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Do you think that this kind of balancer can be usefull during the charge and can be a better balancer than the one included into the BMS ? Does it make sens (and isn't it "dangourous") to connect both BMS and balancer ...

I disassembled the pack and connected each cell in parallel with the busbars. Balance was very fast, less than 5 min.

No comment ?

As a kind reminder, I'm French so sorry for my poor English! Here is an update of the situation. The pack is part of an off grid system and I'm no more on site. I can now only set parameters remotely, using a 4G modem and a Bluetooth connection on a mobile with teamviewer host. Initial...

Thanks! After 2 days of cloudy weather, sun is back! I now face a slight issue and I need your advice. Balance of each single cell is perfect (less than 0.02V) as long as my Victron charger is in bulk mode. But when it switches into absorption mode, 2 cells become unbalanced, something like...

And what about the part of the bms plays all along the charge /discharge process?

I did both. After the bottom balance, I fully charged (solar so not so quick). It took 2 days and half. Balance has been done thanks to my bms all along the charge process. I guess I can consider it as a top balance since voltage is 27V and difference of tension is 0.004V!

You're right. I did it one time to do a bottom balance. Now, BMS is set to protect below 2.5V.

Just to keep you informed. I discharged the cells. The 8 cells were really unbalanced from 2.18 to 3.0. I did a bottom balance and every single cell reaches 2.85V. Then, I connected my Daly smart bms and start to charge my pack thanks to my solar charger (Victron mppt smartsolar charger). Not...

Thanks a lot ?

Hi! I received my 8 LiFePo4 cells 202Ah and I found a surprising information into the data sheet. The discharge end voltage is 2.0V meaning that the limit for my 24V battery is 16V!! I think my understanding is wrong. Could you explain to me? Many thanks in advance.

??

Not sure about the subtility... (sorry, I'm French! ?). You mean that this is not mandatory but better to balance? My bms is a Daly 18650 smart LiFePo4 8S 24V 100A with separate port. I also have a balancer (https://a.aliexpress.com/_B0dx8j)

Hi everyone! I just receive my 8 lishen 3.2V 200Ah cells from China. Values are : 3.282, 3.278, 3.280, 3.275, 3.194, 3.195, 3.197 and 3.194. I also have a Daly bms with separate port and a balancer. This is my first battery project and I'm looking for advices... ? Do I need to balance...

Thanks for your comment. I finally assemble by myself. More reasonnable. 8 cells, 200 Ah, Lishen brand new. Looks good for USD 938 DDP. Just need to add a good BMS.

Hi everyone. First post on this forum. I'm French so, sport if my English is not perfect ! ;) I'm concidering buy this kind of powerwall for an off grid system and my biggest concern is the weight since I will carry it alone... I have to load it in a car then transfert it to my caban ! Of...