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Black rectangular AC adapter with detachable mains cord

2-Power AC adapter 20V 3.42A 85W for Brookstone Big Blue Party speaker

SKU CH-FXZ8-XZARX

Replacement 20 V 3.42 A 85 W charger for Brookstone Big Blue Party speaker

  • Battery type96 W
  • Battery voltage rating20 V
  • Power adapter voltage20 V
  • Power adapter current3.42A
  • Power adapter wattage85 W
  • Product colorBlack
  • 85 W output powers the speaker at full volume
  • 20 V 3.42 A matches the original charger specification
  • 100–240 V input works on any mains supply worldwide
  • Built-in over-voltage, over-current and short-circuit protection
  • Compact black design fits Brookstone Big Blue Party speaker

Power and compatibility

This 2-Power AC adapter is built as a direct replacement charger for the Brookstone Big Blue Party Wireless Wi-Fi Speaker, models 849504 and 849504p, and matches Brookstone part number KSAS0451800200HU. It supplies 20V at 3.42A for an 85W output, with a universal 100-240V, 50-60Hz input and CE/FCC/RoHS certification.

Check your speaker before ordering

Verify that your speaker is the Big Blue Party Indoor-Outdoor Bluetooth Wireless Speaker carrying the model numbers or part number listed above, as this adapter is not intended for other Brookstone models or generic 18V or 20V devices. Confirm the speaker’s required input voltage and connector polarity match the adapter’s 20V output to avoid damage.

Build quality and daily use

The adapter features safety-focused circuitry with overvoltage, overcurrent, short-circuit and overheating protections, housed in a black compact body with a sturdy, flexible power cord that resists tangling and fraying during frequent transport. Its lightweight design makes it easy to store or carry for indoor and outdoor gatherings, delivering stable power for high-volume playback and WiFi connectivity.

How it compares

Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.

Price $1,670.99
Pricier than about 91% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand name2-Power
Model nameDoes Not Apply
Part numberDoes Not Apply
Product colorBlack
Product typeCharger
Power
Battery type96 W
Battery voltage rating20 V
Power adapter voltage20 V
Power adapter current3.42A
Power adapter wattage85 W
Compatibility
Compatible withFor Brookstone Big Blue Party Wireless Wi-Fi Speaker, For Brookstone

Questions about this item

Does the package include a mains lead or do I need to buy one separately?

The adapter comes with a detachable power cord that fits standard household outlets, so no separate mains lead is required.

The specs list both 18 V and 20 V outputs — which one should I match to my Brookstone Big Blue Party speaker?

The manufacturer highlights state an 18 V output and list the Brookstone part number KSAS0451800200HU; choose the 18 V version to match the original supply.

Will the 85 W rating actually power the speaker at full volume without overheating?

The 85 W (20 V, 3.42 A) rating meets the speaker's peak demand, and built-in over-temperature protection prevents overheating during extended high-volume playback.

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