DIY BOSCH Ni-Cd Convert To Lithium Li-ion Battery Using18650 Cells
Here you can see the products which i used in this video
High Drain Lithium LiitoKala HG2 18650 3000mah
Aliexpress s.click.aliexpr...
Amazon amzn.to/30tfmUp
BMS PCM Battery Protection Board
AliExpress; goo.gl/B3bY7J
Amazon amzn.to/2vbLr5U
See my blog :diy-tipstricks...
In this video, convert the old, Ni-Cd battery of the old BOSCH drill to the lithium battery using 18650 cells from a laptop battery.
If you want something profi, buy high drain cells with max discharge current 35A, for electric toys.
For the protection of the 18650 cells, use a 3-cell Li-ion Lithium Battery Recharge 20-25A Protection Board PCB.
Over chaege protection 12,2v
Over discharge protection 6,9v
Due to factors beyond the control of DIY Tips&Tricks, it can not guarantee against unauthorized modifications of this information or improper use of this information. DIY Tips&Tricks assumes no liability for property damage or damage incurred as a result of any of the information contained in this video. DIY Tips&Tricks recommends safe practices when working with the tools or equipment seen or implied in this video. Due to factors beyond the control of DIY Tips&Tricks, no information contained in this video will create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from the improper use of these tools, equipment, or information contained in this video is the sole responsibility of the user and not DIY Tips&Tricks.
► Music provided by: No Copyright Songs - Best Of
► Elektronomia - Sky High - No Copyright Sound: • Video
🔈 Download this song here : goo.gl/vdfQYa
Пікірлер: 45
Аккумуляторы с батареи ноутбука не рассчитаны на отдачу больших токов, плата зарядки должна быть с балансиром.
Nice Job. To how much Voltage does the original 7,2-12V charger, charge up the batteries? The 4A BMS is probably way too small but I see the problem with limited space.
@ryanvlogger3786
3 жыл бұрын
I also
What about the charger, it's meant for for Nicads, don't you have to modify that for Lithium ion batteries as well?
@captainjim1010
5 жыл бұрын
That is a very good question i want an answer to that as well
@barthoebergen4631
3 жыл бұрын
@@captainjim1010 Two years later, but allright haha. From what I understand it won't damage the batteries as long as the total capacity of the batteries is more than the voltage used in the standard batteries. It will charge up until target voltage is reached and will not use 100% of the batteries but also won't damage them
@danizweifler6061
3 жыл бұрын
@@barthoebergen4631 ? ? ? ?.....well it seems to me, that your "understanding" of charger specs has some "gaps".......... // and my coment follows only 2 month's later than you spicy answer for "Whirled Peas" question......
Why use 6 batteries when you only need 12V? 6 x 3.6= 21.6V won't burn the machine?
Вчера разобрал свою АКБ бош-профессионал. Сколько там места!!! Сразу задумался об увеличении ёмкости
Como vc conseguiu abrir o suporte das baterias ?
You have used 3 Li ion cells in series giving 12 V while the rated voltage for the drill is 9.6 V this may result in burning the drill motor
@CMCdiy
6 жыл бұрын
Do not burn because the volts you give in addition (between 9.6v and 12v are 2.4v) represent 25% above normal operating current. In your case between 4,8v and 8v (which they give two cells in series) ie 4v in addition, it is about 65% over, and you can burn the motor drill. In your case, you'd better try with one cell kzread.info/dash/bejne/aWeCu5dyo7qae7Q.html ,or change old ni-cd with new ones
@freeforall2263
5 жыл бұрын
Ihab Ahmed iyyyyTENEtnryjajajej e jeiwisij
@valmonta3647
4 жыл бұрын
I have exactly the same drill and i tried with the Li ion batteries and it didnt power up ... any clue why ?
@pgpilot3884
2 жыл бұрын
9.6V is nominal voltage for 8 Ni-Cd's or Ni-Mh as is 11.1V for 3 Li-Ion 18650's. The brushed motor can handle the little higher voltage, no problem.
Great diy. Thumbs up!
@CMCdiy
7 жыл бұрын
Thanks
How are you going to charge the batteries fully? The charger only charges up to 11,2V and not the 12,6 you need to charge 3S pack fully. At 3,7V per cell they are only chaged about 75%
@CMCdiy
7 жыл бұрын
Hi! The bosch charger is 12v . Without the BMS 18650 Charger Protection Board, the 18650 battery can explode. The bosch charger can also give a higher voltage. You have to be carefully! See this image:ibb.co/mvOm25
@Sinista123
3 жыл бұрын
The Bosch Charger is designed to charge 8S NiCd cells. One Cell has typically 1,2V. 8 x 1,2V=9,6V But the charging voltage is a little over 12V. So 12V :8 = about 1,5V each cell. 3S Lithium can be charged with up to 12,6V. So if the Bosch Charger does exactly 12V, the each lithium cell would be charged with 4V. But usually it's a little more than 12V. BMS with overcharge protection is necessary.
....how do i open the battery box...
@UltraNyan
3 жыл бұрын
they are usually platic welded, so basically you have no other option than to cut it
@rishiwerty900
3 жыл бұрын
@@UltraNyan ooo ya ya..ok thanks...
No me cuadra algo si el taladro es de 9,6v para poner 6 baterías de litio que cada batería normalmente son cada una 3,7 v x 6 batería = 22,2 v no valdría y que yo sepa baterías de 1,6 v no existen
que bms 4-5 amperios,no va, debe ser al menos de 30 amperios, los taladros generan picos altisimos de Amperios
Great!
Laptop batteries can't even handle my RC car .. How could they handle the drill? Probably died after few minutes..
How much a shuld be the bms
In my experience with PSR 7,2 battery, converting form 4Amp NiCad to Lit-Ion. The problem is the protect circuit. I bought some protect board from ebay. The 1st one work great and the seller said that was for modify 7.2v cordless tools and work perfect with PSR charger, it cost me $10. Even sometime failed to start the motor after 50% capacity. But it's ok because I have dozen of laptop battery for free. It's start failed after a year use, the controller cannot charge battery balance. I replace with 5Amp, 7Amp and 10Amp new protect board but never work like the 1st one that I was buy, 2 of them make my charger very hot. And Unfortunately I cannot found the 1st seller on ebay. So this week I replace the Lit-Ion battery with 12 x 1.2V 800mAh AA NiCad taken from my kid toys. I got 7.2V 1500mAh, but need modification with the battery pack case to fit all 12 AA battery to the case. IAll 12 Batttery cost me around $10, and work fine. I plan to replace with 7.2V 3000mAh RC toys battery that I was found on banggood.com last night.
@pgpilot3884
2 жыл бұрын
Your problem is the use of laptop cells, not the bms. The voltage of laptop cells drops significantly under load. You need high drain cells who can deliver +20A continuous for 7.2-12V power tools and +15A continuous for 14.4V and up.
J thougt that lithim batery cant be charged on ni cd charger
Es mucho trabajo. Mejor un par de baterías 18650 y listo.
por donde cargaras las baterias, estudia bien el circuito
too low power 5A, my bosch 9,6V with 3 Sony VTC5 is triggering a 20A BMS.
@CMCdiy
7 жыл бұрын
herik63 . 5A for charging. Is directly related for discharge
@herik63
7 жыл бұрын
the BMS drops the current, but the motor needs more, I tried in the past and when I keep the mandrel to close the current exceed the 20A capability of my instruments, is 200W for a couple of seconds, the battery must be of hi current models, for charging 2 A is sufficient, or the regulator in the power supply will heat excessively :)
@CMCdiy
7 жыл бұрын
You are right. I found on ali expres, 25A Li-ion 18650 BMS, very cheap. I'll try this
Will not work on 20 amp BMS at full load
@CMCdiy
Жыл бұрын
Hi How many amps do you think would be enough?
@sach.ka.sath99
Жыл бұрын
@@CMCdiy 60 amp 60 amp
@CMCdiy
Жыл бұрын
@@sach.ka.sath99 Yes, it is possible, I will try in the next projects. Thank you for the advice
@sach.ka.sath99
Жыл бұрын
@@CMCdiy 20 amp BMS is 3 amp .40 amp is 6 amp 60 amp is 20 amp approx
FUCKING MUSIC
usa cola quente. kkkk é mesmo à sapateiro.