Quote:
Originally Posted by GeeTwo
While storing and using batteries horizontally is not a problem AFAIK, batteries should be charged in an upright orientation to allow gasses to vent.
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While I agree that it is better to charge batteries upright, it is not an actual requirement. Case in point one the the SLA batteries in my office UPC is mounted upside down. The FRC style batteries should not vent in normal operation or charging using a FRC legal charger. It your SLA batteries are venting during charging, you should replace your battery or charger.