2019-07-07 Upgrade Battery Powered Screwdriver



Content
1Upgrade Screwdriver 1
1.1Problem: 1
1.2Solution: 1
2Construction 2
2.1Step 1: Open screwdriver 2
2.2Step 2: Add jack connector 2
2.3Step 3: Fix the jack 3
2.4Step 4: Reassemble 3
3Conclusions 4


1Upgrade Screwdriver

1.1Problem:

The Ni-Cd batteries of my screwdriver have high discharge rate and are always down when I need to use it.

1.2Solution:

Add a jack connector to the screwdriver so that it can be powered directly by a 19V laptop grade power brick when it's used inside the lab.

2Construction

2.1Step 1: Open screwdriver

Open the screwdriver


2.2Step 2: Add jack connector

Add a jack connector to the battery sliding contact so that the screwdriver can be powered by both.
Test the screwdriver to make sure the add on works.


2.3Step 3: Fix the jack

Make an hole in the skin of the screwdriver and fix the jack in position while ensuring the cables are routed correctly and are not pinched.



2.4Step 4: Reassemble

Reassemble the screwdriver. Check that the jack is fixed in position and works.


3Conclusions

With this add on, the screwdriver can now be operated with a standard laptop grade power brick, removing the downtime due to charging the Ni-Cd batteries.
As bonus, the screwdriver is a lot more powerful under external power.




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