I've got a Riva that's about 3 or 4 months old. I also have a Riva I just got in the mail 2 days ago from Liberty Flights. Both batteries are dead and will not charge. I have 2 chargers and 4 other Rivas that do charge. The blue light flashes on both batteries that won't charge when I hook them up to the charger, but the red light on the charger doesn't come on, and they are not charging. Should I send the new one back? .....Oh, and the chargers are brand new too. Thanks for any help you may have.
