Hello friends, Today I bought a mini wildcat rc boat, as instructed I plugged the peak charger in the 12V connector in my car, according to the manual, it should've started beeping and flashing a red light, mine didn't, also when I connected the 7.2V battery to the charger it started to beep for a few seconds, then it went off again, could it be a bad charger or did I do something wrong? Thx in advance.