HOW TO FIX CORDLESS SCREWDRIVER | FIX BLACK DECKER SCREWDRIVER | REPAIR BATTERY SCREWDRIVER
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- เผยแพร่เมื่อ 17 ก.ย. 2024
- In this video, I explained that HOW TO FIX ELECTRIC SCREWDRIVER | FIX BLACK DECKER SCREWDRIVER | CHANGE RECHARGE BATTERY OF ELECTRIC SCREWDRIVER. My Black Decker screwdriver got some problem and it was not working. I disassemble the screwdriver and found that recharge battery of 1.2v of 4 battery was the problem. They are not getting charged. I have changed with 1 18650 battery with BMS ( Battery management system ). It is lithium ion battery of 3.7V. The screwdriver working with low volt of 3.7v instead of 4.8v. Thank you and like, share and subscribe.
Very good 🎉😊
Thanks
Hello: thank you for the video.
Do you have how the wires are connected? In some videos they show but since there are only 2 colors it is not easy to find out which cable goes where. Please inform. Thanks
Sir, wii it not effect the motor for low voltage
No. Even 1.2 V Batteries also after few use comes below 1V. Total battery power comes below 4V also the screwdriver will work. The nominal rating for aa 18650 battery is 2850 mah, or 2850 milliampere hours. Translated into ordinary lingo, that's 2.85 ampere hours. This means that it can provide 2.85 amps for 1 hour. High volt will affect the circuit board of the Screw driver.
But if u use only one battery of suppose 3.7 v 1000mah ur screwdriver will not get the proper rpm/ torque as its getting earlier when its using 3.7 v 600mah ×4 i.e 3.7 v 2400mah ,hence u should use 4 or 2 lithium ion batteries of same size and volt which are used in ur screwdriver originaly ,only u should increase the mah for eg 3.7 v 4000mah or so( use 3.7 v batteries in parallel to increase the mah).
The nominal rating for aa 18650 battery is 2850 mah, or 2850 milliampere hours. Translated into ordinary lingo, that's 2.85 ampere hours. This means that it can provide 2.85 amps for 1 hour, So there is no problem about torque and there is no place to use 2 lithium ion batteries.