This is a generic, equivalent one, 100% compatible. This 3.7V 1000mAh Replacement Li-ion battery is designed to compatible with TomTom CSTM2435SL GO 2435M 2435TM 2505 2505M.

Specifications:
* Product Type: generic/equivalent
* Battery Voltage: 3.7V
* Battery Capacity: 1000mAh
* Chemistry: Li-ion
* Dimension: 43.30 x 35.90 x 6.50mm
* Condition: new, 1 Year Warranty!

Compatible with the following Models:
CS-TM2435SL, CSTM2435SL, FKM1108005799

This battery is compatible with the following TomTom GPS units:
GO 2405
GO 2405M
GO 2405TM
GO 2435
GO 2435M
GO 2435TM
GO 2505
GO 2505M
GO 2505TM
GO 2535
GO 2535M
GO 2535TM

Package Included:
1 x 3.7V 1000mAh Replacement Battery for TomTom CSTM2435SL GO 2435M 2435TM 2505 2505M