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Rectangular black battery pack with two connectors, 131.20 by 21.30 by 18.60 mm

Batianda

Batianda Replacement Speaker Battery SRS-X55 X77 BTX300 7.4V 2600mAh 2 in 1 accessory

SKU CH-8A00-XHDHX

Replacement battery for Sony SRS-X55, X77 and BTX300 speakers delivering 7.4V and 2600mAh capacity

  • Compatible with Sony SRS-X55, SRS-X77 and SRS-BTX300 speakers
  • 4 V 2600 mAh capacity restores original runtime
  • 20 × 21.30 × 18.60 mm form factor fits the battery bay
  • Triple ROSH, CE and UL certification with multiple protection circuits
  • Weighs 234.5 g for a direct drop-in replacement

Replacement Battery for SRS-X55 X77 BTX300

This 7.4V 2600mAh replacement battery fits Sony speakers SRS-X55, SRS-X77 and SRS-BTX300. It delivers 19.24Wh capacity in a 131.20 x 21.30 x 18.60mm form factor weighing 234.5g. The pack carries ROSH, CE and UL certifications with built-in over-charge, over-discharge, over-heat, over-current and short-circuit protection. It is a direct swap for the original ST-04 battery.

Installation requires opening the speaker enclosure

The battery sits inside the speaker cabinet so you must remove the outer casing to access the compartment. No soldering is needed; the original connector plugs straight into the new pack. Before first use, charge the battery fully — long storage can trigger a self-protection state that prevents charging until several normal cycles wake it. Charging only works when ambient temperature is between 5 C and 35 C; outside this range the indicator goes out and the pack will not accept charge.

Suits owners of SRS-X55 X77 BTX300 speakers

This unit restores portable runtime for those three models without modification. Buyers who need a different voltage, higher capacity or a battery for another speaker series should look elsewhere. The pack is not user-serviceable beyond the single swap and cannot be adapted to other devices.

Highlights

  • Compatible with Sony SRS-X55, SRS-X77 and SRS-BTX300 speakers
  • 4 V 2600 mAh capacity restores original runtime
  • 20 × 21.30 × 18.60 mm form factor fits the battery bay
  • Triple ROSH, CE and UL certification with multiple protection circuits
  • Weighs 234.5 g for a direct drop-in replacement

Specifications

No published specifications for this item yet.

Questions about this item

How do I know the Batianda replacement battery is working after installing it in my SRS-X55 speaker?

The speaker should power on and hold a charge; the charge indicator will light while charging between 5 C and 35 C ambient temperature, and multiple charge cycles may be needed to wake the battery from its dormant state.

What comes in the box with the Batianda 7.4 V 2600 mAh battery and what must I buy separately?

The box contains the replacement battery only; no tools, screws or charging cable are included, so you will need a compatible screwdriver and the speaker's original charger.

Which Batianda battery version should I choose for my SRS-X77, SRS-BTX300 or SRS-X55 speaker?

This single 7.4 V 2600 mAh model with part number ST-04 fits all three speakers; there are no alternative capacities or voltages listed for these models.

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