<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto">I am not a battery expert but what I found best for me is to plug in the charger every week or so during the times between dives.<br><br><div id="AppleMailSignature">Sent from my iPhone</div><div><br>On Mar 28, 2018, at 6:53 PM, Brian Cox via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br><br></div><blockquote type="cite"><div><div style="font-family:Arial, sans-serif; font-size:10pt;"><div>Cliff, Once your batteries are all charged up do you leave the charger on all the time in maintenance mode? I've been working on my sub for a couple of months since my last test and have not charged the batteries up for that time period. I noticed when I turned the charger back on that it went into the "topping off " mode or "finishing" where is was 90% charged. do you think it's a good idea to just leave the charger on all the time in maintenance mode?</div><div> </div><div>Brian</div><div> </div><div> <br><br>--- <a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a> wrote:<br><br>From: Cliff Redus via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>To: Personal Submersibles General Discussion <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>Subject: Re: [PSUBS-MAILIST] 36vdc charger<br>Date: Wed, 28 Mar 2018 16:43:23 -0500<br><br></div><div dir="ltr"><div>I use a Zivan NG3 Onboard battery charger. I have a 36VDC battery bank made up of 9 batteries organized with three sets 12 vDC batteries in series for 36V and each of the sets in parallel. </div><div><br></div><div>See code F7 CR. for model number for 36V bank. Charge rate is 60 amps. The time to recharge depends on SOC. After typical dive day, I let it charge overnight. This charger is good for psubs in that it understands our boats stay in the shop a lot and only need trickle charge for long periods of time to keep from killing batteries. </div><div><br></div><div>I have this charger installed permanently in the boat. Has a remote sensor that lets you see how the charge is coming along. </div><div><br></div><div>Cliff</div><div><br></div><div><br></div></div><div><br><div>On Wed, Mar 28, 2018 at 2:38 PM, Jon Wallace via Personal_Submersibles <span dir="ltr"><<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>></span> wrote:<br><blockquote style="margin: 0px 0px 0px 0.8ex; padding-left: 1ex; border-left-color: rgb(204, 204, 204); border-left-width: 1px; border-left-style: solid;"><div><div style="color: rgb(0, 0, 0); font-family: times new roman,new york,times,serif; font-size: 16px; background-color: rgb(255, 255, 255);"><div><br></div><div>For those with 36v systems, what charger are you using? How many amps? How long to charge the bank of batteries?</div><div><br></div><div><br></div></div></div><br>_______________________________________________<br>
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