I currently have some battery chargers I got in a trade and don't need.
Passport Ultra Lipo $45 obo Great charger for a beginner. It is a 1 button charger with power supply built in. Balances while you charge.
Next one is a ICE competition charger. $65 obo. I personally have never used it but I understand it to be an excellent charger. It does need a power supply with it.