<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"></head><body ><div>Great info Alan. Do you know if those batteries are soild or do they contain air? I am wanting to do compensated batteries for my new submarine to keep the weight down.</div><div>Thanks,</div><div>Scott Waters</div><div><br></div><div><br></div><div><div style="font-size:9px;color:#575757">Sent from my U.S. Cellular® Smartphone</div></div><div></div><br><br>-------- Original message --------<br>From: Alan James via Personal_Submersibles <personal_submersibles@psubs.org> <br>Date:02/02/2015 12:50 AM (GMT-06:00) <br>To: Personal Submersibles General Discussion <personal_submersibles@psubs.org> <br>Cc: <br>Subject: Re: [PSUBS-MAILIST] Lithium batteries <br><br><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div dir="ltr" id="yui_3_16_0_1_1422858306309_3088"><span>Scott,</span></div><div dir="ltr" id="yui_3_16_0_1_1422858306309_2999"><span id="yui_3_16_0_1_1422858306309_3087">the DW2000s are using lithium iron batteries manufactured by this</span></div><div dir="ltr" id="yui_3_16_0_1_1422858306309_3029"><span id="yui_3_16_0_1_1422858306309_3173">North America company...</span></div><div dir="ltr" id="yui_3_16_0_1_1422858306309_3003"><span id="yui_3_16_0_1_1422858306309_3011"><a href="http://beckettenergy.com/advanced-maritime-battery-systems/" id="yui_3_16_0_1_1422858306309_3010">http://beckettenergy.com/advanced-maritime-battery-systems/</a><br></span></div><div dir="ltr" id="yui_3_16_0_1_1422858306309_3003">At the bottom of the page is a link to their dealings with Nuytco.</div><div dir="ltr" id="yui_3_16_0_1_1422858306309_3003">The DW2000 batteries are in sealed pods as per usual.</div><div dir="ltr" id="yui_3_16_0_1_1422858306309_3003">There is a new battery technology that the electric car market is excited about;</div><div dir="ltr" id="yui_3_16_0_1_1422858306309_3003">lithium sulphur. They have already proven to be 5 x more energy dense than</div><div dir="ltr" id="yui_3_16_0_1_1422858306309_3003">lithium polymer batteries. They are also expected to be cheaper than lead acid</div><div dir="ltr" id="yui_3_16_0_1_1422858306309_3003">per kilowatt of energy. I am hoping they will be available in a couple of years</div><div dir="ltr" id="yui_3_16_0_1_1422858306309_3003">when I finish my next sub. So I am designing to have battery pods that will</div><div dir="ltr" id="yui_3_16_0_1_1422858306309_3003">be fitted with lead acid batteries, but are hoping I can put lithiuym sulphur</div><div dir="ltr" id="yui_3_16_0_1_1422858306309_3003">in them. What I am trying to do is avoid spending a huge amount on a lithium</div><div dir="ltr" id="yui_3_16_0_1_1422858306309_3003">battery that will soon be superceded by the lithium sulphur or lithium air.</div><div dir="ltr" id="yui_3_16_0_1_1422858306309_3003">Alan</div><div dir="ltr" id="yui_3_16_0_1_1422858306309_3003"> </div><div id="yui_3_16_0_1_1422858306309_3003"> </div><br> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_1_1422858306309_2998"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_1_1422858306309_2997"> <div dir="ltr" id="yui_3_16_0_1_1422858306309_2996"> <hr size="1" id="yui_3_16_0_1_1422858306309_3004"> <font size="2" face="Arial" id="yui_3_16_0_1_1422858306309_3005"> <b><span style="font-weight:bold;">From:</span></b> "swaters@waters-ks.com via Personal_Submersibles" <personal_submersibles@psubs.org><br> <b><span style="font-weight: bold;">To:</span></b> psubs <personal_submersibles@psubs.org> <br> <b><span style="font-weight: bold;">Sent:</span></b> Monday, February 2, 2015 3:18 PM<br> <b><span style="font-weight: bold;">Subject:</span></b> [PSUBS-MAILIST] Lithium batteries<br> </font> </div> <div class="y_msg_container" id="yui_3_16_0_1_1422858306309_3229"><br><div id="yiv7680876952"><div id="yui_3_16_0_1_1422858306309_3231"><div id="yui_3_16_0_1_1422858306309_3230">I am working on my new sub design and am trying to do everything possable to keep the weight down. One of my thoughts is to not use AGM batteries and use lithium. A few questions about lithium batteries. Does anyone have a source for them? Also are they completely filled so you could compensate them? Maybe use the enclosure like Deep Sea Power and Light?</div><div>Thanks,</div><div>Scott Waters</div><div><br></div><div><br></div><div><div style="font-size:9px;color:#575757;">Sent from my U.S. Cellular® Smartphone</div></div><div></div></div></div><br>_______________________________________________<br>Personal_Submersibles mailing list<br><a ymailto="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br><br><br></div> </div> </div> </div></body></html>