I charged my new 2s 5000 mah batteries last night and my charger brought them up to 8.4 not 7.4 like rated on the pack. I checked the charger setting and it is all right. Oh its a traxxas ezpeak plus 6amp. Is this right or should I be worried
That's correct. 4.2 volts per cell is fully charged.
don't store them fully charged either! once fully charged use within a day or so and store at around 3.85 volts per cell
That's perfect finishing voltage. +1 what 50 says about not leaving them "full." Charge 'em, use 'em!
Make it idiot-proof and along comes a better idiot
Ok thanks for the advice. Motor and esc will be here tomorrow so will get to run it tomorrow night with some luck.