I believe most brands can be used in any position. I believe Panasonic and PowerSonic brands can be used in any position. However I think there were some manufacturers with limitations on position so I recommend you check the manufacturers data sheet for the particular model you have. Paul > Anyone know if it is allowable to operate an SLA battery > tilted over on its side? What about upside-down? > -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body