Although my issue of the 300mv imbalanced battery issue is not a new topic, it happened to me after the first use only and there seems to be no customer service email link to address what is likely a defective battery or unit. I have followed all the recommendations but the charger keeps blinking 6 times red with one second pause. I only used the JD robot once to set it up and try a few moves, then as soon as it gave me the "battery running low warning" I shut it off, let it sit for and hour then tried to recharge and here I am. Robot sitting lifeless on my desk. I would prefer not to just return it to store but unless someone has a helpful thought, I don't even know how to get to Ez robot customer service.