The Protel 6 Volt Battery is a high-quality, long life Nickel Cadium battery which is compatible with Protel CTR201 series payphones.

- Compatible with Protel circuit board models CTR200B, CTR200BB+ (CTR201)
- All batteries are not alike. G-TEL uses only high quality, long life cells.

Technical Specifications: 6 Volt, 500 mAh (5 x 1.2V cells) Nickel-Cadium with Molex SL type plug.