DavidKelly's latest activity

May I ask, what do you mean by 'Convergent balancing'?

The document is from the manufacturer of the cell. It’s quite clear on procedure. Full charge as per datasheet and then discharge in...

This is from the SOC OCV charge curve from EVE for the LF230. I shared it on this thread as well as an excel that helps with...

May not be fully charged but should be 95+% and work just fine. 13.8 would be slightly better but there is no reason to go to the max...

I don't have proof and couldn't care less but it feels right to me (3v min, 3.5v max cutoff). I'm not flogging the shit out of my batteries.

As someone with an advanced technical degree, you understand this very basic requirement: You've made a claim. Now you must provide...

If you ask me, leave it disabled. You're not running lab tests, you're using a production system. Stay within 3.0V and 3.5V per cell...

Unless you charge the cells into their voltage knee you will not know if they are at the same SOC. There is no issue charging the...

I’ve seen the target voltage for “full” cells fall from 3.65 to as little as 3.35 for some commercial BMS’ over the decade i’ve been...

Does anybody wonder why UL1973 & UL9540A certified battery manufacturers are deliberately holding cells at > 3.45V all day, claiming...

Breaking news: you are all charging the wrong way. ;-) Sensationalism aside, some things have changed in the newest datasheet for EVE...

Ple Please visit Andy's Youtube channel at offgridgarage in Australia. He has uploaded dozens of very well done tests on the charge and...

Yep - and by the way, context matters. If this thread would have been titled "Ideal charge parameters discussion for a LFP battery" or...

Agreed. The charge methods that you and other senior members advocate here are totally fine. I have no doubt that people who follow your...

This is like listening to a race car driver talk to a commuter. Most of us don't have race cars for batteries, nor do we need that type...

You (and others as well) should read up on "Systems Thinking" (recommended book: Thinking in Systems, by Donella H. Meadows). As a user...

@BjornM I agree with @upnorthandpersonal. This member has multiple posts where their the smartest person in the room. My age tells me...

To add, it basically boils down to: this is a DIY forum with people building their own batteries, with all kinds of skill level. Is it...

You don't need 100% state of charge - 95 or something percent is perfectly fine. For solar applications, you don't reach high charge...

You could zip up your excel file, which would allow you to upload. You could also drop your info here...