Battery pack?

[Bassman Ron]

Hello out there in Talk Bass land,

Sorry I'm a tech/ electronics idiot. I have a Roland Micro Cube RX amp. It can run on 6 AA batteries or plugged into the wall. I sometimes use it where there is no 110 outlet available and it uses up the AA's kinda quickly to me. They're getting spendy. My question is, does anyone know if I can plug this into one of the new school power banks using the DC In or is there an adapter that fits into the AA battery area that can be plugged into a power bank? Another question. Can I use the Rec Out/Phones as a Direct Out into say a PA? Thanks out there!

 

[wjcstp]

It looks like this runs on 9v, and there are adapters that will take USB out put from a powerbank and convert it to 9v. I use one of these to power pedals rather than disposable batteries.

You’ll need to compare the amperage requirements of the amp with the output available from that kind of adapter to see if it would be sufficient. You’ll also need to get a DC connector that’s compatible with the power input for the amp (physical size and correct polarity for the plug).

There are also battery-based pedalboard power supplies that may provide higher output as a complete solution, but that wouldn’t leverage your existing power bank if that’s part of your goal.

 

[60bass]

Hello out there in Talk Bass land,

Sorry I'm a tech/ electronics idiot. I have a Roland Micro Cube RX amp. It can run on 6 AA batteries or plugged into the wall. I sometimes use it where there is no 110 outlet available and it uses up the AA's kinda quickly to me. They're getting spendy. My question is, does anyone know if I can plug this into one of the new school power banks using the DC In or is there an adapter that fits into the AA battery area that can be plugged into a power bank? Another question. Can I use the Rec Out/Phones as a Direct Out into say a PA? Thanks out there!View attachment 7365376

Roland themselves make DC adapters and they are available almost everywhere. I know Amazon has them I'm sure you can get them directly from Roland themselves probably Sweetwater eBay or Reverb would have them available as well definitely better than using batteries

 

[Redbrangus]

Roland themselves make DC adapters and they are available almost everywhere. I know Amazon has them I'm sure you can get them directly from Roland themselves probably Sweetwater eBay or Reverb would have them available as well definitely better than using batteries

The OP is looking for a battery-powered alternative to using the internal AA batteries. I don't think Roland offers anything like that.

 

[60bass]

The OP is looking for a battery-powered alternative to using the internal AA batteries. I don't think Roland offers anything like that.

Sorry I misunderstood what he was looking for. Roland definitely doesn't make anything like that.

 

[Wasnex]

The OP is looking for a battery-powered alternative to using the internal AA batteries. I don't think Roland offers anything like that.

They make one, but the Micro Cube Bass RX is not on the list of compatible products. Also it's pretty pricey.

 

[Wasnex]

Hello out there in Talk Bass land,

Sorry I'm a tech/ electronics idiot. I have a Roland Micro Cube RX amp. It can run on 6 AA batteries or plugged into the wall. I sometimes use it where there is no 110 outlet available and it uses up the AA's kinda quickly to me. They're getting spendy. My question is, does anyone know if I can plug this into one of the new school power banks using the DC In or is there an adapter that fits into the AA battery area that can be plugged into a power bank? Another question. Can I use the Rec Out/Phones as a Direct Out into say a PA? Thanks out there!View attachment 7365376

Consider buying a couple of Eneloop kits with 4 AA batteries and quick charger. Buy an addition 4 batteries with the same specs (12 total).

 

[el murdoque]

The Roland PSB 1U that comes with the cube provides 9V 2000mA.

Which means that any battery solution that is meant to power a pedalboard would work for that purpose.
The only thing is to find a powerbank that will allow 2A of current draw. You usually get away with a little less than that, though.

 

[Wasnex]

You’ll need to compare the amperage requirements of the amp with the output available from that kind of adapter to see if it would be sufficient.

Per the spec pages, the amp requires 186mA. This is a minimum.

The model for the factory power supply is PSB-1U. 9V at 2000mA (2A). A higher current rating is fine. The voltage must be 9VDC with center negative on the barrel connector.

 

[wjcstp]

This is the one i have, i'm sure there are other options around:

Birdcord USB to 9V Converter Cable | Songbird FX

Lets you power your 9-volt devices via USB!

www.songbirdfx.com

That Birdcord adapter can supply 1000mA, which is above minimum but half of what the factory PS supplies. It's center negative, and that page does list the Roland Cube Street as a supported use, which uses the same 6 x AA batteries as the OP's amp.

 

[mcnach]

Hello out there in Talk Bass land,

Sorry I'm a tech/ electronics idiot. I have a Roland Micro Cube RX amp. It can run on 6 AA batteries or plugged into the wall. I sometimes use it where there is no 110 outlet available and it uses up the AA's kinda quickly to me. They're getting spendy. My question is, does anyone know if I can plug this into one of the new school power banks using the DC In or is there an adapter that fits into the AA battery area that can be plugged into a power bank? Another question. Can I use the Rec Out/Phones as a Direct Out into say a PA? Thanks out there!View attachment 7365376

Rechargeables are probably the simplest option.
I have the Boss Dual Cube LX and use rechargeable batteries with it.

 

[96tbird]

I play with electric RC airplanes. Look to LiPo flat cells, get a huge capacity 2s pack (7.4v) and charger. These things can supply 20amps and with a tiny draw of you amp, will last for many hours.

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Don’t worry about it being 7.4v, liPo battery’s provide stable voltage output much longer than AA cells, which drop in voltage as they discharge. Li-ion will give you max voltage up until just before they’re discharged. You have to watch that you don’t drop below 6volts or the battery can be ruined. You can buy tiny battery cutoffs that prevent that happening that plug in between the battery and the battery box plug.

A fun little project.

Solder the battery plug onto the terminals in the battery box and the plug can stay stowed in the box. Pop it open, plug in your pack and go.

I made a power supply for
My little pedal case using a 3s pack 11.1 volt and it lasts for weeks before needing a recharge. The power box has a battery voltage display (to prevent over discharging) and a “voltage buck” that drops voltage from 11.1v to 9v. The pack tucks in beside the power box.