OK, I am thinking the most important thing is to ensure that the batteries are fully charged before I put them into storage.
From: RE-wrenches <[email protected]> On Behalf Of James Jarvis via RE-wrenches Sent: Tuesday, December 2, 2025 4:41 AM To: RE-wrenches <[email protected]> Cc: James Jarvis <[email protected]> Subject: Re: [RE-wrenches] AGMs - Maintenance Cycling The life of the batteries will be longer in that service then in a deep cycling service. -James Jefferson Jarvis APRS World, LLC +1-507-454-2727 http://www.aprsworld.com/ On Tue, Dec 2, 2025 at 6:30 AM Mark Frye via RE-wrenches <[email protected]<mailto:[email protected]>> wrote: Thanks Guys, I guess I am wondering if the overall life of the battery will suffer if it is only ever cycled between 0 and 20% DOD and never deep cycled. From: RE-wrenches <[email protected]<mailto:[email protected]>> On Behalf Of Jay via RE-wrenches Sent: Monday, December 1, 2025 3:31 PM To: RE-wrenches <[email protected]<mailto:[email protected]>> Cc: Jay <[email protected]<mailto:[email protected]>> Subject: Re: [RE-wrenches] AGMs - Maintenance Cycling Agreed and especially if the batteries are in a cooler to cold environment even less an issue as the colder temps slows down any self discharge Jay On Dec 1, 2025, at 12:57 PM, James Jarvis via RE-wrenches <[email protected]<mailto:[email protected]>> wrote: Is there a specific problem you are trying to resolve? If the loads are shut off when in storage, I don't see any issue with not messing with any charging what-so-ever for some months of storage. -James Jefferson Jarvis APRS World, LLC +1-507-454-2727 http://www.aprsworld.com/ On Mon, Dec 1, 2025 at 10:47 AM Mark Frye via RE-wrenches <[email protected]<mailto:[email protected]>> wrote: Folks, I have some AGMs that are PV charged during normal use and can be line charged when in storage (IOTA). The batteries will generally see 10-20% daily DOD and will generally complete the absorb cycle and see a fair amount of float each day. They may be deployed in this mode for many months. After that, they will go into storage for several months. Storage will include float charging at the IOTAs regular voltage. I have the LVD set at 46V. Would it make sense to occasionally turn on the load, turn off the line charger, let the bank run down to LVD, turn off the load, turn on the charger with the increased voltage jumper installed, charge overnight, remove jumper and resume normal float charging? Thanks, Mark _______________________________________________ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: [email protected]<mailto:[email protected]> Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/[email protected]/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org _______________________________________________ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: [email protected]<mailto:[email protected]> Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/[email protected]/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org _______________________________________________ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: [email protected]<mailto:[email protected]> Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/[email protected]/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
_______________________________________________ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: [email protected] Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/[email protected]/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
