Compatible Cordless Phone and Cordless Phone Battery models:
- AT&T 91300
- Northwestern Bell 35500
- Saft STB500
- Sony 1-528-638-11
- Sony BP-T21
- Sony SPP-52
- Sony SPP-62
- Toshiba FT-3005
- Toshiba FT-5005
- Toshiba FT-7007BK
- Toshiba FT-9007
- Toshiba RC004288
- Toshiba TRB-5000
- Uniden BBTY-0324001
- Uniden BT-801

This is a third party replacement to the original battery model
Physical Specifications
Weight: 0.06 lbs
Battery Specifications
Capacity 300.0
Capacity Units mAh
Chemistry NiCad
Connector Type Plug
Electrical Specifications
Voltage 2.40
Product Information
Item Dimension Units Inches
Item Height .60
Item Length 1.19
Item Width 1.13

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Ultralast Sony BP-T21 2.4V 300mAh NiCad Cordless Phone Battery, BATT-21

  • Model: BATT-21
  • UPC: 728286870215
  • Brand: Ultralast
  • Availability: 2
  • $5.95
  • $5.35



California Proposition 65

Warning: This product may contain chemicals known to the state of California to cause cancer, birth defects, or other reproductive harm. Visit p65warnings.ca.gov for more information.