This content comes from @What's worth buying APP, and the views only represent the author's own |Author: Value Friends 3078295338
I kind dug a hole for myself and jumped in
Then I continued to dig in the pit, and the more I dug the hole, the more I felt...
The reason is that recently to punch holes in the tile to install two surface-mounted socket boxes, the tile is uneven with glue has been falling off, thinking about just a few holes, looking for a master to play, so a few holes, it is estimated that no one comes, just think about buying an electric drill to punch holes yourself.
Xi inertia to ZDM search for hand drills is not a good price
Just after Double Twelve, I didn't see any good prices, and I found a bunch of articles recommending hand drills.
Just look, look
I saw the article about the male model brushless hand drill that everyone bought
It's all about buying a bare metal and then matching the battery yourself
Mix it up and make it easy to use
Some of them recommend buying a battery that the player has assembled
Some recommend the oneself battery
It may be that I have been idle recently, and I chose to group the battery by myself..
I bought the EVE battery recommended by several brothers in the comments
Thinking that he didn't have a welding machine, he bought a battery pack welded by the store
I found an NTC temperature controlled circuit board
Then I bought a 16.8V charger
Of course, I also bought a bare machine with a hand drill that was cheap
I started waiting for the courier to arrive
~~~~~~~~~~~~~ a few days later
Wait until that's down there
Hand drill bare machine battery pack parts charger family photo
Isn't it very good to assemble the circuit board of the battery and the battery to solder together
Although the soldering iron has been used once or twice, it doesn't look difficult at all
However, the slap in the face came quickly
I found that the position of the nickel plate left by the soldered battery pack in the store I bought was different from the position of B, B➕ and➖ B2 on the circuit board I bought
This time it is not friendly to the use of electric soldering irons
Bought spot welded 16.8V battery pack and circuit board
Headshot of the battery circuit board after unpacking
The pit you dug yourself, even if you can't weld it, you have to finish it while kneeling, so you can do it slowly
The welded battery is not assembled into the plastic sleeve of the battery
Cut off the plastic at the position of the nickel stopper
It seems to be the same with or without adding barley paper, but the ones who sell circuit boards have been sent, so let's stick it
Place the re-soldered nickel sheet on the B B➖ B2 on the➕ pair of batteries and the circuit board
It took a few times to solder a new piece of nickel back and forth, and it must take two seconds to be proficient
The solder joints are too ugly, so I won't cover them up for you
A photo of the circuit board and battery after they are assembled together
Finally, there was a prototype
The battery is packed into the hand drill
I don't know if the battery has been soldered by myself
With a nervous heart, the battery pack that has not yet been installed with the back half of the shell
Stuffed it into an electric drill and tried it
See the lights come on, the lights come on, the lights come on
Just be happy, be happy, be happy
Complete battery pack
If there is a next time
That will definitely still form its own battery pack
It's not that the finished product isn't fragrant enough, but it's fun to toss
Of course, this is a blind toss
After all, if you are a skilled hand, you can definitely get it in a minute
I've been a clumsy man for a long time
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