I checked out the info video on the Iota and they can be attached in series or parallel. And the ‘smart module’ does make it a 4 stage charger and is only $20.
Worth trying out. Of course I found a few other goodies I ‘needed’ on the Goldmine site.... -Steve > On Feb 12, 2021, at 7:37 PM, Lee Hart via EV <[email protected]> wrote: > > Mr. Sharkey via EV wrote: >>> I'm thinking 3 of these on my ElecTrak 36v pack >> While it's not a strict apples-to-apples comparison, I use a 45 amp Todd >> "Power Source" switching power supply as the on-board charger on my E20 ET. >> The three 15 amp internal modules were changed from parallel to series >> connection. No problems after fifteen years of operation. > > Todd was an earlier version. I think Iota was formed from ex-Todd employees, > if I remember correctly. > >> Note that a 13.6 volt output per power supply will only result in a nominal >> output voltage of 40.8, which isn't ultimately going to be healthy for the >> batteries (depending on your cell chemistry). > > The Iota has a telephone jack with a jumper wire plugged into it. The jumper > sets the output to 13.6v (and there's a trimpot inside, if you want to tweak > it). > > If you unplug that jumper, the voltage goes up to 14.7v. That would more > fully charge a lead-acid battery. But it is too high to leave it on this > voltage indefinitely. The Iota definitely does not shut off by itself! > > Iota made a "Smart" module that plugged into this jack. Basically, it opened > the jumper to charge to 14.7v. After about an hour at 14.7v, it shorted the > jumper again to drop to the safe 13.6v "float" voltage. > > Lee Hart > > -- > In the mood for a great New Year's story? Here is my > abridged version of Charles Dickens classic "The Chimes" > <http://www.sunrise-ev.com/poems/thechimes.htm> > -- > Lee Hart, 814 8th Ave N, Sartell MN 56377, www.sunrise-ev.com > > -- > This email has been checked for viruses by Avast antivirus software. > https://www.avast.com/antivirus > > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > ARCHIVE: http://www.evdl.org/archive/ > LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub ARCHIVE: http://www.evdl.org/archive/ LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org
