This recommended practice provides recommended design practices and procedures for storage, location, mounting, ventilation, instrumentation, preassembly, assembly, and charging of vented lead-acid batteries. Required safety practices are also included. . These hazards may include shock, energy, and/or burns use a voltmeter to verify that no voltage or the expected voltage is pre nt. Check for volta with both AC and DC voltmeters prior to making co insula d tools appropriately rated fo age is not hazardously high, the battery can deliver large. . This regulatory guide (RG) describes an approach that is acceptable to the staff of the U. Printed in the United States of America. I E E E i s a re g i s tere d tra d e m a rk i n th e U.