A main point to the choir is that each manufacturer has their own recommendations. The US battery I often use has monthly EQ. Looking at 30 years of batteries here and the Offgrid manufactures seem to change what they like over time. Sometimes it is so complicated that I can't expect my client to succeed. I dumb it down, just the basics, and they still get 10 years or more on a set of L16's.
I think it is because battery companies are in the business of selling batteries. I appreciate that also! This is not rocket science though, If I had them do all of the things on that list, well, they would not listen to me on the basics. Dave Angelini Offgrid Solar "we go where powerlines don't" http://members.sti.net/offgridsolar/ e-mail [email protected] text 209 813 0060 On Tue, 9 Feb 2021 14:29:12 -0500, Ray wrote: > Dave makes a good point; I also don't recommend opening the cells while > they are charging at a high rate. I like to get SG readings with the > electrolyte being mixed by bubbling, but I turn off the charging > sources, and let it settle down for a few minutes, before opening caps. > > And I second Steve's comments: over charging and over filling the cells > can both lead to more problems than EQing might solve. > > Ray Walters > Remote Solar > 303 505-8760 > > On 2/9/21 10:35 AM, Dave Angelini Offgrid Solar wrote: >> That does not sound best to me. I get the point but there are much >> better >> ways. Not good for you to be close around a bank in EQ. If you are >> checking >> water level every month the level should not be really low. You do this >> in >> case you miss a cell a month back! You should be counting as the water >> goes >> in to see if you have put about the same amount in. I have never noticed >> any advantage to mixing the cells after watering. They will get mixed the >> next day. If this concerned you, you could run a 30 minute absorb after >> watering. >> >> I like to EQ before watering so my customer does not over fill and start >> the corrosion process. Just open all of the cells and look before they >> EQ. >> >> I also like to mark 2 of the lower SG cells and 2 of the good ones. This >> makes it easier for my clients to check the bank. Once every summer or 2 >> they need to look at all of the cells. Summer is best because it is the >> time when you can do long corrective EQ's if you find trouble. >> >> >> Dave Angelini Offgrid Solar >> "we go where powerlines don't" >> http://members.sti.net/offgridsolar/ >> e-mail [email protected] >> text 209 813 0060 >> >> On Tue, 9 Feb 2021 05:36:39 -0800, Mark Frye >> wrote: >>> My Rolls manual says: >>> >>> "It is recommended to water the battery cells half way through the >>> equalization. This is to >>> assure the water is completely mixed into the electrolyte." >>> >>> _______________________________________________ >>> List sponsored by Redwood Alliance >>> >>> 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 >> _______________________________________________ >> List sponsored by Redwood Alliance >> >> 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 >> > _______________________________________________ > List sponsored by Redwood Alliance > > 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
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