Search found 2363 matches

by weber
Today, 13:58
Forum: Batteries, charging, management and monitoring
Topic: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale
Replies: 208
Views: 6238

Re: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale

...the Victorian government might want their $825,000 back. Ouch! :o I hate how the government just hands out money willy-nilly to people with half-baked ideas. They should just give it to me :roll: :lol: Here are the details: https://www.premier.vic.gov.au/developing-solar-battery-storage-kits-and...
by weber
Today, 12:24
Forum: Batteries, charging, management and monitoring
Topic: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale
Replies: 208
Views: 6238

Re: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale

@Supercaps We're still waiting for you to explain why, when you remove the Kilowatt Labs sticker from your claimed USB-chargeable AA-sized "graphene supercapacitor", it says "LTO" and "battery"? And why the words "graphene" and "capacitor" are nowhere to be found?
by weber
Today, 12:12
Forum: Batteries, charging, management and monitoring
Topic: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale
Replies: 208
Views: 6238

Re: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale

Hi Enthusiasts, to help address the comments before this one, we just made a Super Capacitor fast charge test. https://youtu.be/iEF03oyGWrI Hi Supercaps . I love how, in all these test videos, you decide in advance that it's a supercapacitor, then the test itself shows unambiguously that it's a bat...
by weber
Sat, 21 Apr 2018, 19:59
Forum: The Lounge
Topic: PIP-4048MS inverter
Replies: 2109
Views: 212038

Re: PIP-4048MS inverter

We haven't had enough sun to fully charge the battery but I have noticed on a couple of occasions that the PIP has gone from Bulk QQ=11 to Absorb QQ=12 well before the battery voltage has reached the CV voltage. Hi Simon, it is considered to be in absorb stage when it is within 0.5 volts of the abs...
by weber
Sun, 15 Apr 2018, 12:23
Forum: Batteries, charging, management and monitoring
Topic: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale
Replies: 208
Views: 6238

Re: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale

But this, and all similar articles, are irrelevant Why....because they contradict your opinions and interests? Wow. Are you 15 years old? You edit off the rest of the paragraph that explains exactly why they are irrelevant, which has nothing to do with my opinions or interests, and then you write t...
by weber
Sun, 15 Apr 2018, 11:40
Forum: Batteries, charging, management and monitoring
Topic: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale
Replies: 208
Views: 6238

Re: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale

As @supercaps said in the 21st post in this thread, there is indeed a lithium based electrode. Show me where he said "lithium based electrode" as opposed to "lithium electrode" as you quoted above. And he quickly changed it to "lithium-ion electrode" when I pointed out how dangerous lithium electro...
by weber
Sun, 15 Apr 2018, 09:24
Forum: Batteries, charging, management and monitoring
Topic: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale
Replies: 208
Views: 6238

Re: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale

Found this online which describes non aqueous, hybrid supercapacitor (C-LTO) cells using an AC cathode from 2012. Sounds exactly like what @supercaps has been describing ... That's simply false. They sound nothing like what Supercaps has been describing. Paul has never once mentioned lithium titani...
by weber
Sat, 14 Apr 2018, 09:40
Forum: Batteries, charging, management and monitoring
Topic: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale
Replies: 208
Views: 6238

Re: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale

Nice sleuthing there, @weber. And (Oh, for goodness sake) you can actually see the 'h' on the end of '1000mAh' showing, as the sticker doesn't fully cover it. Thanks TCryptos . You can indeed see the "h". So Paul ( Supercaps ), assuming you didn't put that Kilowatt Labs sticker there yourself, sure...
by weber
Sat, 14 Apr 2018, 09:14
Forum: The Lounge
Topic: PIP-4048MS inverter
Replies: 2109
Views: 212038

Re: PIP-4048MS inverter

I have bought 11 months ago 48 pcs Winston LifePO4 for a friend. They worked well, but 2 weeks ago 18 pcs got swollen and they are all shortcircuited. How did you have these 48 cells configured into a battery? Did you first parallel them in groups of 3 (making so-called "buddy triples"), then conne...
by weber
Sat, 14 Apr 2018, 06:22
Forum: The Lounge
Topic: PIP-4048MS inverter
Replies: 2109
Views: 212038

Re: PIP-4048MS inverter

On a system with 5 PIP4048 in parallel, for the last week it doesn't change from grid to solar. I have setup from Watchpower the charging only from grid 2A, (i think it's 10A for the whole 5 pcs) because from solar I don't have such low value and I've lost 2 groups of Winston 16s 40Ah by charging w...
by weber
Fri, 13 Apr 2018, 21:14
Forum: Batteries, charging, management and monitoring
Topic: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale
Replies: 208
Views: 6238

Re: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale

Paul has kindly posted video of his presentation at the Smart Energy Conference and Exhibition in Sydney this week. https://www.youtube.com/watch?v=SlwFkagsjd4 In addition to the usual false claims, we have a new "graphene supercapacitor" device that can be seen from 11:25 . This is a pretty neat pr...
by weber
Wed, 11 Apr 2018, 07:14
Forum: Batteries, charging, management and monitoring
Topic: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale
Replies: 208
Views: 6238

Re: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale

This graph (blue curve) is for the first constant voltage charge test that Paul posted—the one done at 2.72 V that took 15 minutes. Paul kindly provided graphs for all subsequent tests, but for this one I had to freeze-frame it and type the numbers into a spreadsheet. I've corrected for the zero off...
by weber
Tue, 10 Apr 2018, 20:30
Forum: Batteries, charging, management and monitoring
Topic: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale
Replies: 208
Views: 6238

Re: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale

They have told us that we may have a test version of the smallest capacitor and I am sure ready to open it. Any tips on what we can do today to try to figure out if this is a scam or not? Physically opening it may be difficult today. There's not much point in opening up one of the cells unless you ...
by weber
Tue, 10 Apr 2018, 19:51
Forum: Batteries, charging, management and monitoring
Topic: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale
Replies: 208
Views: 6238

Re: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale

They posted internal pix of their "supercaps" on F/Book - https://www.facebook.com/kilowattlabs/photos/pcb.196419307379496/196416580713102/?type=3&theater Odd that they copied these from a previous post they did on 26 Jan 2016, over 2 yrs earlier ! So many more questions :-) I referred to those ima...
by weber
Mon, 09 Apr 2018, 08:52
Forum: Batteries, charging, management and monitoring
Topic: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale
Replies: 208
Views: 6238

Re: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale

Thanks Paul, for providing further evidence that this is not a supercapacitor, and that it is in fact a lithium titanate cell. Heavier terminals are not your problem. Not that we needed further evidence. That you can't see this, beggars belief. I see the surface of the cell got up to 69 °C. What did...
by weber
Sun, 08 Apr 2018, 14:46
Forum: Batteries, charging, management and monitoring
Topic: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale
Replies: 208
Views: 6238

Re: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale

I just learned that even perfect graphene does not have any more surface area per gram than the best activated-carbon (made from pyrolised coconut shells) that has been used in supercapacitors for a decade or more. https://en.wikipedia.org/wiki/Graphene#Properties So the promise of graphene supercap...
by weber
Sat, 07 Apr 2018, 12:28
Forum: The Lounge
Topic: PIP-4048MS inverter
Replies: 2109
Views: 212038

Re: PIP-4048MS inverter

Hi sinux . Coulomb and I recognised that we hadn't fully investigated your earlier bug report. We finally got a chance to do so, spending many hours on it yesterday. We note that we have already determined that your second problem—the exit from an otherwise timed absorb stage when the charge current...
by weber
Thu, 05 Apr 2018, 11:36
Forum: Batteries, charging, management and monitoring
Topic: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale
Replies: 208
Views: 6238

Re: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale

Skeleton Technologies claims to produce the highest performing graphene supercapacitors in the world. Their 3200 farad graphene supercap is the size of a coke can and costs AU $76. ($760 for a box of 10). It occupies 23 times the volume of Kilowatt Labs' supposed 3000 farad graphene supercap.
by weber
Wed, 04 Apr 2018, 07:43
Forum: Batteries, charging, management and monitoring
Topic: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale
Replies: 208
Views: 6238

Re: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale

As I mentioned earlier, even a battery has some capacitance. Whirlpool forum contributor FedEx found this recent Nature paper on hybrids. See the comparison of voltage curves for constant-current charge and discharge in figures 5 and 6. No matter whether it is a battery or a supercap, or some kind o...
by weber
Tue, 03 Apr 2018, 09:01
Forum: Batteries, charging, management and monitoring
Topic: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale
Replies: 208
Views: 6238

Re: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale

At $1.8USD it still works out too expensive. Thats almost $2800 just for the cells. You complain about the speck in our eye, but ignore the log in your own. Where is your evidence that anyone right now can make or buy an LIC to store 3 Wh in an 18 x 65 mm can for all the money in the world, let alo...
by weber
Mon, 02 Apr 2018, 21:25
Forum: Batteries, charging, management and monitoring
Topic: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale
Replies: 208
Views: 6238

Re: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale

Shouldn't the curve look similar considering they both have lithium electrodes? A lithium-ion battery/supercapacitor hybrid is also called a lithium-ion capacitor or LIC for short. You can see the difference between the voltage curves of an LIC and a lithium-ion battery (LIB) in figure 3a of this p...
by weber
Mon, 02 Apr 2018, 20:46
Forum: Batteries, charging, management and monitoring
Topic: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale
Replies: 208
Views: 6238

Re: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale

Actually here is the reply when the manufacture of the LTO electrochemical battery referenced was asked for a quote for a 3Wh cell. ... You got a quote for "a" 3 Wh cell? I think a quote for a million of them would be more relevant—more like the price Kilowatt Labs would have paid. I posted in this...
by weber
Mon, 02 Apr 2018, 06:42
Forum: Batteries, charging, management and monitoring
Topic: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale
Replies: 208
Views: 6238

Re: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale

Here's another idea, Paul. I would be happy to pay for a few LTO battery cells to be delivered to you, so you can subject them to exactly the same tests you have done on your supposed supercapacitors. If they were to behave in exactly the same way, would you then accept that your devices are in fact...
by weber
Sun, 01 Apr 2018, 20:14
Forum: Batteries, charging, management and monitoring
Topic: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale
Replies: 208
Views: 6238

Re: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale

Paul, I know this must be very difficult for you to accept, but the manufacturer is lying to you. None of those things you have written, about the differences between your device and an LTO battery, is true. We know about lithium battery/supercapacitor hybrids. Your tests do not show the slightest h...
by weber
Sat, 31 Mar 2018, 10:07
Forum: Batteries, charging, management and monitoring
Topic: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale
Replies: 208
Views: 6238

Re: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale

I've charged a lithium battery or two in my time, but never a supercapacitor. The results look like what I'd expect with a battery - what would the difference be with a capacitor? Can someone who knows about capacitors please show us what the current vs time curve should look like if this is a 3000...