So first time some of the supplier super fast delivery and very reasonably priced. Battery I can only say fits hargenau the Tom Tom Go 910 who the experience the same problems with his navi tom tom go 910 should it only works with network operation or vehicle operation, set this battery installation instructions, although only in English will man on youtube and man should take time and disassemble during assemble. who was informed about tom tom go hard to believe because, according tom tom go of is not battery barter the information. THIS IS A COMPLETE bullshit !!!!!!!!!! have looked upon my video 2 to 3 times and had no problems apart and attach the battery pack! and the navi radio again !!