<html><head></head><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:16px"><div id="yui_3_16_0_ym19_1_1558868781939_17995"><span id="yui_3_16_0_ym19_1_1558868781939_18048">This was my understanding also, that AGMs don't vent under use. Charging, yes, but the box could be opened or vented during charging. I wouldn't be using regular wet-cell in this application.</span></div><div id="yui_3_16_0_ym19_1_1558868781939_17995"><span><br></span></div><div id="yui_3_16_0_ym19_1_1558868781939_17995"><span id="yui_3_16_0_ym19_1_1558868781939_18488">Hank, if the enclosure is designed to have limited tolerance to the dimensions of the batteries the air volume would be within reason I think. I suspect .25 cu ft or less.</span></div><div class="qtdSeparateBR" id="yui_3_16_0_ym19_1_1558868781939_16973"><br><br></div><div class="yahoo_quoted" id="yui_3_16_0_ym19_1_1558868781939_16941" style="display: block;"> <div style="font-family: times new roman, new york, times, serif; font-size: 16px;" id="yui_3_16_0_ym19_1_1558868781939_16940"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_ym19_1_1558868781939_16939"> <div dir="ltr" id="yui_3_16_0_ym19_1_1558868781939_16938"> <font size="2" face="Arial" id="yui_3_16_0_ym19_1_1558868781939_16942"> <hr size="1"> <b><span style="font-weight:bold;">From:</span></b> Brian Cox via Personal_Submersibles <personal_submersibles@psubs.org><br> <b><span style="font-weight: bold;">To:</span></b> Personal Submersibles General Discussion <personal_submersibles@psubs.org> <br> <b><span style="font-weight: bold;">Sent:</span></b> Saturday, May 25, 2019 10:18 PM<br> <b><span style="font-weight: bold;">Subject:</span></b> Re: [PSUBS-MAILIST] Air comp battery compartment<br> </font> </div> <div class="y_msg_container" id="yui_3_16_0_ym19_1_1558868781939_16943"><br><div id="yiv0221322001"><div id="yui_3_16_0_ym19_1_1558868781939_16947"><div style="font-family:Arial, sans-serif;font-size:10pt;" id="yui_3_16_0_ym19_1_1558868781939_16946"><font size="2" style="" id="yui_3_16_0_ym19_1_1558868781939_16945"><font face="Arial, sans-serif" id="yui_3_16_0_ym19_1_1558868781939_16944">If you could use AGM batteries there would not be the explosion issue.</font></font><div id="yui_3_16_0_ym19_1_1558868781939_16948"><font face="Arial, sans-serif" size="2"><br clear="none"></font></div><div id="yui_3_16_0_ym19_1_1558868781939_16949"><font face="Arial, sans-serif" size="2">Brian</font></div><div id="yui_3_16_0_ym19_1_1558868781939_16950"><font face="Arial, sans-serif" size="2"><br clear="none"></font></div><div id="yui_3_16_0_ym19_1_1558868781939_16951"><font face="Arial, sans-serif" size="2"><br clear="none"></font></div></div></div></div><br></div> </div> </div> </div></div></body></html>