When you're a solo RVing woman, you can have a "honey-do" list ("Honey? Do this.) However, there is no "honey" to do anything for you. You need to take responsibility for your own maintenance and upgrades.
Recently, my batteries started losing their charging power. I was running the generator for a half hour to charge the batteries and they only held a charge for an hour. I checked the batteries for an installation date and couldn't find one. Either they were too old to charge or there was a problem with the generator.
While I was charging the batteries yet again, the generator suddenly became very loud. Muffler, I thought. Great.
I made an appointment at the shop and bought two new 6-volt batteries. Running in tandem, two 6-volts have more power than two 12-volts. I don't understand why. Each 12-volt puts out 100 watts. Each 6-volt puts out 180 watts.
After installing the batteries, I asked the man if he could find the dates on them. We looked at one and found 2004. We never did find a date on the other. I assume it was older and just tired. He asked when they were replaced and I told him I didn't know.
Then he looked at the generator. No problem assessing what happened: there was a golf ball-size hole near the connection and the muffler was hanging down on one side.
The other mounting bracket held it to the frame. The man asked me when it had been serviced. I told him I didn't know.
One of my pet peeves is not knowing something I should know. I had to assume someone replaced a battery in 2004 but had no idea when the other was installed. I also had to assume no one had ever performed any generator maintenance like changing the oil or giving it a tune-up. The generator is an Onan with 589 hours on it. I have been assured by the performance specialist that Onans can run well into the thousands of hours if maintained.
Since I can't hand off that honey-do list to anyone else, it becomes my responsibility to check on needed maintenance. I created a list and flagged my Outlook calendar to let me know when I should schedule service.
By the way, my batteries were installed on November 17, 2007 and I know exactly how old they are now. My generator will be serviced on December 3 (new muffler, oil change, etc.), and I'll be sure to add its maintenance schedule to my calendar. My water filter will be changed on New Year's Eve (do I know how to celebrate or what?).
Suggestion: you might want to check your own RV to update the maintenance records. It won't take long and the next time you need service, you'll know.