I just bought a new EZ Peak charger for my Blast and whenI go to use it, it blinks green when I plug it up....like the battery is charged.....after I run the boat to it's full run. Anyone have any thoughts? I am VERY FRUSTRATED...... I spent over $40 for this thing......and I thought Traxxas was all high quality.....the boat is great BTW, but the charger it comes with takes 8 hours.....and I bought two more batteries to extend my runtime.