BBM supplies the aftermarket CS-SRX310SL Battery for the Sony Speaker model numbers SRS-X3 and SRS-XB2 - this battery is a drop in replacement for the Sony ST-01 Battery, offering 7.4V/2600mAh of Power in Li-Ion Chemistry.
This battery will fit the following models:
Sony: SRS-X3, SRS-XB2, SRS-XB20
This battery will replace the following part numbers:
Sony: ST-01
Battery Attributes:
Capacity: 2600mAh
Type: Li-ion
Voltage: 7.4V
Dimension: 65.85 x 36.80 x 19.10mm
BIN# CS-302