Pond Boss Forums MANAGING AN EXISTING POND Feeding Feeder Battery Malaise

TJ the other thing you could do is use a 9ah sla/agm battery vs the 7ah that TH sells - they are the same case dimensions. Do you leave the batteries in the feeder throughout the warm season? I would be pulling them out and putting them on a good 3 amp auto charger like a noco genius even when the solar charger keeps them fully charged. AGM batteries need a good "hard" charge every now and then if they are constantly being drained and trickled back to full.

I would wager that a lithium would work fine with a the solar charger to maintain but you would likely need the follow the same process of removing the battery every few days for an indoor full charge. It sounds like the TH solar chaarger has a top end cutoff to prevent over charging. If you use an amped outdoors 12ah (same size as your current TH 7ah) it will have a fully charged voltage near 13.2 just like a sla/agm. You could call amped for verification - they might say it will work in the feeder but not with the solar charger just to cover any liabilities.