This is why there's a bit of a turn to locally made batteries with open and honest product info. Marketing is all great until you dig a little deeper. Well done Craig! The notion that Australia has lost the ability to manufacture is a myth. Sure we can't economically make the cells or BMS's, but we sure can design, assemble and test them to a high standard right here on our own land. Full disclosure... Yes I make batteries under the brand PowerPaul Australia. We cop a lot of flack but also take a lot of pride in what we do. We don't operate for profit alone, and our priority is improvement instead of profits. Making money happens by accident because of that attitude.
hi Craig, I know there expensive to get your hands on but testing some of the off grid home battery setups, in particular the expandable server rack style will be interesting. Especially with all the talk about installing batteries in people houses. Thanks
Thanks for revealing where the LiFePO4 automotive batteries are at by at least some brands. Maybe accountants and marketing are responsible for short cuts. For that price this company needs to do a practices reassessment.
I'm with you Alex. With the paralleled cells, the BMS is looking at an average. There could easily be hidden bad cells within each group. Nice test Craig. Looking forward to the DC to DC test. The cable lengths should be the same. Kinda silly of their engineers to design otherwise.
Conductors in parallel need to be the same, length, type, and cross section area otherwise just like in your video the currents will be inequitable. 10AWG is 5.2mm2 so that short one certainly makes me feel uncomfortable. If it was up to me my preference is however many S but 1P. I like the idea that the BMS is looking at the individual cell itself and not a string of cells where a healthy cell could mask an unhealthy cell and without doing a discharge test you can’t readily know. Good review! If you can get more load on it you might be able to exasperate the result further as below. Heat produced = i^2×R×t, assuming R is constant, which I know as temperature increases it will go up. But for the purpose of the exercise heat produced is directly proportional to square of current. So,if current is doubled then heat produced is increased four times the inital value.
WOW just goes to show you never know what’s under the lid! Didn’t make capacity, using 32 small 25ah cells! Why? Has to be heaps cheaper! Wiring and connector issues, and obviously the app is not reading four cells but a group as someone has already said! I wouldn’t be happy forking out over 2K for this! Great test!
Would have been good to scan the QR code from the cells to get more information about them. And the numbers off the BMS. So how does the app work? It's showing 4 cells not 32! So it's measuring a group of 9 and what taking a average of the voltage? It's just deseptive and disappointing, no doubt there are other higher end batteries the same!
Come to think of it, why would you buy that Invicta battery for 2200 bucks when you could have the smaller and better Victron 200ah battery for roughly 1500 or so, plus the cost of the separate BMS they require. The BMS might be 300 bucks or so, so that's roughly 1800 for the Victron all up. Am I right or is there something I haven't taken into account?
There is abit more like the FETs etc to accompany the BMS. But yeah it’s a lot of money, a large foot print and feels like someone needed to crack the lid on it so consumers know what they are actually getting
I reckon that -ve cable lengths are a big problem. I like the approach of paralleling all those cells - it averages the cell parameters. The price is silly by a factor of 2 at least.
This is why there's a bit of a turn to locally made batteries with open and honest product info. Marketing is all great until you dig a little deeper. Well done Craig!
The notion that Australia has lost the ability to manufacture is a myth. Sure we can't economically make the cells or BMS's, but we sure can design, assemble and test them to a high standard right here on our own land.
Full disclosure... Yes I make batteries under the brand PowerPaul Australia. We cop a lot of flack but also take a lot of pride in what we do. We don't operate for profit alone, and our priority is improvement instead of profits. Making money happens by accident because of that attitude.
Good job mate!! Finally someone keeping these bloody crooks honest! Keep up the good work
I just keep coming back to watch this video because I love it so much
This is the best video I have ever seen
hi Craig,
I know there expensive to get your hands on but testing some of the off grid home battery setups, in particular the expandable server rack style will be interesting. Especially with all the talk about installing batteries in people houses. Thanks
Thanks for revealing where the LiFePO4 automotive batteries are at by at least some brands. Maybe accountants and marketing are responsible for short cuts. For that price this company needs to do a practices reassessment.
I'm with you Alex. With the paralleled cells, the BMS is looking at an average. There could easily be hidden bad cells within each group.
Nice test Craig. Looking forward to the DC to DC test.
The cable lengths should be the same. Kinda silly of their engineers to design otherwise.
Conductors in parallel need to be the same, length, type, and cross section area otherwise just like in your video the currents will be inequitable.
10AWG is 5.2mm2 so that short one certainly makes me feel uncomfortable.
If it was up to me my preference is however many S but 1P. I like the idea that the BMS is looking at the individual cell itself and not a string of cells where a healthy cell could mask an unhealthy cell and without doing a discharge test you can’t readily know.
Good review! If you can get more load on it you might be able to exasperate the result further as below.
Heat produced = i^2×R×t, assuming R is constant, which I know as temperature increases it will go up. But for the purpose of the exercise heat produced is directly proportional to square of current. So,if current is doubled then heat produced is increased four times the inital value.
WOW just goes to show you never know what’s under the lid! Didn’t make capacity, using 32 small 25ah cells! Why? Has to be heaps cheaper! Wiring and connector issues, and obviously the app is not reading four cells but a group as someone has already said! I wouldn’t be happy forking out over 2K for this! Great test!
Would have been good to scan the QR code from the cells to get more information about them. And the numbers off the BMS. So how does the app work? It's showing 4 cells not 32! So it's measuring a group of 9 and what taking a average of the voltage?
It's just deseptive and disappointing, no doubt there are other higher end batteries the same!
Awesome video mate. It's amazing how they can charge that amount of money for poor quality. Good to see you're keeping them honest!
I wouldn't pay half that. It's a fail on many levels.
Come to think of it, why would you buy that Invicta battery for 2200 bucks when you could have the smaller and better Victron 200ah battery for roughly 1500 or so, plus the cost of the separate BMS they require. The BMS might be 300 bucks or so, so that's roughly 1800 for the Victron all up.
Am I right or is there something I haven't taken into account?
There is abit more like the FETs etc to accompany the BMS. But yeah it’s a lot of money, a large foot print and feels like someone needed to crack the lid on it so consumers know what they are actually getting
I reckon that -ve cable lengths are a big problem. I like the approach of paralleling all those cells - it averages the cell parameters. The price is silly by a factor of 2 at least.
Have you pulled apart any itechworld batteries yet??
😂😂😂 that hilarious, all the Invicta fan boys won't like you revealing the fraud! Just goes to prove all the" you get what you pay for" is BS!
Is there any chance you'll be doing a capacity test on the victron?