This might be a long winded story, but I need help. I recently decided to change the battery in my 2014 ninja 300 since it was starting to have charging issues. I ordered a WEIZE YTX9-BS from Amazon, and was sent a YTX5L-BS instead. Since there was a no return policy, I decided, for shits and giggles, to see if a smaller amp battery would work. It did, and I rode the bike that way with the YTX5L-BS for a few weeks until deciding I should probably get the proper battery for it. I reordered the correct one, and had a buddy install it for me while I was at work. When I came home to turn on the bike, it wouldn’t turn on once the key was in the ignition. Nothin. I took the bike apart, and low and behold, he had put the battery in backwards. I switched it around, and it still wouldn’t turn on. I checked all of my fuses and electrical connections, but everything seemed fine. The screw/nuts are tight on the terminals, and no dirt or debris is shorting it out. I also put both WEIZE batteries on a trickle charge, and both were fully charged. Any help? Suggestions? I’m dying to ride again.