This is a generic, equivalent one, 100% compatible. This 3.7V 1200mAh Replacement Li-ion battery is designed to compatible with TomTom CS-TMK1SL, CSTK1SL, Fm0804001846.

Specifications:
* Product Type: generic/equivalent
* Battery Voltage: 3.7V
* Battery Capacity: 1200mAh
* Chemistry: Li-ion
* Dimension: 43.00 x 35.00 x 9.00mm
* Condition: new, 1 Year Warranty!

Compatible with the following Models:
CS-TMK1SL, CSTK1SL, Fm0804001846

This battery is compatible with the following TomTom GPS units:
For TomTom One XL HD Traffic

Package Included:
1 x 3.7V 1200mAh Replacement Battery for TomTom CS-TMK1SL CSTK1SL Fm0804001846