CS-SBA370SL Battery – Sennheiser 450 TRAVEL 550 Travel MM 400 MM 400-X MM 450 MM 450-X MM 500-X MM 550 MM-550-X PCX 360 BT PX 210 BT PX 310 BT PX 360 PX 360 BT PXC 310 0121147748 BA 370 PX BA370… Replacement

CS-SBA370SL Battery Replacement

Premium replacement battery for Sennheiser 450 TRAVEL 550 Travel MM 400 MM 400-X MM 450 MM 450-X MM 500-X MM 550 MM-550-X PCX 360 BT PX 210 BT PX 310 BT PX 360 PX 360 BT PXC 310 0121147748 BA 370 PX BA370 BA-370PX. 270mAh 3.7V Li-Polymer — engineered to original specifications and certified for safe transport.

Model No. CS-SBA370SL
Fits Sennheiser 450 TRAVEL 550 Travel MM 400 MM 400-X MM 450 MM 450-X MM 500-X MM 550 MM-550-X PCX 360 BT PX 210 BT PX 310 BT PX 360 PX 360 BT PXC 310 0121147748 BA 370 PX BA370 BA-370PX
Capacity 270mAh
Voltage 3.7V
Energy 1.0Wh
Chemistry Li-Polymer
Dimensions 38.40 x 30.70 x 6.60mm
Weight 9g
OEM Part No. 0121147748, BA 370 PX, BA-370PX, BA370

Compatible Devices

  • 450 TRAVEL
  • 550 Travel
  • MM 400
  • MM 400-X
  • MM 450
  • MM 450-X
  • MM 500-X
  • MM 550

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  • CS-SBA300SLSennheiser IS 410 IS410 IS-410 IS410 TV IS4200 IS-4200 RI 410 RI410 RI-410 RR 4200 RR4200 RS 4200 RS 4200 TV-2 RS4200 RS-4200 Set 830 Set 840 Set 900 500898 HC-BA300 NCI-PLS100H
  • CS-MTL686SLMitel 6863i 6865 6865i 6867i 6869 6869i 6900 6905 6910 6920 6930 6940 6970 50005711 50006764
$22.99per unit · free US shipping
Buy Now — $22.99 Full Spec Sheet
  • Volume discounts from 10 pcs (up to 10% off)
  • UN 38.3 certified + MSDS/SDS provided
  • Free US shipping on every order
  • B2B invoicing & wholesale support

FAQ

Is this battery compatible with my device?

The CS-SBA370SL is a replacement battery for Sennheiser 450 TRAVEL 550 Travel MM 400 MM 400-X MM 450 MM 450-X MM 500-X MM 550 MM-550-X PCX 360 BT PX 210 BT PX 310 BT PX 360 PX 360 BT PXC 310 0121147748 BA 370 PX BA370 BA-370PX. See the compatible device list above for verified fits. Match your original battery's model or OEM part number before ordering.

What certifications does this battery have?

All Estry batteries ship with UN 38.3 transport certification and MSDS/SDS documentation, required for compliant air and ground shipping.

Do you offer wholesale pricing?

Yes — volume discounts apply automatically: 5% off at 10+, 6% at 20+, 8% at 50+, and 10% at 100+ pieces. US shipping is free on every order.