The good news about airsoft rifles is that they will be including a battery that is rechargeable in addition to the charging cord. This will be saving you money and you from the hassle of purchasing these items separately. However, if you want to go to the shooting field with a tension-free mind, you can buy additional batteries that will serve you in case of a power shortage with one battery. Based on our experience, we strongly recommend you to use an intelligent charger that will be keeping your battery in a good position