So, I needed to disconnect everything from two of my batteries, lift the top off the battery hold down bracket, to access replacing my gas/water separating filter attached to the interior of the transom.No big deal, get it all done in about 15 min. Unfortunately, I forgot to label or take a picture of what battery wire clusters went to which battery posts . To complicate matters a little, I run a 36V trolling motor set-up, so re-connecting everything correctly was a little confounding.I call a local trolling motor shop, and the young gentleman I get on the line tried to walk me through what he thought was the correct way to re-connect everything, only confusing me even more.Go inside, get online, and pull up a schematic for wiring three batteries in series for a 36V set-up.Back to the boat and start experimenting with this connection here and that connection there.Two hours later, I get lucky and everything is as it should be!To prevent future confusion, I wire-tied all of the positive/negative wire clusters and attach Dymo labels on each wire cluster for future reference………….lesson learned, the hard way!Has anyone else fallen victim to this conundrum?