below (higher share of the best value in this group scores more), and how widely it is bought. The spec score runs from 9.0 to 9.8 and only compares these picks with each other. A spec the listing does not state is left out and the other specs are re-weighted; a listing with fewer than 2 stated specs is scored at half. We do not test gear in person. Full method.
- Outputs weight 2
- Isolated outputs weight 2
- Max current per output weight 1
Buying advice: USB pedal power supply
Count the pedals you power
Outputs decide how many pedals run at once: the RVONE, LEKATO and VSN each have 10 outputs, the GHOSTFIRE has 8 and the LOTKEY has 7. Count your pedals first, then leave one spare output for the next pedal you add. Voltage matters too: the RVONE and VSN cover 9V, 12V and 18V, while the LEKATO covers 9V only.
Check current per output carefully
Current per output decides which pedals run safely: the GHOSTFIRE gives up to 500 mA per output, the LEKATO gives 100mA on eight outputs and 300mA on two, and the RVONE, LOTKEY and VSN give 100mA on most outputs. Match each pedal draw to an output that meets it, since a pedal that needs more current than its output gives will not run right.
Decide between battery and wall power
Battery power frees the board from a wall outlet: the LEKATO and LOTKEY each carry a built-in 10000mAh battery, with the LOTKEY giving over 10 hours of life. The RVONE, GHOSTFIRE and VSN run on adapters instead, which suits a fixed board that stays in one place. Check the USB port too: every pick here has one for a phone or a small light.
Frequently asked questions
How many pedals can one supply power?
It depends on outputs: the RVONE, LEKATO and VSN have 10 each, the GHOSTFIRE has 8 and the LOTKEY has 7. Count your pedals and match voltage and current per output before buying.
Can a pedal supply charge my phone?
Yes. Every pick here has a USB output for a phone. The GHOSTFIRE, LOTKEY and VSN give 5V 1A, and the LEKATO gives 5V/1A with a Type-C charging port.
Do I need isolated outputs for my pedals?
All five picks here have isolated outputs, so one pedal fault will not cut power to the rest of the board. Isolation also keeps each output independent, which is why every pick here carries short-circuit protection per output.
How long does a battery pedal supply last?
The LOTKEY gives over 10 hours of life from its built-in 10000mAh battery, which charges in 6.5 hours. The LEKATO carries the same 10000mAh size and charges in about 6.5 hours over Type-C.
Gear that goes with it
Best PedalboardTop pick: SOYAN 18" x 11.8" Guitar Pedal Board
Best Guitar PedalTop pick: Donner Tuner Pedal
Best Guitar CordTop pick: JSAUX Guitar Cable 10 ftMore pedal power supplies guides
Specifications and availability come from each Amazon listing on Oct 24, 2026 and can change. Check the listing before you buy.