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Capacity cutoff vs. SOH cutoff
#11
(06-15-2019, 08:36 PM)100kwh-hunter Wrote: With the tp or tc's they run on sort of a program.
When you think they are done they are not.

Let them sit some longer, they want to finish there charge to get from ~4.15 to ~4.20

Have you verified that in any way? I have genuine TPs, and when the light changes colors, they are done. I use the USB input and have verified with a Charger Doctor that when the light changes colors, they no longer draw any current. The most reasonable explanation for the voltage differences is that each TP terminates at a different voltage. Mine range from 4.12V to 4
21V.
Formerly known as Dallski
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#12
I think this is the painful spot, i don't have the genuine tp.
I noticed with mine tc's (22 of them in use) and with the look a like tp's (8 of them in use), that they change the first time from red to blue, that the cells aren't completely full yet, that they wait 5 to 20 minutes and charge a little again, so the LED change color again.
If i take them out and put them back in they think the cell is done, and nothing is happening.
This is why i think they are on some sort of program.

Furthermore, i bought a total of 45 tc's (i thought they where the tp's) the last 10 where tp4056b.
But with every tc/tp i tested with a single testing cell to see the end volt, to make sure they stop at 4.2 and not before

The zb's i tested on volt to see if they where all the same....its a different chapter.

To get good and consistent results you need a good power supply.
If you're power supply is capable of 5 amps at 5 volt you can do 4 tc/tp, if you're psu can give 5 amps at 6v you can do 5 of them.
For the zb, you will have enough of 1 amp to make 40 zb's go to work.

My psu is 30amp at 6v, if i charge more then 35, some of the tc's stop charging, and lower the charge.
One section on my board is only connected to one psu with 30 tc/tp.

I hope my two cents, this answers you're question?
Best

Supplemental:
I noticed the "finishing" charge, the first time, when i "forgot" them.
Sinds then i give them way more time, and payed more attention, the results were getting better.
Still learning English. Learning Li ion and solar technology.
+/- 3500 Li ion cells harvested, none checked and counting.

Time is our enemy, must work to, the sun is our friend, must relax to.
With best regards
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#13
Interesting. Mine are red when charging and green when full. I have left mine in for hours after charging and they never go from green to red to top up. Also, I'm not using a separate power supply, I'm just using old USB wall warts from phones and tablets, which is how I can monitor charge with a Charger Doctor. I can even see when the TPs go from CC to CV, as the amp draw goes down, and when they switch from red to green, it reads 0.00A. Obviously the LED is still drawing current, but it's less than 0.005A.
Formerly known as Dallski
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#14
https://www.aliexpress.com/item/32998294...4c4dSn01Z2
I am going to order 10 of those.
It was on my wish list anyway, i will keep a 5 min time lapse record on excel.
Just to be sure.
Now i have to figure out how i must post a excel, or a part from excel(:
F***..... me and computer(windows) will never be friends....where is the time of ((gw) (or) ©)basic and dbase?
I am still in the early 80's.

I will put them on my testing board, NOT on my production board.
It was planned anyway.
If i am allowed to give you any advice: take in consideration...please buy a good psu, please.
It will reward you.....

I also ordered two weeks ago some step down converters, for my 12v 60 amp beast...
Because (i think) my 6v 30 amp is a little to weak to handle what i am asking for.
Just 30 tp/tc's, its to weak for start up loading fresh harvested 30 cells in one go.
https://www.aliexpress.com/item/32872607...4c4dgbKM9f
All ready got 3 of them and they don't disapoint me.

I hope the links work, best

mine are red and blue btw
Still learning English. Learning Li ion and solar technology.
+/- 3500 Li ion cells harvested, none checked and counting.

Time is our enemy, must work to, the sun is our friend, must relax to.
With best regards
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