This is a generic, equivalent one, 100% compatible. This 3.7V 1100mAh Replacement Li-ion battery is designed to compatible with TomTom AHL03711001 4CF5.002.00 4CF5.002.00.

Specifications:
* Product Type: generic/equivalent
* Battery Voltage: 3.7V
* Battery Capacity: 1100mAh
* Chemistry: Li-ion
* Dimension: 52.00 x 34.00 x 5.50mm
* Condition: new, 1 Year Warranty!

Compatible with the following Part Number:
CS-TM540SL, CSTM540SL, AHL03711001, 4CF5.002.00

This battery is compatible with the following TomTom GPS units:
TomTom Go 540
TomTom Go 540 Live
4CF5.002.00

Package Included:
1 x 3.7V 1100mAh Replacement Battery for TomTom AHL03711001 4CF5.002.00 4CF5.002.00