Hello, I already know one of my posts but I have a problem with the Verto screwdriver. I replaced a ni-cd battery cartridge (it no longer held voltage) for a li-ion battery with a 5S balancer.
The battery charges to 21V, probably because it has so much input.
But there is one "but" screwdriver after suddenly pressing the rotation button does not suddenly go into high speed only when I press the button gently but sensitively gives you to go into high speed and are awesome ... Tell me how to "give a kick" to the screwdriver's engine when suddenly pressed the button worked as it should
This is a question whether new or recycled. If you stop the accelerated engine with your hand, does it get up and move on? If not, I suspect that during the sudden start there is a significant power consumption, there is such a large voltage drop that the controller stupid / hangs. I mean the current efficiency of the cells is too low.
This is a question whether new or recycled. If you stop the accelerated engine with your hand, does it get up and move on? If not, I suspect that during the sudden start there is a significant power consumption, there is such a large voltage drop that the controller stupid / hangs. I mean the current efficiency of the cells is too low.
The laptop battery is still operational. It cannot be stopped by hand at too high a speed as I give for drilling, and as I give the clutch on 3rd gear, the ram after releasing the head goes on.
She has a problem with the engine kick. Some capacitor in front of the motor can give?
It is also possible that the BMS (balancer) itself limits the current flowing during start-up. Make a test by directly connecting the Li-Ion pack to the screwdriver, bypassing the BMS system. Then you will know what the cause is.
It is also possible that the BMS (balancer) itself limits the current flowing during start-up. Make a test by directly connecting the Li-Ion pack to the screwdriver, bypassing the BMS system. Then you will know what the cause is.
Do P + and P- only on the charger plug or something?
You can do that. However, then BMS will not disconnect the packet from the load when the cells are discharged excessively. You will need to feel when the packet is unloaded or load it more often. Alternatively, add a small digital voltmeter for a few zlotys and check the package voltage with it.
Do P + and P- only on the charger plug or something?
You can do that. However, then BMS will not disconnect the packet from the load when the cells are discharged excessively. You will need to feel when the packet is unloaded or load it more often. Alternatively, add a small digital voltmeter for a few zlotys and check the package voltage with it.
Do you mean any specific voltmeter?
I will make cancer because there is no point in buying another balsnser.
Hello, it can be used as in this link, If the voltage drops below the set limit, the buzzer will turn on. Just like in this movie. https://www.youtube.com/watch?v=bn9R3RiBctE. On the well-known portal, enter the LIPO voltage buzzer meter then you will find what you are looking for.
Hello, it can be used as in this link, If the voltage drops below the set limit, the buzzer will turn on. Just like in this movie. https://www.youtube.com/watch?v=bn9R3RiBctE. On the well-known portal, enter the LIPO voltage buzzer meter then you will find what you are looking for.
That's what I ordered, also connecting each cell to the balancer so that the meter monitors the voltage individually?
I used the same balancer as the one shown here on the forum and the Ryobi CDI-1801 18V screwdriver does not count, unless the starting current is too high. While the EUROTEC WPCD105 18V screwdriver does not go hand to stop working so well. Tested on SAMSUNG INR 18650-15Q 1500mAh cells with 18A short-circuit current.
I was tempted to do the same test only on SONY US18650VTC4 2100mAh cells with 30A short-circuit current, the situation is similar to that with EUROTEC engine until the smoke goes.
Conclusion: if what is mentioned above in the previous posts is true that without a balancer some screwdriver started (I did not test) and with the balancer not, then I wonder why since the balancer gives - it allows such a high current at the start that until the EROTEC went smoke from the engine and the screwdrivers are not going to be stopped by hand - a grip on the rotating bit clamp, are there other screwdrivers that in their normal work need even greater?
For the above, I conducted a test because it gave me no peace. I desoldered the wires from P + and P- to bypass the output of the whole voltage of the packet from the balancer and soldered to B + and B- to connect the current output directly to the battery packet without the balancer and the screwdriver started. At the same time, I find that the Ryobi CDI-1801 18V screwdriver on the cell pack works a little less than EUROTEC WPCD105 18V and you can safely stop it by hand, which would suggest a less-rigid Ryobi transmission or a weaker engine, but more power-consuming. The solution to the above, for the screwdriver to work with a balancer controlling cell discharge, would be to look for a balancer giving higher current output or one in which + the whole battery, all cells connected in series is simultaneously + blender, similar to the minus is also common. Then the full battery power will be released.
Something like the link below except it's 4s, not 5s:
The discussion revolves around a user who replaced a Ni-Cd battery in a Verto screwdriver with a 5S Li-Ion battery pack, which charges to 21V. The user experiences issues with the screwdriver not reaching high speed unless the button is pressed gently, suggesting a problem with the motor's initial power draw. Responses indicate that the issue may stem from the battery management system (BMS) limiting current during startup or the current efficiency of the Li-Ion cells being inadequate. Suggestions include bypassing the BMS to test performance and monitoring battery voltage to prevent over-discharge. Other users share similar experiences with different brands, indicating that high starting current requirements may be a common issue across various models. Summary generated by the language model.
