About this replacement
Designed for Fiio, Sony devices. Compatible models include BTR3K, WF-L900 Charging Case, WH-CH400, WH-CH500, WH-CH510, WH-CH520. Replacement part numbers include ACE621733. Key specifications: 3.7V, 280mAh, Li-Polymer.
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Fiio BTR3K Replacement Battery - Replaces ACE621733
$21.32In stock
3.7V280mAhLi-Polymer
Fits 6 models · Replaces 1 part number
Ships from Hong Kong Warehouse · Delivery in 28-45 days
$21.32Quantity 1
Why this battery
- Compatibility checked for listed device models
- Protected, secure checkout with tracked fulfillment
- Battery safety documents available where applicable
Compatibility
Check your original model and part number before ordering.
Compatible brands
Fit Model
Part Number
Compatibility is supplied by 2 compatible brand groups.
Specifications
Battery typeLi-Polymer
Voltage3.7V
Capacity280mAh
Wh1.04Wh
Dimensions32.00 x 17.40 x 5.70mm
Weight
Connector
ChemistryLi-Polymer
Shipping and safety
UN number:
Standard carrier options available
·
UN38.3 documentation pending
Return warning
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