Li-ion 18v or Li-ion 14.4v Should I Build for Nimh 15.6v Power Tool?
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- Опубликовано: 5 окт 2024
- Please share your experience with us, if you know the correct answer. I do appreciate for all the answers.
The Original Battery 15.6v 3Ah
Normal voltage is 15.6v = 13 cells x 1.2v
Fully charged voltage is 19.5v = 13 cells x 1.5v
Capacity 3Ah or 3000mAh
13 Nimh cells 1.2v 3Ah or 3000mAh
Lithium-ion battery 18v
Normal voltage is 18.5v = 5 cells x 3.7v
Fully charged voltage is 21v = 5 cells x 4.2v
Capacity is 3Ah or 3000mAh
5 li-ion 18650 LG 3000mAh 20A
Lithium-ion battery 14.4v
Normal voltage is 14.8v = 4 cells x 3.7v
Fully charged voltage is 16.8v = 4 cells x 4.2v
Capacity is 6Ah or 6000mAh
8 li-ion 18650 LG 3000mAh 20A
The motor can accept 19.5 volts. I think 18v or 5s is the best choice for this project, but the battery case can only load 5 cells so the capacity is only 3Ah. If the motor works well with a 14.4v battery, it will be good because the 14.4v capacity is 6Ah. I decided to build both types for testing. As a result, the drill with 14.4v battery performed well with the test. I think 14.4v is my best choice for this tool.
I hope you find this video useful and enjoy!
I am happy to receive feedback, suggestions to improve myself.
!!! I'm sorry for the mistake if I did this video !!!
** I still keep some parts, I want to help the world environment **
Thank you very much for your likes, comments and subscribe!
Have a nice day
Gear Show
He is the type of man who does not throw away old tools👍👏
Thank you!
I would be afraid that too much energy would burn down the motor. Since it's not happening I think I would use 14V for everyday work and I would keep 18V battery loaded for special use or for some other impact tool. Great work!
Great point, thank for sharing!
Got the same situation. I have a cordless drill with two different battery packs. 3S and 4S lithium. One additional cell doesn't matter at all.
Great job Sir.
I personally would run it with the 18v setup you showed.... It looked to me like it had better rpm's and better torque....
It'll also be lighter.... Which, if you have to walk around with it some, that will be a plus....
Okay, thank you so much for sharing :)
Do not speak, let the tools speak only with their own voice 🌟
18 volt more power but low runtime!
14,4 volt good power and runtime is better configuration.
Yes, thank you for sharing :)
once made an old rusty hilti 15,6 run on the bosch 18v system. no probs so far. just using full batteries and all, so probably 20v-ish. but results ofcourse may vary ;)
Man those old DeWalt impact drivers he used at beginning are some of the longest lasting impact drivers ever, and the old DeWalt Nicad drills from the early 2000’s.
Oh, it's 20 years old.
Yep I hope it works well for you.
i thinh when you need powe use 18v, when you need more work time use 14,4v
Yes, you're right :)
You should run it a "reasonable" amount of time with both packs, and measure how hot the speed controller is getting. Remember to also check at less than full RPM. It is probable that this is the part you would wear out, unless your tasks often put the drill in a near stall state, then with the motor bogged down the 18V will be worse because it's not pulling air through it.
Ultimately I have faced a similar situation and I chose neither. I would have chosen a 14.4V, 4S1P pack with only 4 cells, because like you, I have multiple drills and when I need high power I will reach for one of my newer more powerful drills, with newer cells in their battery packs as well, so for rebuilding an old drill that already has significant wear anyway, to not push it too hard and make the battery pack retrofit worthless because the drill dies, I would use the drill more for light duty, with ligher weight battery and cutting the # of cells I used would be more important, so it would just be a 4 cell pack and what I'd often end up using one for, is have a 1/4" adapter in it for screw driving, so I have one more powerful drill making the drilled holes then that drill driving the screws, and in that case, since your holes are pre-drilled, the torque isn't needing to be much, and higher RPM just makes modulating the lower RPM you want, require more attention and care.
However, for lighter weight, that isn't the right drill to choose no matter how little the battery pack weighs. Unless you have other tools that can use the same battery pack, I would question whether it is worth rebuilding a pack for it at all, let alone two packs at different voltages so you need two separate chargers and with one, not even being a regular dock since you need the two separate PSUs so something has to get swapped around to charge both packs, making it less convenient and subject to user error if you aren't paying attention. Likewise having just those battery connectors with wire soldered on, wouldn't cut it for me. I'd want it plug and play for any random soul that comes along and thinks that they know how to charge a tool battery without realizing what you've done. :)
Plus if your dodgy generic chargers fail and cook the batteries, 4 cells makes a smaller fire than 5 or 8 cells. ;) We could hope that the BMS saves the cells, but to some extent those BMS are only designed to work with a properly functioning charger and could fry themselves if the charger starts getting wonky. Another thing that can fry the BMS is the back EMF from a brushed DC motor, often the BMS have instructions to put a capacitor and/or diode(s) across the power leads to mitigate that. It does make you stop and think, if the BMS fails, will the result just be a dead drill, or worse.
The extra capacity (and potential for more current delivery) here is going to benefit you more than an extra few volts and half the current delivery capacity.
Yes, thank you for sharing :)
This is the best Editing and Restoration video on RUclips 🤩🥳, i love it😍
Thank you so much 😍
@@gear_show we😎
congratulations friend great job
Thank you :)
ты молодец! даёшь вторую жизнь старому инструменту.
Самый лучший канал о реставрации инструмента. Сам думаю свой шуруповерт Bosh psr 12 ve-2 2002 года отреставрировать. Привет из России)
Nice job man keep up the good work.You're the boss!!!!!
Thank you so much :)
Комментарий в поддержку видео и канала, а также труда мастера.
Beautiful
yes
Lord of gear ⚙! 🌹
:D
It depends on the motor nomimal voltage. If the motor is 15-20V then you can use 5s configuration. If you don't have the motor's data then it's better to go with 4s configuration, in high current loads you might even have better performance than 18V because of less voltage drop and more power from the battery pack! Moreover, if the motor is not capable withstanding 18V in the long run you are diminishing motor's life span.
Okay, thank you very much for sharing :)
Amazing presentation and super install 👍
Thank you 👍
Whether it is 18v or 14.4v it is important to have a bms while you charging the battery pack. As drills are highly power consumpting , charging and discharging cycles may very short so you have to charge once a day(may differ).how ever li ion batteries are more dangerous than nimh batteries so you must have a bms. But the issue with having a bms inside a drill is whenever we use to drill something ,onset of drilling: requires a non-rotating stage. In this stage drill motor act as a ohmic resistor, So you know that copper winding inside drill has very low resistance ,so ultimately current goes high as #hit. So BMS definitely cutoff its power and drill goes off. Every time you try to drill something ,this happens. So it's better to measure current draw before setting a battery pack.
The answer to your question ,according to my knowledge , is to use upper voltage as the voltage go high power of the drill goes high. This is true only if you dont use a BMS inside the drill. So you have to connect battery directly to the drill. But whenever you charging it's better to use a BMS . Unless single cell may die very soon because capacity of each cell is not equal . The cell which has lowest capacity will charge soon as well as discharge soon. This will lead to over-discharge and over-charge of that particular cell.
Think this may help you in some manner.😊
Okay, I do appreciate with your information.
@_Schwalbe_262_ A capacitor won't be effective as a soft starter because if we try to start drill with a load, current drain will exceed the maximum current limit of BMS and it gets off.
best option to get maximum power of drill while using a BMS is , use BMS to charge cells, but not to supply drill motor. So power line to drill should directly come from battery terminals.
By this way we can have the maximum power of drill but keep in mind over discharge protection is not available in this method
@_Schwalbe_262_ images.app.goo.gl/dN2VDThbf45wCdaH7
here the schematic. The idea was to bypass the bms and supply directly to motor from battery.
@@thilinaakalanka5678 Your advice leads to a risk of damaging the cells by overdicharging or worse - fire hazard in case of motor failure. You should never use li ion batteries without BMS.
Your BMS may activate due to high starting current, but most of them can be modded to increase the delay of overcurrent protection by soldering a different capacitor to a specific pin.
Hammer time!
Yes :)
using 4s 6AH battery is reasonable in this project. The performance of the machine does not decrease much compared to the battery 5s 3AH
Thank you for sharing :)
Hmm, i would prefer 18V on this one since it's also drill.
Thank you for sharing!
Have you ever tried retro bright on the stained grey parts before? I think it would really improve the look of your tools.
Yes, thank you for the idea.
1:00 this way always work 😁😁😁
Yes, you're right :)
Excellent work👍👍👍 . Thanks for sharing
Thank you! Cheers!
My head tells me 14.4v, but my heart wants 18v
I have the same thought before I make this project.
Interesting project and great job buddy👍👍👈
Thank you so much! I'm glad you like it.
I have a very similar project in mind. But planning on changing the base of the tool to accept makita batteries that way i dont need an extra charger or need to repack cells and bms. But im unsure if the 15.6v motobo drill will take the higher voltage. Any ideas???
👍👍👍👍👍
Show, congratulations
The packing foam may act like an air filter under the batter lid air vents
Nice
Thanks
Awesome
Thank you!
Sizi turkiyeden takip ediyorum sizden daha çok dewalt bosch makita şarjlı vidalama ve matkap yenileme videoları bekliyoruz çok temiz ve başarılı işler yapıyorsunuz tebrikler
Wow
Well done
Thank you!
Very good job, but my friend why you are used Li Io changer why you are not use the normal charger because already you have protection board for Li Io battery.
The protection board designed to work well with li-ion charger.
How do you make stickers
I make them with Adobe Photoshop and print with Canon inkjet printer.
Good job sir
good chop
15,6/1,2 (nimh battery voltage) = 13 cells. Nimh batteries can be charged to 1,4 volts so 13*1,4= 18,2 volts. I would say use 18v li ion ;)
Okay, thank you for sharing :D
Geniales como siempre 👍¿Podría mandarme enlace de donde compras esas baterías de litio?
Excellent sir ❤️❤️
Thanks a lot
Good job mash'Allah
Thank you!
Good job thanks
u should check the motor rating as the durabilty of rhe windings wire is affected by generated current from the applied voltage, choose the longer life voltage
Okay, thank you for the tips.
👌👍
The 2nd way to remove drill chuck are commonly works because of kinetic energy I guess
Yes, you're right :)
Nice job :-) yet again! cheers, Ruud (NL)
Thanks again!
Hi is there any way except battery cells welder device for assembling? Can you show us?
I’m thinking of way’s to retro fit my grandfather’s makita tool. It’s a 14volt but one of the first 14volt’s the machine just feels so nice in the hand but it’s not powerful enough I’m trying to source materials to covert it to 2021 18 volt standards
❤Aamezing dude❤
Glad you like it
Good job 👏
Awesome sir
Thank you!
Is it possible to build a 15.6v 5Ah battery for this power tool, or is it too big for the battery case?
Also, the capacity of each battery is as follows: 14.4v/6Ah = 86.4 W/hr, 18v/3Ah = 54 W/hr.
Great tips, thank you for sharing :)
Thank you
Welcome!
Всё классно как всегда!
Thank you!
did the same but extended the box and went 2x4 batteries, the way you did it it's not gonna last more than 15 min.
Okay, thanks for the idea.
if u need torque or speed go for 18V but if u need low power for small screws or simply more run time go for 14.4V
Yes, thank you for sharing :)
Thanks 👍👍
عمل رائع شكرا لك اخي
How do you know if you need more or thicker nickel strips? Do you know how many amperes does the motor draw?
Greetings!
I'm watching from Russia.
I still didn't understand why this test was needed at the end with different voltage batteries?
It seemed to me that it works the same way?
It isn't the same, 18V is more power that 14.4V, But 14.4v lasts longer than 18V.
nicely done. the price of these batteries is 2 or 3 times higher than that drill, is it worth doing something like that?
Thank you!
Hi good day to you sir. I would like to ask regarding to my old tool, a SDS Hammer Drill with a Ni Mh 24V, is it possible to be converted to 24 V Lithium Ion battery? thank you sir
Hallo RUclipser, ich hätte eine Frage, wo bekommt man die kleinen Zahnräder her
Вы слышите это? Детей нет. Они отправились в детдом, чтоб не мешались. (Чёрный юмор)
Thank you for sharing
My pleasure
Có thể đóng được 10 cell 18650 vào vỏ National 15v6, thành 21v 5Ah, dùng mạch Makita màu vàng 5s65A. Vietnamese.
you need more fresh repair like loss tension on selector... from cordless drill. because I have some hahahhahaha.... always nice dude... go ahead...🙋🙋
Thanks for the tips!
Enough room for 5 of 26650 5Ah batteries?
you use the original 16.8 volta, it will be better for the machine! in Vietnam. This machine uses 16.8 Volta 5ah, the machine is stronger and more durable! Anyway, you did a great job!
Thank you very much for sharing :)
Amazing..
Thank you!
Really good work
Hi friend good job . please I have drill with 14.4 v 1.3ah what is the chose ans number of the batrie lithiom thinks
Choose high drain battery for your project.
All manufactures should not be able to sell there products such as power tools etc etc unless they make spare parts for them as these days you are lucky to even get a replacement part, SICK of this throw away society. I was raised to repair something if it broke.
Waterproof (shrink tubing) insulation tape work
Love from Kerala ❤️
Thank you :) I wish all indian people save from Covid.
18v for the win. Wouldn’t use any other voltage.
Okay, thank you!
quá chuyên nghiệp
it is possible to change the motor from brush to brushless
Yes, it is great idea.
After long time waiting
Yes,
👍👍👍
i thijnk that is a national model drill?
Dear GearShow! 18V stronger. :) My opinion.
I wonder how do you print all these labels. What kind of printer and what software do you use?
I use Adobe Photoshop and Canon Inkjet printer.
Good job sir, I like it
Thank you!
What type of motor is inside
I built 14,4 v with lithium bataries . But my balanced BMS device broken in a short time. Now doesn,t work. Now ,l will build again. Which BMS device should l use for my drill ?
You could find BMS like I use in this video.
@@gear_show you didn' t share BMS board type !
Great video good brother
Many many thanks
Amazing good video infomation brother 👍
Many many thanks
I noticed that in drilling test you anticlockwise rotated to hole.... Was it intentional?
It is an optical illusion caused by the speed of rotation of the drill and the cameras shutter speed
Снял одну половину показывает другую.....
Huge motor , over 20A 15V ?!
I didnt even realise you could mix lithium and nimh batteries. I thought it was like putting petrol in a diesel car lol
He didnt mix batteries, one remaining nimh battery cell kept connector in place.
Where do you get these product
I found these products from recycle shop from Japan.
Спасибо за видео!!!
Да, с удовольствием