jharrell: [side note: I suggest that the charger you are referring to is the 80/90/100% SoC, 1-5A charge rate unit from Luna Cycles; certainly I have seen a video showing how to adjust the pots. in it. The stock charger from JB is a sealed unit - the only way to access the internals is to destroy the case]Yes its probably coincidence, again the battery on the charge and discharge port read the same and it is the expected voltage at 100% SOC. Whats more likely the battery is only 93% charged based on the screen voltage or a 100% based on a multimeter reading? Why would you go through the trouble of putting some kind of boost converter (on both charge and discharge mind you) in the BMS and have the screen calibrated to show 1 volt less??? Just change the voltage adjustment in the shipped charger and and have accurate voltage readings throughout?
Honestly I'm not even sure you could integrate a boost converter in such a way to fool a charger if the battery was connected, you would have to pull current from the battery to boost voltage then feed it back and the battery would just eat it up again, even if some circuit could be designed why all that expense and complexity, just drop the trim on the charger if you want under 100%, I think there is even a video around showing which pot to turn inside the stock charger to tweak it.
I don't believe in coincidences. And, one of many valuable lessons I learnt as an ICT manager/director and corporate network designer and project/program manager, thence consultant is that "...all vendors always lie" even though their (usually frontline) staff don't realize that they are promulgating such lies. And, in some of the more bizarre cases, unnecessarily so.
Back to Friar William of Ockham and his infamous but useful razor. From you and other individuals - more learned in matters electrics than me - I hear about such as leaky MOSFETS, failing capacitors, and faulty/badly installed pass diodes to prevent such as "...charging via the discharge port"; all technically feasible I am sure but, I, a simple lad who values Occam's (so many spellings) guidance to consider the simplest and most obvious - and to trust what I can measure and replicate - is as I have presented too many times in this forum. And, notably, over far too many months of emails and other missives to JB who have, throughout, resolutely refused to give me a straight answer to my concerns and questions - I wonder why?
I suspect that JB has, from their perspective(s), valid reasons for ensuring the pack can only be charged to 93-95% SoC. What they do not note in their product specifications and other marketing literature is that charging limit: informed buyers? I think not. And, strange that the JB's booster club and apologists on this forum have little to say but buy a Satiator and all will be well (buying a $330 unit to reach the same 93% SoC that the standard charger achieves make no sense); nor will any educate one how to achieve 100% SoC - I do wonder why?)
In order to bring a close to this I will withdraw to lick my wounds and cogitate awhile on why JB's and others' lack of straight, simple and logical inputs/answers. That is, I will do a Brain Dump on what JB's possible reasons/fears might be and as indirectly posited by others having troubles with JB products and lack of quality support elsewhere in this forum.
Until later, post cogitation