Flooded lead-acid batteries must be kept in an upright position at all times as electrolyte may spill if tilted more than 20 degrees.
Rolls VRLA AGM batteries should be installed upright for best performance and may not be mounted upside down or horizontally on the end (shortest side) of the case. Models installed horizontally should not rest on the cover or case/cover seam and must be supported fully on the long side of the case.
Rolls OPzV GEL models must be installed upright unless otherwise specified. Special order models compatible with horizontal installation, as well as racking systems, are available upon request. Models installed horizontally may not be mounted on the end (shortest side), should not rest on the cover or case/cover seam, and must be supported fully on the long side of the case. Use caution not to cover or apply pressure to valves located on the top of the batteries when using strapping to install or secure cells as damage may occur.