I've been using a generic balance checker for quite a long time but recently, the readings made me question whether or not it was accurate. Guess what???
Пікірлер: 52
@RMINCFilmProductions4 жыл бұрын
One thing to keep in mind is the stated accuracy of the BG-8S is ± 0.005V @4.2V. You may get a better accuracy with fully charged pack (or a more representative experiment). Food for thought, the resolution of the battery checker may not be comparable to the volt meter, or the other 'known' measurement. Regardless, that was a great experiment and very educational when revealing the accuracy of the devices for a LiPo at storage voltages. Maybe give it a try when the packs are charged. I'm, willing to bet that the total overall error will be lower. (lower total standard deviation)
@RCVideoReviews3 жыл бұрын
All valid points. In the end, none of this is lab gear. I'm a little persistent, so from time to time I take measurements and try to halve the errors I see. You got the main point and that's to take a look and not take things at face value.
@mikeh3787 Жыл бұрын
Excellent review on the 2 chargers. I was looking at both of them.
@RCVideoReviews Жыл бұрын
Glad I could help
@MrZeek1014 жыл бұрын
I just bought the Spektrum RC XBC100 SMART Battery Checker & Servo Driver It's amazing how far out some batteries are out great review Sir
@RCVideoReviews4 жыл бұрын
That was one of the other checkers I considered. Let me know how you like it ok? Glad you liked the video. I have a lot more material coming.
@luigibellantoni68283 жыл бұрын
The beauty of the isdt checker is you can calibration to it inside the menu. Plus it tells you the average if how far out of balance the pack is. Great device 👍
@RCVideoReviews3 жыл бұрын
I agree. I keep mine handy all the time.
@offgridwanabe4 жыл бұрын
The margi of error or accuracy at that voltage is not where the tool is designed to work. The accuracy changes when you approach the top voltage and that is where most balancing occurs as it should. Just my opinion.
@RCVideoReviews4 жыл бұрын
Where do you get this information? Once calibrated it should read voltage correctly, so I'm curious to know why you're saying it is not designed to accurately measure voltages well within expected voltage ranges for the application.
@offgridwanabe4 жыл бұрын
@@RCVideoReviews I'm only going by knowledge observed from countless machines that I have had which measure voltage and charge batteries. ie solar charge controllers, balancers, and BMS they all seem to have a range for their margin of error and I usually pick the full charge voltage to adjust as that is the one that is most critical to me. Also if you did not know apparently the Bg8 has a voltage configuration in the system information so you can adjust it to your expensive volt meter.
@RCVideoReviews4 жыл бұрын
That little black device is solid state, no adjustments that I'm aware of. I would expect a purpose built solid state device to operate accurately between 3.0 and 4.25v. I have seen a large number of those little LiPo alarms be way way out though, which is why I trust but verify. I have seen the ISDT calibration on their chargers, I haven't spotted it on the battery meter. I'll go back and look for that. Thanks for the tip.
@offgridwanabe4 жыл бұрын
@@RCVideoReviews I haven't tried this yet but think there is new firmware for it. Here is a link showing how he configured it kzfaq.info/get/bejne/ocePq5l_yM-slWg.html
@RCVideoReviews4 жыл бұрын
OffGrid Wanabe yup that’s the same method for their chargers. I’ll have to go back and look to see if it’s far off enough to worry about it. Either way I’m tempted to make a video showing that technique without the overwhelming music. Thanks for sharing.
@loganreuter60724 жыл бұрын
man I should probably check if the 3 batteries I own are balanced :(. Great video anyway!
@@RCVideoReviews yeah I've never check them before and some of them are almost 2 years old
@RCVideoReviews4 жыл бұрын
@@loganreuter6072 Oooph....Do you have a cell checker? Voltmeter? Does your charger show you per cell voltages? It's a good idea to babysit balance on LiPo cells.
@loganreuter60724 жыл бұрын
@@RCVideoReviews no I don't have a cell. I have a multimeter. My batteries are pretty much at the end of their life, I would say at least 250-300 cycles on each. I just got some money so I'm probably going to get some new batteries anyway and probably a cell checker.
@RCVideoReviews4 жыл бұрын
@@loganreuter6072 I used the generic balance checker for years. Amazon has them for under $10. Do you have a voltmeter?
@radvalve2054 жыл бұрын
Lol, think i would rather use the time to just fly!
@RCVideoReviews4 жыл бұрын
Me too.
@RREKO3 жыл бұрын
Hi my Friend good vídeo, I started with that same Balancer... and now I bought M8 from ToolKitRC and it let's us calibrate, the individual voltage on every series... I think the ISDT also allows you to do that, but when I began the Cellmeter 7 and 8 where very good for me to check my Batteries. ⚡🔋⚡
@RCVideoReviews3 жыл бұрын
I love the M8. I did a video on that one just a short while back: kzfaq.info/get/bejne/qsiYhLVj29q0qp8.html Thanks for the comment.
@RREKO3 жыл бұрын
@@RCVideoReviews me too my friend, ir as been very useful to charge my E-Scooter 36V Battery, I had to do to 5S6P to balance charge, because for it is a 10S... before I only had the ImaxB6 that only works until 6S...
@w.j.bendellr.c.flying.10373 жыл бұрын
That unit will also balance out your batteries for you.🤔😉
@RCVideoReviews3 жыл бұрын
It does. Very slow though.
@chrisscotty45182 жыл бұрын
Do you know if the alarm for low voltage for example 3,85 for storage works with only the balancer cable? I want to external discharge with the hota f6 and resistors and set an alarm fore storage...
@RCVideoReviews2 жыл бұрын
Yes, only the balance leads as far as I know.
@koalatails63914 жыл бұрын
I’m surprised how accurate the generic cell checker is, even your worst example here was less than a 0.5% discrepancy. Is an imbalance of 0.02volts really a concern? I have a decent battery charger & would expect it to balance those cells without a problem. I have watched my charger rebalance a battery that was far worse. The only reason I charged that battery was to make it more stable & less likely to spontaneously combust, so I storage charged it.
@RCVideoReviews4 жыл бұрын
I was surprised at the generic too, but the problem is the combined delta from negative to positive. In this case, one cell measured high, the other low and the gap is the problem. That's what got me turned on to this question in the first place. 3.80, 3.80, 3.84 4/100ths is not "alarming", but that's just one example. I've seen readings a full .15 off cell to cell.
@RCVideoReviews4 жыл бұрын
Oh, and a balance charger will have no problem with that .04 for a single pack. For parallel charging: .04 down on one, .05 up on another and suddenly you’re connecting packs in parallel with cell discrepancies > .1v and I do not like that.
@koalatails63914 жыл бұрын
I agree, that it would be a concern when parallel charging, I don’t parallel charge, it feels like additional risk of not properly charging each battery. I haven’t been in the hobby a long time, so I’m cautious when dealing with lipos.
@fastgunfife66904 жыл бұрын
Very good information
@RCVideoReviews4 жыл бұрын
Thanks Phillip. Appreciate your feedback and glad you found the information helpful.
@scottintexas Жыл бұрын
How does the ISDT compare with the toolkitRC MC8?
@RCVideoReviews Жыл бұрын
Dupe. Replied elsewhere.
@chrisscotty45182 жыл бұрын
Can the isdt messure internal resistance of the cells?
@RCVideoReviews2 жыл бұрын
No.
@MrJames68913 жыл бұрын
I thought the battgo could charge devices via the usb...
@RCVideoReviews3 жыл бұрын
It does. It'll charge an iPhone 11 at 1a. Nothing to write home about and I'd probably reach for a dozen other devices before this one to charge my phone.
@MrJames68913 жыл бұрын
@@RCVideoReviews thanks! Figured mine out. I can charge through usb outlet, however, power has to be supplied from large plug not balance leads
@RCVideoReviews3 жыл бұрын
@@MrJames6891 Ahhh, good deal.
@Ziplock90004 жыл бұрын
You don't even get to the BG-8S until 2/3 of the way through the video and then don't even review it!??
@RCVideoReviews4 жыл бұрын
There was no intention of being misleading John. The underlying intention of the video and as titled in the thumbnail is to question whether or not a "balanced" pack is actually balanced. Hence the measurements starting on the iCharger, the multimeter, the generic checker, and finally the ISDT. My objective was more to examine "balanced" packs and to show it takes verification with reliable tools before trusting off the shelf measurement devices. In this case, that warning is warranted. To help videos get discovered by people searching for information, it helps to use keywords a searcher might use. To address your concern, I've removed the "review" term from the title.
@Ziplock90004 жыл бұрын
@@RCVideoReviews I'm sure nothing deliberately misleading was intended, but as you've identified if the word "review" is in the title, then a review is expected. Thanks.
@RCVideoReviews4 жыл бұрын
Given the cell by cell comparison of the ISDT against a multimeter, charger, and generic checker I felt I had provided a review of the function used for 99% of my use cases for such a device. In other words the overwhelming usage of this device for me is to check per cell voltage. The video shows the accuracy of the device in that capacity.