Can I charge my bike battery with a car battery charger?

[JimO]

and if so do i have to disconnect it from the bikes electricals

[DrunkenMistake]

You should disconnect the battery before charging anyway,
But yes you can so long as its 12v and 12v

[Pussy]

and if so do i have to disconnect it from the bikes electricals

Yes... provided it's a 5 or 6 amp charger (maximum)
And I would disconnect the -ve terminal.

[JimO]

thanks people

[FROSTY:Me]

What kind of battery is fitted ? If a standard wet cell then any car charger will do the job. If its Gel cell then its better to use a charger that switches from wet to gel