Originally Posted by okie143
Schumacher 1 Amp Manual Trickle with Quick
Disconnect/Charger from walmart.
7 ozs in each cell, ER battery. There are 3 cells on these interstate batteries so that is 21 ozs ER battery.
I think your manual charger is the problem....causing excessive off gassing and loss of water. Either get a "smart" 3 or 4 stage battery maintainer/charger such as a "battery tender" or once the batteries are charged, disconnect them and just let them sit for a month or two...then just give them a "refresher charge" with your manual trickle charger for 8 hours or so - then disconnect again till next month. Repeat this process as often as they are stored.
The "smart" chargers know when to reduce the amp output to almost zero when the batteries can't take anymore, and prevent needless "boiling" of the electrolyte.