Re: Distilled Water Consumption
I set up my trawler
for unsupported cruising several years ago which included an inverter
(before inverters were cool :-) ) and a house bank of 12 x Trojan T105's in series parallel to provide 1320 amp-hrs @ 12VDC. We lived on the hook for a very large portion of a three year cruise
"Down Island". My trawler
has a household reefer that made up the largest portion of my DC load which was about 500 amp-hrs per day.
As we started to use this system on a shakedown cruise
to the Bahamas
, I realized that checking the battery water every x days, y weeks or z months was not the best way to manage my battery bank. If I waited too long, it would take me a significant amount of time to properly water my 36 cells.
I decided that I wanted to be in and out of the battery watering and maintenance
business in about 1/2 hour and use no more than two battery watering bottles full of water. I also decided to base my battery maintenance
schedule on amp-hr consumption
(and replenishment). Thru trial and error, I found that maintaining (watering, neutralizing the battery tops, checking connections and drying) these batteries every 10,000 amp-hrs met my criteria. This worked out to about every 18 days.
With this experience, I would say that maintaining your FLA batteries based on a calender is not optimum and that, with a little logging and arithmetic, a much more efficient water consumption determination can be made.
For what it's worth.