The dew heater ate up a lot of the amps however and significantly reduced performance time so it would probably pay to have a controller in the loop. The power tank capacity seemed to improve after several uses so maybe there's an element of charge cycle top up over time. An expensive ...
Celestron 11 Dew heater questionPitter
Your problems are hugely compounded by trying to do everything at once. As you've learned, it can be difficult to get a good alignment. Some electronic parts perform poorly in the cold. SCT's are dew prone. You have been lucky if you havn't yet needed a dew shield and dew heater. ...
You must have one of those custom "heated" Non-heater dew shields... Cause on my non-heated dew shield, I can't "let the Dew Heater run" ... Sure you can ... you take the dew shield off and cap the scope which as Mike said you can't do if you've bought the combination he...
Wow, this looks great. I've been out with my 11" SCT and the dew strip, cord, heater controller and long cord to the battery is a pita! This looks super simple. I'd just stay with the 9V battery. But have to unplug every night but thats NOTHING compared to the regular set up....