The battery has built-in protection for cold weather.

@@DavidPozEnergy ok, nice function to have. Not all lithium battery's BMS has cold temp protection. Most have high temp, short,over charge/discharge but not cold temp. Without that protection you might have to install some type of heating element around the battery, or some type of shut off. Both would need to operate off of a thermostat

Also why all the DC breakers on the PDP and so few Ac? Any small cottage I guess will be adding subpanels for house wiring.

Sure, my friend, Chris, did that with his system. He is using a Midnite-Solar brand DC circuit breaker box. Here is a video with his property: kzfaq.info/get/bejne/mqp3irx4vbaXhGw.htmlsi=vido8inacRirnvHU

@@DavidPozEnergy Thanks so much! He used the Schneider MPPT. I'm seeing the value as I watch your Schneider playlist.

I agree. There are some on the market, made for yachts. Far too expensive for me.

@DavidPozEnergy I've seen guys hook a motor up to an alternator but they aren't meant to charge a fully discharged battery either and the motor isn't quiet. Maybe if you got a tractor trailer alternator it would work better. This would help those Living off grid

Sure. I've done that very thing: kzfaq.info/get/bejne/ebJoipiZztbFfIE.htmlsi=849FU4J4uM_dHjyW

I'm not sure what you mean.

@@DavidPozEnergy Sorry it's my bad, I tough it was a kind of subscription that was needed to connect the BMU "to some higher level computer" on the web. 3:37 "so the way this type of assembly works it does not have a true BMS or battery management system instead it has this which is a bmu or battery management unit it's collecting data and then sends that data up to some higher level computer which would have been one Central higher level computer" Some car need a subscription to use heating seat or the sound system already installed in the car, it's a new type of scam. Sorry '-)

OK, gotcha. This module would have originally been built to be part of some large system. For example, I've seen shipping containers with hundreds of these modules. The shipping container might have one central computer collecting data on all the individual modules. The system as a whole is a BMS, but the individual circuit board is the BMU. I replaced that with a stand-alone BMS.

Yes. Each inverter has a built-in 60A (240V) relay to allow the grid to pass-though. Using this as a UPS is very common.

Thanks. In Video part 3 I fine-tuned the fuel economy with testing various loads and RPM's.

No, the Mr. Cool stopped working and the company stopped responding to my e-mails.

Thanks was considering trying one but might try something else

I'm sorry, I might not understand. If you are asking about using a 48V alternator, yes, that would be easier than using a 12V like I did.

@@DavidPozEnergy Does the inverter have to be as big as the battery, i.e. do I need 3x 12kw inverters or does it just have to be as big as the power I need?

Just big enough for your power needs: Size your inverter to handle the loads. Then the minimum size of the battery is what can supply the current needed for the inverter. You can always make the battery bigger.

It's a great point. Having separate CC and inverters gives you more flexibility. Personally, I set my low Voltage cutoff fairly high (48V) and never had an issue. I ran my house Growatts for over a year. However, now I'm running on Schneider equipment.

@@DavidPozEnergy I really enjoy watching your videos, especially when you opened the Growatt to show the inside layout and components which I am mostly interested in. I am an Electronics repair/service technician and like to see the electronics side of inverters to judge their quality. I look mainly for toroidal transformers, high quality FETs and Capacitors. Also if the circuit boards are coated with acrylic conformal coating to prevent moisture damage. Thanks for your reply. 👍

No, the engine needs fuel.

Check out video part 2, I ran several thermal tests.

I didn't know the specifications of the original diodes, also, I wasn't sure about the bridge between the high-Voltage and low-Voltage sides being a problem or not. In video part 2, I dedicated a few minutes to discussing using the original rectifier. I figured the method I used (separate rectifier) was a safer option with so many unknowns.

@@DavidPozEnergy makes sense

Your are correct that an alternator is not the most efficient thing out there. I did this because alternators are easy to get used and cheap, and I always wanted to try one. I suppose if I had a big enough stepper motor on hand, then I'd try that. Note, this particular alternator is a bit better than average at about 70% eff.

@@DavidPozEnergy 70% for an alternator is not shabby. Thanks for your explanation.

Each inverter has one MPPT charge controller built in. I have 3 solar arrays in my backyard (videos on how I built them are on my channel). Two solar arrays feed the inverters, and the third array goes to the Victron CC.

The battery held up well, but the BMS wasn't up to the task. The BMS is the battery management system inside the case. It BMS in this battery was limiting the current to the motor too much. We swapped it out for a battery about the same size (Ah) but with a larger BMS. Check the video out here: kzfaq.info/get/bejne/gNRxZ7Vi3dunmIk.htmlsi=WWLVq5KBoaGev7PS

@@DavidPozEnergy Okay thanks. I just ordered the egf 48v from signature so hopefully it’s the newer version. I see It is rated at max 200ah output and states the BMS is rated at 200a.

@@ajsfree Cool, were you able to use my link when you ordered it?

@@DavidPozEnergy yes on the battery but the charger did not pop up. I should have it installed within the week. Thanks again!

Thank you, I appreciate this.

I think so, but I can't say 100% because I used a laptop. First, Schneider knows that a lot of customers don't have internet, so this is how you get around it. 1. Find internet somewhere (coffee shop, library, etc.) 2. Download the firmware file to your device. (laptop, tablet, etc) 3. Go to the insight home location. 4. connect to the insight home's wifi signal 5. Open the insight home using an internet browsing software (ie. Crome) 6. Follow the rest of the steps in the video to find the firmware file on your device.

@DavidPozEnergy I did get it working but will picking a laptop ASAP.

@DavidPozEnergy thanks for responding. Maybe I could put together a list of question's and you could do a video about solving these infantile issues as they arise. There are so many settings... I'm not used to this level of functionality. All my other systems where plug and play. But I can't argue with its performance! It's outstanding charging my Tesla and running my farm with one inverter! I do still wish they would sell a hard wired control panel though...

I agree with you. Check out video part 2 and 3. In part 2, I welded a steel base for both the engine and alternator, which took care of vibrations. I also did some thermal imaging tests. In part 3, I fine-tuned fuel efficiency.

Thanks for watching. How did commissioning go?

@@DavidPozEnergy Got it done! I had your video going and I was doing mine at the same time you did yours on your video!!! So happy and thrilled this part is over. I am like you- I am not good with computers, so thank you for showing this literally step-by-step. So easy, even I can do it.

The newest version of the battery does have fire suppression built in. The newest version is here: signaturesolar.com/eg4-ll-s-48v-100ah-server-rack-battery/?ref=4_rHcgZ9x-TiF- Please use discount code DAVIDPOZ50OFF at checkout.