So we bought a 2nd battery for the Typhoon H. When I left work last Friday, I left the battery in the drone, but had the drone off. When I got back Monday(today), I plugged the battery into the charger, and the charger's light just blinks green, meaning it's "ready to charge", and then every time I take the battery out of the charger, it goes to the Blue "error" light. Any reason why this is happening? The other battery that we have for the drone charges just fine so I can't believe it's a bad charger. Note: I did read that if you drain the battery they can be hard to get charged back up, is this true? Anything I can try to get it charging again? I've tried the suggestion of plugging it in via the car charger with no luck.