FERCSA
Member
- Joined
- Jan 16, 2017
- Messages
- 87
Okay, so I got a few TP clones as Imentionedbefore. I'll include some cheap "western" equivalent or similar in the test later.
Quicklist:
TP4056, BL4056, TC4056A, CL4056, ME4057, BQ24090, BQ21040, MCP73830
(click for bigger picture)
[img=300x224]https://www.fercsa.com/fcds/testing/fercsa_tp_clones.jpg[/img]
Finally I made my testing jig on a breadboard(detailed post later) and here is the first result from an genuine TP4056 IC.
[img=300x188]https://www.fercsa.com/fcds/testing/fercsa_cgr18650e_tp4056.png[/img]
Here is the CSV file too, if somebody want to play with it or make a nicer graph.
But you can see the important stages, I label it this time.
[img=300x182]https://www.fercsa.com/fcds/testing/fercsa_cgr18650e_tp4056_explained.png[/img]
-No battery means charger is idle, no battery present.
-CC stage, constant current stage. Looks like the voltage rising slowly and not delivering the maximum set of current, just limiting it.It's a little bit weird so I'll repeat my test one more time. Because,whenresting the battery the voltageis around 3.6-3.7V, then this is stage is mostlyskipped.. or just too quick.
-CV stage, constant voltage stage
-On the end the voltage and current drops, so charging is over andwe measure the battery voltage and ~zero current.
Of course EN pin working. Spoiler alert: on all of them.
I'll try to testone chip perday, but it's take time to discharge and charge the same battery, which is a purpleguinea pig aka CGR18650E.
(If you have a different TP clone which is not on my list and willing to post it to mein a simpleenvelope for comparison, please drop me a msg)
Quicklist:
TP4056, BL4056, TC4056A, CL4056, ME4057, BQ24090, BQ21040, MCP73830
(click for bigger picture)
[img=300x224]https://www.fercsa.com/fcds/testing/fercsa_tp_clones.jpg[/img]
Finally I made my testing jig on a breadboard(detailed post later) and here is the first result from an genuine TP4056 IC.
[img=300x188]https://www.fercsa.com/fcds/testing/fercsa_cgr18650e_tp4056.png[/img]
Here is the CSV file too, if somebody want to play with it or make a nicer graph.
But you can see the important stages, I label it this time.
[img=300x182]https://www.fercsa.com/fcds/testing/fercsa_cgr18650e_tp4056_explained.png[/img]
-No battery means charger is idle, no battery present.
-CC stage, constant current stage. Looks like the voltage rising slowly and not delivering the maximum set of current, just limiting it.It's a little bit weird so I'll repeat my test one more time. Because,whenresting the battery the voltageis around 3.6-3.7V, then this is stage is mostlyskipped.. or just too quick.
-CV stage, constant voltage stage
-On the end the voltage and current drops, so charging is over andwe measure the battery voltage and ~zero current.
Of course EN pin working. Spoiler alert: on all of them.
I'll try to testone chip perday, but it's take time to discharge and charge the same battery, which is a purpleguinea pig aka CGR18650E.
(If you have a different TP clone which is not on my list and willing to post it to mein a simpleenvelope for comparison, please drop me a msg)