Automatic Battery Watering

One of the critical chores in maintaining your off grid battery system is making sure the water levels are kept up. This prevents the plates from being exposed, and ruining a pack before it’s time. Some folks have physical difficulties, or plain forget to water, so we are introducing an automatic watering system that will add a bit of water everytime the batteries hit 100% state of charge. A 5 gallon resorvoir means that it will be months before you have to refill the tank, and no spills means no corrosion. All gases are collected and vented to the outdoors through a tube, so no indoor venting issues. The system is controlled by the relay contacts on the Outback FLEXnet DC, but a Xantrex system could be used as well. A 24 cell system (8 batteries x 3 cells per battery) will sell for about $500, and requires programmable relay contacts (Outback FLEXnet DC or equivalent).