3:28 your wire resistance it's pretty high. Cell number 01 is 0.422....did you put a fuse or something in between? Is it even necessary a fuse in your opinion?
The way these balancers work is they detect the highest and lowest cell voltage. The highest cell charges up a capacitor and then that capacitor discharges it’s energy into the lowest cell. So if you put a clamp meter on your lowest cell you will see it charge for a couple of seconds at 1 amp and then that will drop to zero for a few seconds while the capacitor recharges and then you will see the 1 amp again. As the whole pack was well out of balance and quite high capacity cells that is why it too so long. You can get a similar 2 amp version with just LEDs so no need for an app. Of course expensive is relative - a Batrium will set you back a lot more.
Interesting video, thank you. On the APP the "Power off voltage" isreferring to the single cell right? How did you deal with the seller to get a replacement without sending the broken one back? Is it from Aliexpress right?
I have 4 of the "expensive" balancers. I have 8 packs in sets of 2. My balancers have max 2.0 amp. It has checked the IR. Most of my junk old BYD's are about 1.4ohm. I cannot set the balancing amp higher than 1.3. It simply doesn't if too much resistance. My junked out BYD battery packs (LiFePo4) have never been this balanced. My cells orignininally are 200ah, so gigantic in terms of capacity, so think about this. After seven full days, starting at 0.580 mV difference, now it shows 0.051 mV difference. These balancers work.
Wait are you really reporting in mV bec 0.580mV and 0.051mV are 0.00058V and 0.000051V, respectively? Most lithium cells are rated 3.2V/3.7V/3.8V nominal and most multimeters will have a precision resolution of thousandths of a Volt (0.001 V) at those voltages.
well tony some times we just never know what we get when we purchase things if they are local or foreign made, guess its a crap shoot, lol like your 80's dance music 😎your daughters influencing you 👍
Just received the both the 5A & 10A version of the cell balancer for evaluation. Will be using one of them for a 2P16S 480 AH solar battery DIY build as soon as I can afford the 32 LiFePO4 prismatic cells. Seems like every time I purchase cells from Alibaba, the price goes down next month but I guess you cannot wait forever. Unfortunately, shipping times from China are now much longer than before the lockdowns. Hope that improves soon.
@@shinosg-wiz4619, I tested the 5A cell balancer and it worked perfectly and I did verify the balance current was indeed 5A using a Fluke meter. Never had the chance to test the 10A unit because I've been working in Phoenix during the week and driving to CA and back every weekend. With the slow down in business, my wife's income has gone down so we decided to wait on building the new 480AH battery. The 270 AH batteries are still working well so no hurry. On second thought, we are now considering the Zero Mass Water panels ($6,500) that absorb water from the moist night air and then during the day the solar panel provides power to extract the water and pump it into a storage container for use in the house similar to how an under sink RO filter stores clean water in a pressure tank. Battery is going to have to wait. Water is becoming a problem in Southern Ca. Regards,
@@bentleyjarrard885 most water is with no minerals right? You gonna mineralize it for drinking or just for sprinkling on the garden? I've asked you about the 5a and 10a cos I was thinking to put it on my tiny electric car. Probably the 10a ita better for this kind of applications. How do you prevent over voltage and under voltage? Here in Europe situation ain't good as well *_*
@@shinosg-wiz4619, Over/Under Voltage, Over/Under Temperature & Over current is monitored and controlled by a battery management system. There are 2 types of BMS. One kind where the main current flows through the PCB and has on board current switching along with individual wires for each cell voltage as well as inputs for temp probes. The other type uses a DC shunt to monitor current and then will engage or disengage a golf cart type relay as necessary. This is the type I am using on my solar battery. Its made by ZEVA in Australia, BMS V3, is good for up to 16 cells. Its surprising that to date I am not aware of any products that combine both BMS and cell balancing functions into one integrated controller. Of the few BMS modules that claim to have cell balancing included its only very small currents and often just use resistors to "bleed" off the excess voltage of the high cells rather than using true active balancing where the high voltage is transferred to the lowest cells with little wasted power. I have a video posted of my solar battery build.
12:06 "voltage shouldn't change" that's not really true. In li-ion and lifepo4 batteries the last bit of voltage curve represents less actual energy storage. For instance li-ions live most of their life around 3.7V (3.2V for lifepo4). So to drop from 4.2V to 4.1V takes a lot less energy exchange than from 3.7V to 3.6V (at the same current). I would expect with some cells fully charged and others nearly drained that the overall pack voltage does drop.
Greetings, I have the same BMS, it is very good, I would like to know if there will be any possibility to see the remote foema app, since I can only use it near the BMS, I mean to be able to see the parameters anywhere, not only in my House. Thanks
Hi mate I have the 2amp one. I noticed in one of your other videos you made the Bluetooth module external. Do you believe this is possible. Maby you could try on the faulty one. As the range is really bad. Thanks as always
Yeah, it's possible - there's only 4 wires needed and it's the same principle as the BMS I did. They use identical bluetooth modules and they're mounted the same.
Hi, I have a 72v 40ah battery with Panasonic NCR 18650PF cells. My BMS is rated at only 80A so I’m not getting the full discharge capability from my cells. I am purchasing a Sabvoton 150A controller, so can I just upgrade my battery BMS? If so I’d love to use your BMS and app. Thanks !!!
Yes I did and they're all within 30mV so it's pretty accurate. The only annoying part is, you can only adjust the total battery voltage and not the cell voltages.
@@rikdehaas6398 When I say 30mV, I mean they all measured +/- 30mV with a multimeter against the displayed voltages. When they've balanced, they are within the 5mV difference that it allows.
MFB, I'm using the 2A version, works really well on a 16S 120AH solar battery. Just received a box from China with one of each, 5A & 10A version. Will be testing them soon. Paid $300 and $500 plus $125 for express shipping so they are expensive. Prices are about the same on Alibaba or Aliexpress, I think its the same company.
I have the same balancer, use it with I-phone, with 24s LiFePo4 cells. works great within 15-20 feet away. Must have gotten a bum one...does yours have eight 1/16 holes drilled thru the outer casing to allow signal to be seen by your phone?
Great video Tony. Try the balancers with a charger connected. You should obtain better results. I’ve seen one of my packs 100+mv out only to be brought back into balance approx 10mv within two hours.
As I'm only using a single string of cells, anything over 1.5A balancing would damage the cells and possibly be a fire hazard. I'd have to build a 14s 4p pack to test them.
Looks like you did not top balance first. It would help if we knew the AH of your cells. The balance is 1 cell at a time, so at 2 amps, if not top balanced, it can take days, especially with high ah cells like 280ah.
I run that exact same balancer, except I have the 2 amp model. It is a great piece of kit. does exactly what it says. I have a pack that is poorly built, and some cell groups have significantly more capacity than others, and it makes it usable on my Solar system
BMS's balance only at very end of charge cycle when the battery is basically full. Active balancers balance all the time even when the battery isn't charging by borrowing charge from the series of cells 1 cell at a time to refill the lowest cell in the pack. So if you had one cell that had a very small difference in capacity the active balancer would keep it at the same voltage as the rest of the cells in the pack. This can both reduce charge time (if your charger was having to slowly balance your pack on every charge) and give you slightly longer run times in some cases (if 1 cell was getting discharged faster than the rest). The only down side is that most of these active balancers are too slow to provide any significant benefits over just having a good charger/BMS combo that can quickly balance the cells in the pack with every charge.
Tony in one of your video's in December last year you recommend if anybody wanted to have a battery pack rebuilt to contact Mr Steve D. I did so using the link from the video in December l sent him a Snap-on 7.2v 6x AAA I have been promised it back several times but it has not arrived now he's not answering WhatsApp messages or my phone calls can you help in this matter thanks Paul..
Yes mate, he's having a few problems with the world as it is as the moment. Ordering parts which usually take 2-3 weeks, are taking 2-3 months. I did email him last week and he said "I'm trying to get orders out as quickly as I can.... I am getting orders out but still not getting any BMS through and the last straw was an order that I placed on Feb 2nd got cancelled on 17th march. I want to make sure that you know I am not disappearing on anyone and those that are awaiting packs will get them... ". Hang in there, he will have ordered your parts but it's taking much much longer for the bits to arrive (something that none of us could have predicted).
I saw an OAP in (what looked like) a full hazmat suit the other day......the world's gone mad mate. I'm sure a nuclear fallout would have looked more aceptable.
Hi Matt, drop me an email - vortecks2000@gmail.com and I'll see what I can do. Time is somewhat limited at the moment so it'll take me a while to reply. Tony
The thumb black bit is starting to break through now, so it's a matter of time before it breaks off......bloody reciprocating saws are dangerous and Tony shouldn't be allowed to use them 😂
![[DRAGON BALL LEGENDS REVEALS ＆ STUFF] LEGENDS FESTIVAL 2024 Special Edition Part 2](http://i.ytimg.com/vi/af0phKxitX8/mqdefault.jpg)
3:28 your wire resistance it's pretty high. Cell number 01 is 0.422....did you put a fuse or something in between? Is it even necessary a fuse in your opinion?
The way these balancers work is they detect the highest and lowest cell voltage. The highest cell charges up a capacitor and then that capacitor discharges it’s energy into the lowest cell. So if you put a clamp meter on your lowest cell you will see it charge for a couple of seconds at 1 amp and then that will drop to zero for a few seconds while the capacitor recharges and then you will see the 1 amp again. As the whole pack was well out of balance and quite high capacity cells that is why it too so long. You can get a similar 2 amp version with just LEDs so no need for an app. Of course expensive is relative - a Batrium will set you back a lot more.
@vortecks a simple push button switch connecting primary power should do the trick to easy resetting it
Interesting video, thank you. On the APP the "Power off voltage" isreferring to the single cell right? How did you deal with the seller to get a replacement without sending the broken one back? Is it from Aliexpress right?
Yes, the power off voltage is for a single cell.
I actually bought it from eBay and they didn't argue after I sent them a screenshot 😁
I have 4 of the "expensive" balancers.
I have 8 packs in sets of 2.
My balancers have max 2.0 amp. It has checked the IR. Most of my junk old BYD's are about 1.4ohm.
I cannot set the balancing amp higher than 1.3. It simply doesn't if too much resistance.
My junked out BYD battery packs (LiFePo4) have never been this balanced.
My cells orignininally are 200ah, so gigantic in terms of capacity, so think about this.
After seven full days, starting at 0.580 mV difference, now it shows 0.051 mV difference.
These balancers work.
Wait are you really reporting in mV bec 0.580mV and 0.051mV are 0.00058V and 0.000051V, respectively? Most lithium cells are rated 3.2V/3.7V/3.8V nominal and most multimeters will have a precision resolution of thousandths of a Volt (0.001 V) at those voltages.
@@r.vincenta.9678 remove the m,
After seven full days, starting at 0.580 V difference, now it shows 0.051 V difference.
Good catch!
So it uses the highest voltage batteries to charge the lowest one? I assume it just paralleles them an equalizes them for a while?
well tony some times we just never know what we get when we purchase things if they are local or foreign made, guess its a crap shoot, lol like your 80's dance music 😎your daughters influencing you 👍
Just received the both the 5A & 10A version of the cell balancer for evaluation. Will be using one of them for a 2P16S 480 AH solar battery DIY build as soon as I can afford the 32 LiFePO4 prismatic cells. Seems like every time I purchase cells from Alibaba, the price goes down next month but I guess you cannot wait forever. Unfortunately, shipping times from China are now much longer than before the lockdowns. Hope that improves soon.
Ohh cool! How was your experience with the 5a and 10A? I've a DIY "a and takes like 4 days to balance a 260ah battery pack
@@shinosg-wiz4619, I tested the 5A cell balancer and it worked perfectly and I did verify the balance current was indeed 5A using a Fluke meter. Never had the chance to test the 10A unit because I've been working in Phoenix during the week and driving to CA and back every weekend. With the slow down in business, my wife's income has gone down so we decided to wait on building the new 480AH battery. The 270 AH batteries are still working well so no hurry. On second thought, we are now considering the Zero Mass Water panels ($6,500) that absorb water from the moist night air and then during the day the solar panel provides power to extract the water and pump it into a storage container for use in the house similar to how an under sink RO filter stores clean water in a pressure tank. Battery is going to have to wait. Water is becoming a problem in Southern Ca. Regards,
@@bentleyjarrard885 most water is with no minerals right? You gonna mineralize it for drinking or just for sprinkling on the garden?
I've asked you about the 5a and 10a cos I was thinking to put it on my tiny electric car. Probably the 10a ita better for this kind of applications. How do you prevent over voltage and under voltage?
Here in Europe situation ain't good as well *_*
@@shinosg-wiz4619, Over/Under Voltage, Over/Under Temperature & Over current is monitored and controlled by a battery management system. There are 2 types of BMS. One kind where the main current flows through the PCB and has on board current switching along with individual wires for each cell voltage as well as inputs for temp probes. The other type uses a DC shunt to monitor current and then will engage or disengage a golf cart type relay as necessary. This is the type I am using on my solar battery. Its made by ZEVA in Australia, BMS V3, is good for up to 16 cells. Its surprising that to date I am not aware of any products that combine both BMS and cell balancing functions into one integrated controller. Of the few BMS modules that claim to have cell balancing included its only very small currents and often just use resistors to "bleed" off the excess voltage of the high cells rather than using true active balancing where the high voltage is transferred to the lowest cells with little wasted power. I have a video posted of my solar battery build.
Whatsup! Did you had chance trying the 10a balancer?
12:06 "voltage shouldn't change" that's not really true. In li-ion and lifepo4 batteries the last bit of voltage curve represents less actual energy storage. For instance li-ions live most of their life around 3.7V (3.2V for lifepo4). So to drop from 4.2V to 4.1V takes a lot less energy exchange than from 3.7V to 3.6V (at the same current).
I would expect with some cells fully charged and others nearly drained that the overall pack voltage does drop.
0:44 inductor based active balancer. problem with these is that, it creates spike voltage across the inductors
Greetings, I have the same BMS, it is very good, I would like to know if there will be any possibility to see the remote foema app, since I can only use it near the BMS, I mean to be able to see the parameters anywhere, not only in my House. Thanks
Hi mate I have the 2amp one. I noticed in one of your other videos you made the Bluetooth module external. Do you believe this is possible. Maby you could try on the faulty one. As the range is really bad. Thanks as always
Yeah, it's possible - there's only 4 wires needed and it's the same principle as the BMS I did. They use identical bluetooth modules and they're mounted the same.
How long balance will take . The Ant balance 16s -20s will better but only work off use charger. It’s balance good
What song is that, thanks.
Hi, I have a 72v 40ah battery with Panasonic NCR 18650PF cells. My BMS is rated at only 80A so I’m not getting the full discharge capability from my cells. I am purchasing a Sabvoton 150A controller, so can I just upgrade my battery BMS? If so I’d love to use your BMS and app. Thanks !!!
Tony this is an interesting vid! I have a question: did you measure the cell voltages with a multimeter to check the balancers measurements?
Yes I did and they're all within 30mV so it's pretty accurate. The only annoying part is, you can only adjust the total battery voltage and not the cell voltages.
@@Vortecks Thats a pity. 30 mV is still a bit too much. Thanks man!
@@rikdehaas6398 When I say 30mV, I mean they all measured +/- 30mV with a multimeter against the displayed voltages. When they've balanced, they are within the 5mV difference that it allows.
What do you feel is better., the standard resistor BMS or the Active balancer for an high powered ebike? They also have 1, 2, 5, and 10A versions now.
MFB, I'm using the 2A version, works really well on a 16S 120AH solar battery. Just received a box from China with one of each, 5A & 10A version. Will be testing them soon. Paid $300 and $500 plus $125 for express shipping so they are expensive. Prices are about the same on Alibaba or Aliexpress, I think its the same company.
@@bentleyjarrard885 how did it go with the 5 and 10a? worth? working fine?
Hey Tony, when the screen goes into “sleep mode”, just hit your menu button top left, and reconnect to device....no need to unplug a thing.
Tried that mate but the balancer wasn't even listed, the only way to get it back was by disconnecting it.
I have the same balancer, use it with I-phone, with 24s LiFePo4 cells. works great within 15-20 feet away. Must have gotten a bum one...does yours have eight 1/16 holes drilled thru the outer casing to allow signal to be seen by your phone?
@@Vortecks Did you find a woraround like a switch instead of disconnecting all the time to have it listed on the bluetooth devices?
Great video Tony. Try the balancers with a charger connected. You should obtain better results. I’ve seen one of my packs 100+mv out only to be brought back into balance approx 10mv within two hours.
What about the mid priced balancers, they are around 50$ and go up to 5amps and have solid state capacitors on the circuit too.
As I'm only using a single string of cells, anything over 1.5A balancing would damage the cells and possibly be a fire hazard. I'd have to build a 14s 4p pack to test them.
link?
Looks like you did not top balance first. It would help if we knew the AH of your cells. The balance is 1 cell at a time, so at 2 amps, if not top balanced, it can take days, especially with high ah cells like 280ah.
Hi. I want to build 6s battery for quad, engine is 500W. what BMS to use for battery pack. thanks. gonna use laptop battery's.
I run that exact same balancer, except I have the 2 amp model. It is a great piece of kit. does exactly what it says. I have a pack that is poorly built, and some cell groups have significantly more capacity than others, and it makes it usable on my Solar system
May be with the 5a or the 10a active balancer might cope with the heavily mismatched cells.
How do toy switch it off? Everytime unplugging the cables?
You don't unplug it ever. It draws only about 10mA from the entire pack.
hi tony just brough one of these whats the app called just got it in plain box with no instructions lol
What is the difference between a bms and these things?
This balances the voltage with no cut off. A BMS will balance the battery and also cut off the output supply at a high and low set voltage.
BMS's balance only at very end of charge cycle when the battery is basically full. Active balancers balance all the time even when the battery isn't charging by borrowing charge from the series of cells 1 cell at a time to refill the lowest cell in the pack. So if you had one cell that had a very small difference in capacity the active balancer would keep it at the same voltage as the rest of the cells in the pack. This can both reduce charge time (if your charger was having to slowly balance your pack on every charge) and give you slightly longer run times in some cases (if 1 cell was getting discharged faster than the rest). The only down side is that most of these active balancers are too slow to provide any significant benefits over just having a good charger/BMS combo that can quickly balance the cells in the pack with every charge.
@@mitchellwilson12354 right....but seems there are 5a and 10a active balancers now on aliexpress...but its kinda pricy..wonder if they actually work.
A worthwhile test I think, and if it did catch fire at least you would have it on camera!
Look after yourself Tony.
Excellent vidéo!
enjoyed the vid tony , keep them coming mate
Either I am experiencing Déjà vu or this is the same upload as the one from one month ago Tone?
It must be deja vu mate....ruclips.net/video/KEnz7Um0xjg/видео.html
Tony in one of your video's in December last year you recommend if anybody wanted to have a battery pack rebuilt to contact Mr Steve D. I did so using the link from the video in December l sent him a Snap-on 7.2v 6x AAA
I have been promised it back several times but it has not arrived now he's not answering WhatsApp messages or my phone calls can you help in this matter thanks Paul..
Yes mate, he's having a few problems with the world as it is as the moment. Ordering parts which usually take 2-3 weeks, are taking 2-3 months.
I did email him last week and he said "I'm trying to get orders out as quickly as I can.... I am getting orders out but still not getting any BMS through and the last straw was an order that I placed on Feb 2nd got cancelled on 17th march. I want to make sure that you know I am not disappearing on anyone and those that are awaiting packs will get them... ".
Hang in there, he will have ordered your parts but it's taking much much longer for the bits to arrive (something that none of us could have predicted).
So it was YOU going round the super market with your crash helmet on? lol.
stay safe Tony in these difficult time all the best.
I saw an OAP in (what looked like) a full hazmat suit the other day......the world's gone mad mate. I'm sure a nuclear fallout would have looked more aceptable.
Not sure if you seen my last comment but I would like to chat with you over email or something regarding a build I'm wanting to do regards matt
Hi Matt, drop me an email - vortecks2000@gmail.com and I'll see what I can do. Time is somewhat limited at the moment so it'll take me a while to reply.
Tony
The Software works not for LTO Cells.
I wish it had an adult data output like SPI or I2C or something like that. Bluetooth is just childish...
أريد رابط البرنامج
Good video mate 👍👍👍👍👍👍👍
Interesting Tony. See the thumb is still black
The thumb black bit is starting to break through now, so it's a matter of time before it breaks off......bloody reciprocating saws are dangerous and Tony shouldn't be allowed to use them 😂
👍
I never saw that type of BMS. LOL
Ant bms endorsed vid
16 hours... My cells are enormous compared to these... It'll take months to balance one of my packs, and I have 40...
Good, but you don't need to use foul language like "sh_t" or "f" word. Would parents like their children talking like this?
Wife watching rubbish and you suddenly appeared. Peace for her for ten mins as I will not need to tell her what a bunch of wankers work on daytime tv
🤣🤣🤣
Mandanese? 🤣 Madarine or Cantonese.😎
Language!!! Man!!!
No way I would trust that after it crashed. Shame.
Yeah, same here mate.