Here's a copy of an email I sent to Estes a few days ago. Haven't received a response yet; I figure maybe they're swamped after their big Black Friday sale. Anyway...I thought maybe someone here could offer some help. Often times, the charger itself will have a small polarity diagram showing which is which, but in this case...my Radio Shack charger has a Tamiya connector that will connect to the battery packs, but I want to replace that connector with the 5mm barrel plug in order to charge the batteries without removing them. No such diagram appears on the back of the Estes controller where the charging jacks are located, and my experience over the years has been that the center pin in a 5mm jack can be EITHER positive or negative....it just depends on how either the charger plug or charging jack was wired. Thanks!
Hello-
I own an Estes Pro Series Command Control Launch Controller (#2234). It has performed well over the years and the only thing I never liked was having to remove the 7.2 volt battery packs from the unit to charge them. I was recently re-reading the instruction sheets that came with the controller and I now see that there are two 5mm barrel plug jacks on the back of the unit that are labelled "BAT 1 CHARGE" and "BAT 2 CHARGE". The instructions say that the end user can make his/her own charging cable to connect the proper charger to the controller to allow charging of the batteries without removing them from the controller. I'd like to do this, but I just need to know one thing. In reference to the two jacks on the back of the unit that I mentioned above, is the pin in the middle of each jack the positive (+) or negative (-) in the charging circuit? Thank you in advance for your help!
