100,000s of units sold to the diy community you are going to see some failures... wonder how many are self induced
On Tue, May 7, 2024 at 12:07 PM Robert <i...@avantwireless.com> wrote: > I have 60KW of EG4s and am seeing more and more posts of failing BMSs on > them. They are showing up on the LFP auction sites for $500 with failed > BMSs in higher and higher numbers. Making me nervous of my rack > reliability.. > > On 5/7/24 11:36 AM, TJ Trout wrote: > > they would work fine at that voltage, but not 100% charged which is a good > thing. Regular power supplies cannot divert current like a DRS-480 for > example, so if your system goes to 0% and dies, when AC power is restored > the power supplies will need to charge the batteries and power your load at > the same time, if the minimum voltage of your equipment isn't met then you > might still be offline for some time while the batteries charge up to the > minimum equipment voltage... lifepo4 batteries are a great investment IMO > and cheaper than lead if you look at the whole picture but I would avoid > cheapy amazon batteries that are likely to have crap BMS that will fail. > Stick with EG4 or other known good mfg. > > On Tue, May 7, 2024 at 10:52 AM Robert <i...@avantwireless.com> wrote: > >> While I have used, read about, studied, and debated about LFP batteries, >> one thing I cannot find an answer to: >> >> Is there a problem with using a regular voltage supply set to 13.4 volts >> ( 90% ) charge to maintain a LFP battery for backup power use? Is >> there a need to buy a specialized battery charger like a samlex to >> charge an LFP battery? >> >> Note that I am currently using regular power supplies to maintain a bank >> of LFPs. I just don't know if I am setting up for an issue in the >> future... >> >> Self heating 12v batteries have reached a new low with one just >> becoming available on Amazon for $229 and, with a netonix, that would be >> a pretty simple system. >> >> -- >> AF mailing list >> AF@af.afmug.com >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> > > > -- > Thank you, > > TJ Trout > Volt Broadband > 209.480.3122 Cell > > > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > -- Thank you, TJ Trout Volt Broadband 209.480.3122 Cell
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