Forum Discussion

RJsfishin's avatar
RJsfishin
Explorer
Oct 23, 2015

PD Converters and Water Usage

For Dry Campers Only

No secret I've been a fan of PD converters for 15 yrs or more, and for more than one reason. The PD maintains my batteries every day of the year, except for the 4-5 months that I am actually using them, during which time they are now charged mostly by solar down south, and some generator time on the Oregon coast on many short sun days.
For a long time I have said to check water twice a year, just to stay out of trouble w/ those who maybe use more water than I do, but in my reality, I never remembered watering more than once a year, if that.
Yesterday, changed oil, filter, lubed, and got to the batteries, and thought,....I really don't need to check them, as I think I checked them in March when I got back from AZ,...but then thought, don't be stupid, and then maybe sorry, so I checked them, and again, if the water was down an 1/8", I honest to god couldn't see it.
So in my reality, and my useage, and the PD maintaining them, I can honestly say, my batteries don't need watering once a year.
But of course, I will always check them once a year.
My question,....and the purpose of this post, is,.......
how many others maintaining w/ PDs have the same experience of "water once a year"?? Or others reply too. I'm wondering if it is a PD thing, or are others having the same experience. I consider myself to be an average battery user.

53 Replies

  • I'm about the same now that I have solar. Last year I relied more on my Quick Charger and 15 volt charges to keep my generator run time down but the water use was higher. I have a PD 4650 and 4 six volts from Sams. I was told back then that doing 15.xx charges would kill the batteries is 6 months. I'm at 19 months and they still perform well. PD and Sams cheap deep cycles are an excellent value.

    12.7 yesterday evening, now 12.3 after a good amount of furnace time overnight, down 57 AH.
    Wife even knows what the difference is in the green light flashes.

About Technical Issues

Having RV issues? Connect with others who have been in your shoes.24,369 PostsLatest Activity: Mar 15, 2026