Graupner minilader 10 (charger) beeping when connected
 

As the title doesn't say, the battery (not the charger) beeps when connected to the charger and getting charged.
Didn't find this in the user manual mainly because lrp recomends you to buy their own chargers, which i don't have.

Charger - Graupner minilader 10
Car - LRP S10 blast BX Brushless RTR
Battery - LRP hyper pack 5000 NiMH

Not sure if the beeping is a part of the proccess, but i don't want to charge my newly bought battery for 6 hours and then realize that it was burnt to death.
Any help will be apricieted. :)