Cindy, you COULD have one or more blown fuses in the converter battery charge circuit. I had this happen in mine and the converter stopped charging the battery. Here's my thread on the problem and the repair: https://www.hilotrailerforum.com/f28...g-repair-6454/
But, you can check your battery charge state with a multimeter, which you can buy for around $30 I think at home improvement stores like Home Depot or Lowes. If the battery is not operating anything and it is fully charged and new, you should see 12.7V at the battery terminals.
If you used the battery to raise the top or if it's been operating something in the trailer and is not being charged, then it might show "fair" on the gauge in the trailer. You really need a multimeter to see the actual charge though. As I recall, a reading of 12.4V is about 75% charged and 12.2V is 50%. But all these readings are with NOTHING being powered by the battery!