Oh, I dug the specs out on the cheapo one, it will not start balancing until it detected 100mV difference from cell to cell and then it will continue to balance until they are within 30mV.
I owe you a nipple twist and a reach around. Thank you! Virtually no one that I've come across has differentiated the a BMS and an active balancer. Jolly good.
Would be useful to measure the current passing between cells. Will Prowse reckons they're useless. Will be interesting to hear your final opinion. Also thought a good BMS balanced the cells as standard.
For me, the current is irrelevant because these are left running all the time. A BMS is different to an active balancer because the active balancer passes current to the lower voltage cells - a BMS simply discharges the higher voltage cells down to the same as the lowest voltage cell, whereby reducing efficiency.
Nice to know that even the super cheap ones work. I saw some slightly more expensive but what seems to be better version of this for 50$~, they have multiple solid state capacitors on them and apparently have a ballance current of up to 5 amps.
The trouble is, 5A is a bit high for balancing - the lower voltage cell(s) will potentially be charging at 5A which is way too high. With 18650/26650 cells, the max is 2A so these cheap ones will do the trick perfectly.
mashed potatoes I’ve a 18p pack and the larger capacity balancer works super. Also ran them on a pack 10s 13p with shorted cells and they hold the pack together. If your pack is with perfect balance from equal cell internal resistance won’t see much difference.
I have found the cheaper one to be much better, They are basic and only work on the voltage of the next cell. Also, It is recommended by many admins on ES after much testing. I have 2 13s ones on a 24s 27p 6.5 kWh pack, (overlapping) Used alongside a Dale BMS
ha, very hit or miss with this stuff. I got a 13s 'waterproof BMS' for my battery build and im pretty sure its a dud. It being 'waterproof' means they caked on so much rubber/silicon onto the PCB i cant get it off to take a looksie without ruining it $40 aliexpress bms in the bin, where was the link to the BMS your friend resells?
Hi Tony, Is it important to keep all the leads the same length so they all have the same volt drop. Nice video, I have some coming from China, I think I will disinfect the package just encase its infected :-(. Cheers Dave.
With the current we're using (less than 1A) it's not important. The current drops off toward the end so the voltage drop will be virtually none existent.
Play the game Tony, if your writing was a little smaller I would have to find my magnifying glass to see your list. Now I don't know where it is lol. Hope you get the second one sorted with the seller. Good luck
It was for my reference and I was using 3 x magnification glasses. My scientific approach has stunned the world over and everyone is still in awe at how I go about things. Rest assured in the knowledge that, most of the time, I haven't got a clue what I'm doing. I'll try to improve next time by wearing 2 x magnification glasses - that should make the writing bigger mate 😁 Oh..... the seller gave me a refund so I'm trying to repair the knackered one and I've also ordered a new one from China (which will probably take 2 months to arrive if I'm lucky).
If they're the 'claimed' 1.4A balance current, 2 in parallel would make it 2.8A. With a single cell pack like mine, that wouldn't be good but, with a bigger pack, yeah 😀
You can, yes. That is the setup I run with my solar power rig. Although if it is going to be operating in high heat, you will want to turn down the balance current to something more like .7 - .8 amps. Edit And if you are using recycled batteries, that is pretty much the best way to do it, it solves so many problems.
You said App Store. That means you must have Apple Crapple. Many things are not compatible with Apple Crapple. So probably the application is for real devices.
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Oh, I dug the specs out on the cheapo one, it will not start balancing until it detected 100mV difference from cell to cell and then it will continue to balance until they are within 30mV.
Cheers mate, I didn't know that! 😁
I owe you a nipple twist and a reach around. Thank you! Virtually no one that I've come across has differentiated the a BMS and an active balancer. Jolly good.
My job is done..... I aim to tech something in every video 😁
Please excuse my pig, he's a friend! 8:22
Would be useful to measure the current passing between cells. Will Prowse reckons they're useless. Will be interesting to hear your final opinion. Also thought a good BMS balanced the cells as standard.
For me, the current is irrelevant because these are left running all the time. A BMS is different to an active balancer because the active balancer passes current to the lower voltage cells - a BMS simply discharges the higher voltage cells down to the same as the lowest voltage cell, whereby reducing efficiency.
@@Vortecks Interesting. Love your vids, BTW, waiting for the next. Long time subbed.
Nice to know that even the super cheap ones work. I saw some slightly more expensive but what seems to be better version of this for 50$~, they have multiple solid state capacitors on them and apparently have a ballance current of up to 5 amps.
The trouble is, 5A is a bit high for balancing - the lower voltage cell(s) will potentially be charging at 5A which is way too high. With 18650/26650 cells, the max is 2A so these cheap ones will do the trick perfectly.
@@Vortecks not for bigger battery packs, I have a 16s12p battery for my electric scooter and I'm thinking that one would work better
mashed potatoes I’ve a 18p pack and the larger capacity balancer works super. Also ran them on a pack 10s 13p with shorted cells and they hold the pack together. If your pack is with perfect balance from equal cell internal resistance won’t see much difference.
subbed
finally, an adult with a clue
all the famous channels are completely head-up-ass on this topic
thanks
Great video again Tony Keep it up dude
I have found the cheaper one to be much better, They are basic and only work on the voltage of the next cell. Also, It is recommended by many admins on ES after much testing. I have 2 13s ones on a 24s 27p 6.5 kWh pack, (overlapping) Used alongside a Dale BMS
I was wondering how well these perform in series - are they working well?
As per the norm....bloody interesting. Learning all the time from you Tony.
Cheers mate 😁
ha, very hit or miss with this stuff. I got a 13s 'waterproof BMS' for my battery build and im pretty sure its a dud. It being 'waterproof' means they caked on so much rubber/silicon onto the PCB i cant get it off to take a looksie without ruining it
$40 aliexpress bms in the bin, where was the link to the BMS your friend resells?
You mean this one? goo.gl/XyREKM
Hi Tony,
Is it important to keep all the leads the same length so they all have the same volt drop. Nice video, I have some coming from China, I think I will disinfect the package just encase its infected :-(.
Cheers Dave.
With the current we're using (less than 1A) it's not important. The current drops off toward the end so the voltage drop will be virtually none existent.
Play the game Tony, if your writing was a little smaller I would have to find my magnifying glass to see your list. Now I don't know where it is lol. Hope you get the second one sorted with the seller. Good luck
He'd make a good doctor.
It was for my reference and I was using 3 x magnification glasses. My scientific approach has stunned the world over and everyone is still in awe at how I go about things. Rest assured in the knowledge that, most of the time, I haven't got a clue what I'm doing. I'll try to improve next time by wearing 2 x magnification glasses - that should make the writing bigger mate 😁
Oh..... the seller gave me a refund so I'm trying to repair the knackered one and I've also ordered a new one from China (which will probably take 2 months to arrive if I'm lucky).
Hi, can we charge at the same time battery connected to balancer?
That cheap one ever try two, or more in parallel if the pack Ah, were larger? As ever excellent video.
If they're the 'claimed' 1.4A balance current, 2 in parallel would make it 2.8A. With a single cell pack like mine, that wouldn't be good but, with a bigger pack, yeah 😀
Which brand 26650 cells are good to build a 72v 20ah battery pack with decent power? You sound like you're really enjoying this test lol.
Liitokala
Yes, Liitokala - it's all I buy. Make sure they're conditioned first, though.
I'm sure I've seen this video before oh wait that because I'm a patreon come on people help tony out
Like you I am a Patreon supporter of Tony's
.....and I appreciate you all 😁
well tony boy that's 15 mins of our lives we'll never see again loll
hookybit thanks for the warning x2 speed enabled 🙂
@@paulollerhead941 the old duffer knows we love him really lol
Can i install this balancer with the bms in the same time in my bicycle battery pack ??
You can, yes. That is the setup I run with my solar power rig. Although if it is going to be operating in high heat, you will want to turn down the balance current to something more like .7 - .8 amps.
Edit
And if you are using recycled batteries, that is pretty much the best way to do it, it solves so many problems.
You're still getting a voltage difference between cells of 0.244
I thought this was going to be about tightrope walking...
👍👍👍👍👍👍👍👍👍👍👍
So don't buy expensive, buy cheap 4 times over 🤣
I have a replacement coming from China. I think it was the reviewers curse - it always happens to me (even if I did buy it).
You said App Store. That means you must have Apple Crapple. Many things are not compatible with Apple Crapple. So probably the application is for real devices.
👍
Does the el cheapo have a sense out for over discharge protection?
Nope, it simply balances the cells but in a far more efficient way. You'd have to fit a BMS for voltage cut-off.
Must be in some kind of chinese app store
tony do you have a contact email I have a lead on some excellent cells for your next version??
Yes mate...... vortecks2000@gmail.com
lol great vid
🤣🤣🤣 fffff🔊🔊 and 😪
7.59 and 8.18
Its a zero.