Addressing the comments with people saying using a solar panel with TP4056 will not be a problem: 1. I would like them to take some time and read the links I have added in the description section saying the exact same thing I am saying in the video. I would have accepted I am wrong, "IF" I was the only one saying that. There are a lot of people saying the same thing in the internet. 2. Something bad didn't happen to your circuit doesn't mean it is safe, or it will never happen. You might get away with using that unsafe circuit and not have a problem in your lifetime, but it is also possible that the conditions are not in your favor just once, and you had a serious issue with your circuit. 3. It can never hurt to be extra safe, especially when working with Li-Ion cells. 4. As one comment is suggesting, I WILL NOT TAKE DOWN THE VIDEO. Even if the circuit for using solar panel with Li-Ion cells is not useful, load sharing is a very useful circuit. Just read the applications of this circuit and you would see what I mean. One example is your laptop, when you battery is completely charged, the laptop is completely running using the power from the charger and not the battery. Even when you remove the charger, it doesn't turn off but runs off of battery. How is that happening? Load sharing! No one knows the effort that goes behind making even a simple UKposts video until you do it. So please don't just come of the blue and ask me to take down the video. Thanks!

I don t think the 4056 will overcharge over 4.2V, but it will eventually keep it to 4.2 if the lod current is above the termination current. Not even sure if this circuits works correctly in the early morning with low battery level and weak solar panel current. This circuit is usually adopted for wall chargers with a solid 5V input

I think this is not right, because, even if the Charger dont shut down, because current flows, the Voltage never go above 4.2V. And this is save, all the current goes thrue the Load. This is not a bug, its a feature.

I have a quite pro device doing the same when it's on in a charging dock. It happens because the load is using higher than the battery charging can catch up to. Charging is much less in general for safety. One can make a project sleep to some degree or crank it up. I don't know if it's relevant in this video. I still learn something. The funny thing is that I didn't expect to learn so much and be forced into caring about power delivery from batteries. It could be easier, but we jumped into those DIY subjects ourselves.

Load sharing is one of the most critical and useful circuits if you are making battery powered things like robots or remote solar powered stations! thank you so much for finally having a video on this.

Works just fine. I used IRF9540 MOSFET, SB260 diode and 10K pull down.

As I understand, the load keeps having power when we have sun, right? At what point, the solar panel will stop providing power straight into the load? for example since the solar panel starts providing less than 4V? so after that, the power to the load comes from the TP4056? this circuit is fine if we want to have our esp32 working while the sunshine is maximum?

This is nonsense. The TP4056 won't charge the cell above 4.2V. Doesn't matter that the rest of the circuit is drawing power - the power isn't going into the cell - it's going to the rest of the circuit. TP4056 will start charging when the cell voltage falls, and stop when it rises to 4.2V again. It's not going to overcharge the cell.

Incredible!

With apologies, as I'm sure this is a n00b question... What is the value of the pull up resistor.. 10k? Thanks for your information.... Super helpful! @Tesalex

can you do this without pcb only wires?

Good effort...👌👌

No - the TP4056 DOES have a charge protection and will never go beyond 4.2V so everyone is safe.

I'm glad lots of other people think this video is nonsense.

Great Job

Hey i didn't understand Y u can't directly connect the TP4056 without load sharing Cause TP4056 has over-voltage protection And the battery charging is separated from the output so it won't overcharge the batter

1:51 I think that the circuit shown here is not complete, unless of course the connected load can accept a wide voltage range: 3V...8V. I think that when the power bypasses the TP4056 board, there should be a decrease in voltage from 4.2V...8V, which can be supplied to the TP4056 board, to the maximum voltage at the output of the TP4056 board, namely 4.2V. In addition, I think that the circuit shown assumes that there is a stable power supply at the input and it may not work properly if it is powered from a solar panel.

To those thinking that load sharing is needed because of overcharge protection, it's not the reason. The reason to use load sharing is trickle charging. The out of tp4056 alwaus runs off battery and discharges it which triggers the charger module to recharge the battery which wastes charging cycles. Load sharing prevents that

Hello i tried to do the same in Kicad but i've received some Errors and i don't know how to solve it It possible for you to do it in Kicad? or could you please give me tipps to solve the problem in Kicad?

By coding with Atiny; I think it requires logic integrated circuits, but without that, can we take the voltage value with an integrated coded in Atiny and tell it to supply it according to percentage values? This is a 4056 integrated circuit, I thought it cut off automatically, maybe I'm wrong?

This guy made a video not even reading TP4056 datasheet... Otherwise, he wouldn't be talking nonsense.

Diode using is 40v 1a as i can see. What if i want to connect 3parallel 18650 or more to charge and want to draw 5a?

Is is possible to connect a motor to the tp4056 to charge the battery when the motor is turned?

How bout with minimal load like for cellphone charging, is it safe... 🤔

Please share schematic of all connection on the circuit board.

I agree with the first guy you don't know what you're talking about it's the whole point of a protection to protect it from overcharging and undercharging you really need to rethink this video because I'm a novice and immediately knew you were wrong maybe you got a bad board from a careless manufacturer

1:06 Most likely, the mentioned problem does not exist at all - someone just made it up. If at the battery connection points, when the battery is not present, the open circuit voltage does not exceed 4.25V, then the described problem will not occur. The battery can be charged to a maximum of this voltage and no more.

I did not able to get the desired result. I am using ur ideas with solar panel. When i off the solar, the output no longer reach the 1v. Did you know why? I want to used your design for my solar powered arduino project. As result the output produce 3-4 v with the existing of solar. When solar not available, the battery not even output 1v.

using bms 1s 3 amp max is enough.

or..... you can buy a pt4056 with protection.

Which country do u live

This is incorrect. The TP4056 detects when the cell is almost fully charged and reduces the charge current to zero when it falls below 100ma. If any load is drawn, it supplies only the current drawn by that load keeping the charging voltage just under 4.2V. For example if the TP4056 charges a cell to 4.2V it will drop the charge current to zero. If you then attach a 200ma load, the TP4056 will supply only 200ma, powering the load but not overcharging the cell. This is all in the datasheets and you can verify it yourself easily enough.

errors in your specifications not an accurate guide

you are crazy man read the datasheet first

This video is completely wrong