More likely then not, your heli kit included a balancing charger specialy designed for the battery. Meaning that if your heli came with a 2 cell battery, it will only charge 2 cell batteries according to whatever the voltage and size of the battery is. Never try charging other batteries other then the one that came with the kit or replacements with the charger. Also, you could check the manufacturer's website and there should be a description about the charger shipped with the kit. Li-pos are known for swelling and possibly starting fires so preventive procaution is always wise. Many people will place thier recharging battery(ies) into a ceramic pot like a cooking jar or something. And you should always examine the battery checking for swelling and other deforms - replace the battery if you find any. You will also get more life out of the battery if you do not over-discharge or
run the battery down between charges. I generally fly my heli till i begin to notice significant power loss (50% power loss from the throttle).
I am new to the heli thing too but li-po batteries are all the same. Good luck and have fun!