This is lithium, the lvd is integrated to the pack. I'm going to attempt to use a 360w meanwell charger on a lithium charge profile paralleled with the battery and the load, I wasn't sure if the load would stay offline until the batteries get to the loads minimum voltage to run or what the behavior would be because I won't be limiting charge current to dedicate load current like a 'real' system would have. Trying to build a system on a budget for a friend, this whole system will cost less than a 48v DC ups or 48v rectifier with ups function.
On Tue, Sep 7, 2021, 3:44 PM Chuck McCown via AF <[email protected]> wrote: > Most rectifiers for “float “ service have current limiting. And yes the > batteries will present a heavy load and it will take some time for the > voltage to come up. If the lvd reconnects the batts the voltage could drop > so much they will disconnect again and flop for a while. You need a > rectifier that can pull the live load plus a heavy charging current. I > would go twice my load or more for this reason. BTW not a fan of lvd. Do > you really want to totally kill your customers in the unlikely event the > bats go that low? I quit using them 20 years ago and have never regretted > that decision. > > Sent from my iPhone > > > On Sep 7, 2021, at 4:29 PM, TJ Trout <[email protected]> wrote: > > > > > > What happens when you parallel your supply, load and batteries without > using a 'dc ups' which provides lvd + charge current limit? > > > > I'm using batteries with a Integrated lvd so I am just concerned with > the behavior after a long outage where the load and battery will be > fighting for the supply current? > > > > Can't find any low cost options @ 48v to limit charge current (DC ups) > Maybe I can use a diode one way and a current limiting device the other way > to the battery? > > -- > > AF mailing list > > [email protected] > > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com >
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