Most reacted posts

I like the way he describes things. He has a number of videos on his YT channel; this is just one of many where he references the Sun G.T.I.

I just want to throw in my 4 cents here: once you have proper grounding, look into surge protection, too, to make all that compliance actually financially beneficial to you in the probable long run by leveraging your grounding to save money: I have heard good recommendations for surge...

In this article, they explain Panasonic now has (daily cycle permanently installed) home electricity storage products that integrate with solar. https://pv-magazine-usa.com/2019/11/19/old-dog-solar-panel-manufacturer-panasonic-learning-the-new-trick-of-home-energy-storage/ Here's the direct...

Does anyone have the charge curve? I just want to know between 70% and 30%; no need to go 100% to 0%! I wish Will did data dumps of his cell tests. I also bought 32 of the Fortune 100Ah cells. I love them too because they're my first cell pouch LiFePO4 batteries and they seem to be nicely...

I gave a reference to this hour long presentation in my edit. As far as I know, I consider it mandatory for any LiFePO4 BMS maker. The review starts at 1:37:05, and the whole hour long presentation starts at 34:22.

Yes!!!! Um, so, sort of no, then. Someday that could begin to change. That depends on a lot of factors, even today, though. For instance, just because someone has only changed a light bulb doesn't mean they don't already have the intuition and intelligence to know how to do much more, but...

They don't look PT.

That's how I started, and 300 baud was plenty. It had lower latency than 2400bps and many 1200bps modems.

This is my understanding after watching one very educational video which I already linked above and so therefore I'm just being redundant: Not for LiFePO4. If charging under the chemical charging minimum temperature for LiFePO4, every bit of charging voltage you do under that temperature will...

I skimmed your post and thought you were recommending turning it into a refrigerator. I realize now that's not what you said. But here's how I replied when I still thought that, and it has some long references: According to this one hour presentation at (also at non-Google server...

Scary. I prefer balancing at any state of charge. Reasons: I don't want to charge my batteries all the way, because they will have lower life sitting at higher state of charge. I don't have a choice. I.e., whatever I harvest from the farms or buy from the other farms is what I get. (Solar...

Yes, I'm bored. Yes, I want to experiment. Yes, I might want to start some supply businesses. Yes, I care about being safe. Yes, I'd like to be legally compliant even in over-regulated areas. But first, I want to get some inexpensive land somewhere where there are no or few regulations so...

Wait ... the idea is to have the highest voltage practical going long distances; the fact the well pump is 240VAC is more perfect. Whatever good pure sine wave inverter he can get that can handle the pump starting load (maybe with an added SoftStart on the pump) would be great. He wants a...

I started reading https://marinehowto.com/lifepo4-batteries-on-boats/ when I found out about companies I've never heard of. One of the first I found was Lithionics (https://lithionicsbattery.com/), and everything on their web site says they make a great product with all of the obvious features...

Uhoh. I didn't know this, but it makes sense: https://www.orionbms.com/general/using-parallel-strings/

Voltage isn't the only necessary electrical measurement necessary for battery health; one also needs measurement that can get things like coulombs (with a coulomb count to know how full) and amps, as well as environmental (tempature, and I don't know if anything else is important). Is that done...

Ok. Bought one for $277.95, arriving Nov 24-27.

That's $1,888 per kWh on that 960Wh battery without an inverter/charger and electric source gateway, which you saw a few years ago before the stock-market runup and continued anti-individual-storage pressures (so maybe they put in a price increase) I also saw another Lithionics reseller a few...

I'm starting to think a dedicated low temp relay would work, as well as use that relay to be the cutoff instead of the MOSFETs in a lot of these streetlight BMSs.

I just signed up here. I would love to build a system of DIY UL listed home inverter and battery systems. I'm trying to input knowledge, and when I get a little unemployment money built up, I'm going to start trying to build boxes, batteries with inverters and connectors and stuff and setting...

Thanks! Yup! That section isn't too thought-intensive, so it's good to speed it up. But some of his discussions can use about as much thought as he gives you time for when he's talking slow. Here's my original post which includes a description of what I already did: I think I want to add a...

Great comments. I would say three things: You don't know what state of charge the battery will be at ever in the future in a daily cycle battery based upon weather and home users. In a daily cycle home use battery based on solar, you know neither the bottom nor the top amount of charge. I...

Those are great numbers. I like that you have both morning, mid day, and afternoon directions covered. If you ever get a battery, that will help recharge the battery sooner in the morning, so you won't have to have as much battery to last til afternoon, then you will continue to have solar as...

I was very excited about this product when you referred it until I looked at its specs: an anemic 3,600 watts, maybe even less! Also, it seems to have a requirement for a battery backup unit which might not allow DIY batteries.

Then it's doable! :):coffee: I wasn't sure if their interface had required certificates that we can't get. You think it doesn't require an ungettable key?

Test results video at end of post with description. Regarding Will Prowse's review of these nice batteries: Then Will commented on that video with this update: "Correction to this video: Unfortunately, I was correct about questioning the low temp charging protection on the powerblock...

They're shipping again according to them: I got this message from them in Ebay: " New message from: elec-module58 (13,522) Hi sir, I'm sorry to disturb you. Because the product was out of stock, we cancelled your order to protect your interests, but now this items have arrived and...

Update: I turned off the power supply, and only had a fan and a few USB devices running off the battery. This is a discharge test. It showed 13.2 volts. I put the temp sensor in the dry ice. It dropped to 12.7 volts. The devices (fan, USB devices) all continued running. I took the temp...

New discharge test with capacitors unplugged: 13.2 volts in use room temp. 12.7 volts in use when temp sensor is placed in dry ice. Devices still running fine. Returns back to 13.2 volts when temp sensor removed from dry ice. Devices never shut down.

I don't have am amp meter. Could it be that it was still charging a little, or not at all? What kind of hall effect sensor works on circuits like this? Does Ideal sell one or something?