That 0.5A is current drawn from the 3P battery due to equalizing its voltage to a 1P one. This is why the current goes down, the 3P battery become slightly discharged as it slightly charges the 1P one. Furthermore, that transistor end up in saturation (due to heavy base current) connecting the B- (collector side) to the ground (emitter side), which does virtually nothing to the charging current, because charging current still goes through TP4056, because this IC regulates the current at the positive side. Changing that programming resistor to 1kΩ increases the output current to the 1.2A, which is kind of unfortunate as the TP4056 is rated to 1A max. This modification is nothing than a nonsense from its beginning to the bitter end.
Wow! That’s cool. If this could be done , may I know is it possible to do one mode similar to make a 3S bldc esc into 200v bldc esc ? I didn’t see anyone doing this yet. Thanks ❤
This connection is not correct. If so, we should do a separate battery charging by banning with a 4s balancer circuit. I made this as a test for this module.
@@homemade_101 I was considering using a NC relay for the 4s and pull it when the charging circuit activates but then i'm not sure if the relay will fail open or closed and that would be a fire hazard. also considering i wish to use it in a battery back for my old hammer drills there would not be room for the 3 high power relays that would be needed. I could use a A triple-pole switch but i don't like manual control especially if you forget then you fry the system.
Dear you are creative. The first question, what is the benefit of the 1 kilo resistance? Why didn't the blue LED light up after the complete charging? Thank you.
A carbon film is used because the SMD resistor burns when a large current is passed. It will not turn blue because the batteries are not charging at the same time. A balancer will be used for this.
И нахера там транзистор если все всеравно идёт через микруху, она и ограничивает ток, максимум может дать 1А заряда. Читай даташит и схематику изучай тормоз!
Последовательно с микросхемой еще транзистор. Ну да смысла от него нет. Это наверно если шунт в его цепи ставить, который микросхема будет анализировать.
