Boss Rechargeable Battery Pack

Never worry about power again! The Boss rechargeable amplifier power pack conveniently powers select Roland and Boss battery-operated mobile amplifiers.

The Rechargeable Amp Power Pack offers a convenient reusable power solution for select Roland mobile amplifiers that support battery operation, including the Cube Street EX, AC-33 Acoustic Chorus, and other models.

The one-piece design pops easily into the back of the amplifier, eliminating the need to fuss with multiple AA-size batteries.

But the benefits don't stop there, you also get up to twice the runtime over standard batteries, and the amplifier delivers output power and SPL that's nearly equivalent to using the AC adaptor.

Up to twice the runtime is possible compared with eight AA NiMH batteries with 2, 450 mAh capacity. Actual runtime and performance can vary with the conditions of use.


- Official Roland rechargeable battery pack for select amplifier models
- Easy to install and remove
- Longer runtime than using AA batteries
- Allows the amplifier to deliver more output power and SPL than what's possible with standard batteries
- Premium design with safe, efficient, and reliable NiMH (nickel-metal hydride) battery
- Can be charged with the AC adaptor included with the supported Roland amp model (excluding the BA-330)

- Compatible Products:
- Products that support the Rechargeable Amp Power Pack will be listed here as they become available.
- Unless noted, the AC adaptor included with the amplifier can be used for charging.
- CUBE Street EX Battery Powered Stereo Amplifier
- AC-33 Acoustic Chorus
- AC-33-RW Acoustic Chorus
- KC-220 Battery Powered Stereo Keyboard Amplifier
- BA-330 Stereo Portable Amplifier (optional PSB-12U or PSB-12U2 adaptor required for charging
- Power Supply: AC adaptor
- Output Voltage: DC 9.6 V
- Capacity: 4,000mAh
- Indicator: CHARGE FAIL
- Connectors: DC IN jack
- Battery charging time: Approximately 4 hours
- Expected battery life under continuous use: Approximately 20 hours
- [CUBE-STEX : OUTPUT POWER switch: NORMAL (Maximum power output: 25 W)]
- Dimensions: 184 (W) x 68 (D) x 41 (H) mm (7-1/4 (W) x 2-11/16 (D) x 1-5/8 (H) inches)
- Weight: 690 g (1 lb 9 oz)
- Accessories: Owner's Manual
- Applicable Models:
- CUBE Street EX
- AC-33
- AC-33-RW
- KC-220
- BA-330
Dimensions and Weight in Packaging
Base Item
Shipping Weight: 1.5 lbs
Shipping Dimensions: 8 x 3 x 2 in
Manufacturer Part Number (MPN): BTY-NIMH/A

For support or warranty questions, please contact the manufacturer:
Phone: 323-890-3700


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