"...if you don't like my reviews, you are more than welcome to start your own channel..." Booooom 😂😂😂😂😂! Well said!!! Been following for some time now to know your are as unbiased, and as polite as one can be. Learned a lot from your channel throughout the years. Thanks for your work!
Good testing throughout. Ignore the keyboard warrior, "internet experts" that probably don't own a battery. The method of testing you use, is generally the information we seek. Cheers!
Im sure this is because the cells can hold more energy when they are being used. That means, if they sit around not doing anythign for a while, they will record a lower capacity result. Thats why we get people to do 2 cycles before testing the capacity tests. Especially after delivery, which from china might take 2 months.
My nickel zinc battery show sag (voltage drop down) in their first discharge after some time storage at 35 degree centigrade, while in second discharge it’s fine, what’s could be the possible reason?
Additionally I did some research about the ongoing issues, I found that there is gas generation on positive electrode but hard to find suitable solutions to tackle it, will appreciate your feedback
Hello sir, I wonder if you can guide me with something, I built a 20S lifepo4 battery, I installed a daly 120A bms, top balanced the cells before putting everything together etc, I bought a charger capable of charge to 73v 60 amps, after discharging the battery for first time was good to recharge again, but now bms is like disconnecting and the battery is not fully charged, I have the settings to 3.6v cutoff: 2.5v 72v and 50 for cutoff, balancing I have to 3.2v, I wonder what am I doing wrong? do I need to top balance again? is recommeded to install an active balancing for the cells? sorry for bothering, any help will be appreciate it, I am trying to learn watching youtube videos and reading.
This is super helpful, I'm just about to start finalising my plans on installing the batteries in my boat. I'm thinking of installing them on the side, and I was actually wondering if it would impact usable capacity. Thanks!!
My concern with the cells being on their sides is mostly the possibility of electrolyte leaking from a compromised vent or terminal seal. That stuff is rather toxic to breathe.
@@LithiumSolar That's a very fair concern... I spent a while wondering if I should have a containment box with venting in case of leakage. I decided that yes, I do. As unlikely as it is for these LFP cells to leak, if they do, you want that electrolyte contained and that gas sent overboard!
Z orientation being stacked vertically? Hotly debated. It's said vertical stacking is a no-no due the combined, compressive weight on the bottom two cells in the stack. Without some kind of divider separating the upper from the lower, supposedly damage can occur by not allowing the lower cells cases to naturally expand.
Interesting comment from Rod Collins (Marine How To website) who's been a real pioneer of objectively testing LiFePO4's. He's observed that often a battery which has been sitting for some time e.g. on float, tests poorly on the first test and the second will be a more accurate measure of capacity.
Ha, yeah I don't think any of these Al-cased cells can be used upside down. Either way, just comparing to the orientation for which the cells were originally installed in the plastic case :)
Orient them on the Long Side (ie, stacked one on top of the other) instead of the Short Side. This way, only fewer plate will be submerged in electrolytes
Hey there, Have you seen any strange behavior of the Cells charge voltage curve? (Maybe you have some kind of logging active?) Andy from OGG has recently found out some strange behavior on some cells...maybe this is similar? Could't it be eater the "issue" that brand new cells without some initial cycles in Upright orientation can't release the gas bubbles from the electrolyte? The bubbles can't escape the electrolyte because the separator is above them. In Theory: After you cycled the cells n the Upright position, the bubbles escaped and the cells now have their final available capacity. But that's just a rough guess Greetings
great comment at ending ... go buy a battery ... make your own video ... and show me how I am wrong ... instead of being a little bytche ... okay ... I paraphrased
“Make your own video” is a narcissistic response. The appropriate answer is “Thanks, I’ll take your comment under consideration” and move on. You didn’t respond to the cell orientation comment with a “make your own video” comment.
I appreciate all constructive feedback. The problem is I get tired of reading the non-constructive comments often with the tone of them being orders rather than feedbacks.
WEIZE Battery... www.weizeus.com/collections/48v-lifepo4-series/products/weize-48v-100ah-lifepo4-lithium-battery-built-in-100a-smart-bms?ref=lithium_solar
(affiliate links)
That's a great idea for a test! Thanks for sharing!
Your tests are the best on the internet.
Keep doing your videos how you like them. It doesn't matter what other people say.
Glad to see the test results. Great video and very thorough. Have a great day.
"...if you don't like my reviews, you are more than welcome to start your own channel..."
Booooom 😂😂😂😂😂!
Well said!!!
Been following for some time now to know your are as unbiased, and as polite as one can be.
Learned a lot from your channel throughout the years. Thanks for your work!
Good testing throughout. Ignore the keyboard warrior, "internet experts" that probably don't own a battery. The method of testing you use, is generally the information we seek. Cheers!
As a non battery owner who watches out of interest in the subject matter I endorse @thebuckeydan's message! Ignore our opinions, you are doing great!
Im sure this is because the cells can hold more energy when they are being used.
That means, if they sit around not doing anythign for a while, they will record a lower capacity result. Thats why we get people to do 2 cycles before testing the capacity tests.
Especially after delivery, which from china might take 2 months.
My nickel zinc battery show sag (voltage drop down) in their first discharge after some time storage at 35 degree centigrade, while in second discharge it’s fine, what’s could be the possible reason?
Additionally I did some research about the ongoing issues, I found that there is gas generation on positive electrode but hard to find suitable solutions to tackle it, will appreciate your feedback
Hello sir, I wonder if you can guide me with something, I built a 20S lifepo4 battery, I installed a daly 120A bms, top balanced the cells before putting everything together etc, I bought a charger capable of charge to 73v 60 amps, after discharging the battery for first time was good to recharge again, but now bms is like disconnecting and the battery is not fully charged, I have the settings to 3.6v cutoff: 2.5v 72v and 50 for cutoff, balancing I have to 3.2v, I wonder what am I doing wrong? do I need to top balance again? is recommeded to install an active balancing for the cells? sorry for bothering, any help will be appreciate it, I am trying to learn watching youtube videos and reading.
I like your tests and reviews so I am definitely not going to start my own channel and make reviews. André in Sydney
This is super helpful, I'm just about to start finalising my plans on installing the batteries in my boat. I'm thinking of installing them on the side, and I was actually wondering if it would impact usable capacity. Thanks!!
My concern with the cells being on their sides is mostly the possibility of electrolyte leaking from a compromised vent or terminal seal. That stuff is rather toxic to breathe.
@@LithiumSolar That's a very fair concern... I spent a while wondering if I should have a containment box with venting in case of leakage. I decided that yes, I do. As unlikely as it is for these LFP cells to leak, if they do, you want that electrolyte contained and that gas sent overboard!
Great job 👍
Thanks for doing this video. That's 2 out of the three possible orientations, X and Y are done, but not quite there yet just Z remaining....
Z orientation being stacked vertically? Hotly debated. It's said vertical stacking is a no-no due the combined, compressive weight on the bottom two cells in the stack. Without some kind of divider separating the upper from the lower, supposedly damage can occur by not allowing the lower cells cases to naturally expand.
Thumbs up 👍 good test ✅ thanks for the follow up 😎
Keep up the good work!
I think they'd need to be in a certain orientation for months for gravity to do its thing and move the electrolyte
That thought had crossed my mind; however, it surely would have experienced all orientations during shipping/transit...
Like your vids
Keep up the great job your doing !!!
Well said.
Interesting comment from Rod Collins (Marine How To website) who's been a real pioneer of objectively testing LiFePO4's. He's observed that often a battery which has been sitting for some time e.g. on float, tests poorly on the first test and the second will be a more accurate measure of capacity.
But what about upside down and inside out? lol just kidding good review and info as always
Ha, yeah I don't think any of these Al-cased cells can be used upside down. Either way, just comparing to the orientation for which the cells were originally installed in the plastic case :)
Good testing, I was also thinking sideways.. affected my test on a particular cell, I was reviewing. But seems orientation does not matter
Very cool.
Orient them on the Long Side (ie, stacked one on top of the other) instead of the Short Side.
This way, only fewer plate will be submerged in electrolytes
Thanks, ...
COOP
...
Hey there, Have you seen any strange behavior of the Cells charge voltage curve? (Maybe you have some kind of logging active?) Andy from OGG has recently found out some strange behavior on some cells...maybe this is similar?
Could't it be eater the "issue" that brand new cells without some initial cycles in Upright orientation can't release the gas bubbles from the electrolyte?
The bubbles can't escape the electrolyte because the separator is above them.
In Theory: After you cycled the cells n the Upright position, the bubbles escaped and the cells now have their final available capacity.
But that's just a rough guess
Greetings
Nice
great comment at ending ... go buy a battery ... make your own video ... and show me how I am wrong ... instead of being a little bytche ... okay ... I paraphrased
“Make your own video” is a narcissistic response. The appropriate answer is “Thanks, I’ll take your comment under consideration” and move on. You didn’t respond to the cell orientation comment with a “make your own video” comment.
I appreciate all constructive feedback. The problem is I get tired of reading the non-constructive comments often with the tone of them being orders rather than feedbacks.
DONT GET YOUR PANTIES BUNCHED UP!
TY !! Awesome info !!