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as expected, the kilovault hlx's shut off after reaching full charge off the charger/inverter. once ac power is lost, they do not come back on. the only way to turn them on is push the button on each battery. used my multiplus on another system and pulled an old growatt 3k out for this. same...

Okay.... But how many Wh per slice of toast is it?

Yes. Interior Alaska. was searching for how people deal with it but maybe its not that common. I take a big hit unless I clean it off with deicer but it keeps coming back. The good news is it eventually sublimates away into the dry air, but that takes a long time. When I had a small array I...

Repurposed my kilovaults for a on grid ups/backup for home heating system. Doing wiring, sitting here and just realized that with no current on them, they are going to shut off and will not be available when the lights go out and the victron multiplus ii tries to pick up the load. Any thoughts...

yes, I have wires and a few of the ones on the bottom of the pack were unbonded. I spot welded a tab on and soldered to it. I was unable to solder the wire directly to the alu plate. I think they use an ultrasonic welder in the factory. have you had to rebond wires? how did you do it if so...

After letting them sit several hours in balance mode, it does not look like they are doing anything (presumably this is very slow and would take a long time to see any progress). Im pulling those modules from my pack and will manually balance them in my shop before adding them back in.

My pricing chart from this spring put my 2s3p pack, with bms (900usd) at about 125usd/kwh. I did not price diy LFP packs because im not interested in building one. the "AK price hlx+" is what I paid locally for my previous 4s pack after hazmat shipping to Alaska. I ended up driving my tesla...

Here's some interesting victron threads on mppts causing emi on radio equipment. Though in the first one the question of what is the switching frequency of their controllers is never answered...

Yes, like all lithium batteries the charge rate drops very sharply in cold. Lifep04 is even more severely cold affected.

Will still work fine without victron gear. Some people run them on solark even, at reduced "capacity" and the partial cycle depth will greatly extend the life of the pack. For what they cost, you can just parallel a few more. Grab the consultation call on veroelectric.com and I think they...

!!! Its not a boost converter. The PV input side needs to be at least 5v over the battery voltage. Step down only. In my case I'm going from 48v to 12. Other combinations would be 48, 36 to 24, 12 24 to 12 Basically, where 12v cell groups = n, you need n+1 on the PV input with n on the...

One thing I forgot to mention is I have a wood stove and a small Honda 2000iu I keep so I can do black start no mater what the temperature is. Cold black start procedure (have done once at -25f) 1. Make fire, start warming up cabin. Put snow on stove so you'll have water for tea later. 2. Get...

Its basically space bar heating the BMS. ? https://xkcd.com/1172/

A couple months now. Has been working great. Always shows full charge and battery seems happy. Have not looked at the equalization history but I assume its working. Had a time or two when my main (HV) pack disconnected due to cold temp (heater ran out of fuel) and everything for the 12v system...

No, not running a generator to power resistive heating loads. Heat pump maybe. the btu loss running a generator instead of burning the heat directly in a dryer is more than i can bear.

DAB esybox 3 VFD pump like the Scala 2 but has more settings and features for the same price. Flow rate and usage monitoring.

Looking for recommendations for a charger 120VAC to DC For 6s Li Ion (tesla modules in parallel with external BMS+balance) Adjustable voltage between 24 and 25v Something in the 50 to 100a range The victron AC chargers do not go low enough in the app settings. Almost ran into trouble with this...

I built an automatic heater controller with adjustable hysteresis for the diesel heater in my battery shed. In march I put a 15 gal poly drum with an emersion heater + temp controller. The heater never ran after that, its about a 3.5 kWh thermal store depending on the temp end point. I was...

Some mentioned an hrv. Most of these are large units but Lunos has a small hrv that uses bidirectional fans in a single tube with a ceramic core heat exchanger. It is not likely to be rv rated but if you installed it in a box with an external vent it would probably work fine. It needs a slight...

Is anyone familiar with the battery modules BMSs from a Tesla model S? these are 5.3kwh modules running on SimpBMS. REV A module board, says "PCBA, BMB, WIRE-CLIP" When simpBMS put the pack in balance mode, the lowest two cells of one module begin to jump up and down. (cells 10 and 11 on the...

I have a 100 Gallon vertical propane tank. I am unfamiliar with the valves on these larger tanks but have seen videos of people refilling their 20lb tanks from them. I'm hoping one of these valves connects to the liquid withdrawal tube but not sure if this tank has that. It does not look to be...

Im running simpbms (which was just superseded by the verobms v2). Its a contactor based BMS that uses the OEM Tesla satellite boards for temp + voltage sensing and cell balancing. The simpbms (and verobms) talk with victron battery can bus and can regulate charge rate. It has over/under temp...

Tiny homes are cool. Mobile homes are not. Why is this?

That was a bit of a joke because a toaster is a linear load. The point of this idea is to pool data on the average power of non linear or cyclical loads. but I did include a toaster (16.5wh per slice). :) Again, Max power is good for sizing inverters. Average power is better for sizing...

I agree, I have mixed dc and ac in my cabin. My toyotomi heater is ac only but lights are lvdc. In the summer I can switch off my ac most of the time. For cooking or heavier loads just switch it back on.

After a bit more digging, these vertical tanks are commonly called 120 gal or 100 gal. The first volume is the water/tank displacement valvue. The second is the LPG storage volume. I cannot find a spec sheet but they do not appear to have a Liquid withdrawal tube. They are DOT rated to be on...