After the top balance....

[On_The_Road]

Finally finished up top charging and then top balancing 8 280AH cells from the 18650 Battery Store. Top balanced to 3.65V and took them off of the charger last night. I was surprised to see them at 3.605 this morning. I would have expected them to drop more? They are still in 8P.

It's going to be a few days before I can get them in the RV. Should I leave them in 8P in the meantime?

Thanks...this forum and the FAQ on how to top balance has been fantastic.

 

[John Frum]

Finally finished up top charging and then top balancing 8 280AH cells from the 18650 Battery Store. Top balanced to 3.65V and took them off of the charger last night. I was surprised to see them at 3.605 this morning. I would have expected them to drop more? They are still in 8P.

It's going to be a few days before I can get them in the RV. Should I leave them in 8P in the meantime?

Disconnect them so that you can see the any differences in self dischage.

Q: What is top charging and how is it different than top balancing?

 

[740GLE]

Should settle down to 3.45-3.5v.

That’s why many people set a low charging voltage for their pack, no need to try and push >3.5v unless you’re trying to balance them.

 

[On_The_Road]

Slowly dropping 3.953 now.

 

[Pierre]

Slowly dropping 3.953 now.

?

 

[On_The_Road]

3.593....opps.

 

[On_The_Road]

Got delayed a few days. About to put these into service.

One cell has a bit of a deviation from the rest. Any cause for concern?

3.540
3.547
3.547
3.543
3.544
3.548
3.545
3.544