99 yuan three-mode hot-swappable bike - pure record, my JJK84 battery replacement journey.

Hello everyone, I am Tiantian.

This article is a pure record of life, so the writing style is more casual, please don't mind.

Is such that.

I am about to start school, and I urgently need a new keyboard. Some time ago, this jjk84 was super popular on station b. You can enjoy three-mode hot-swap for 99 yuan, and I quite like his frosted transparent case and single white backlight design. .

In the end, I bought one for 109 yuan.

(Some people may be curious, why your title said 99 yuan, but it cost 109 yuan.

That's right, I installed LED lights for 10 yuan, and the 99 yuan one doesn't have lights. )

A few photos first.

Anyway, looks okay.

However

The original battery is very small, only 200mAh, which is obviously not enough for a keyboard with backlight.

So I upgraded him to 4000mAh.

Now that the battery is changed, there must be no way to disassemble the phone, so. . .

work! ! !

The upper shell is fixed without screws, and has a buckle design.

And it's not very tight, just pull it out with your hands.

Then there are the screws.

Then the circuit board of the keyboard came out.

But you can't use force here, after all, you are still pulling the power cord connected to the battery.

After unplugging, you can take a full view of the keyboard.

The master controller customized by feker, on which you can faintly see the silk screen of FEKER.

2pin power socket, and the hot-swappable socket next to it.

Here is a close-up of CIY's hot-swappable shaft seat.

Let's look at the battery again. Hidden under the black cloth is our small battery.

402030, 200mAh, 4mm thick, length and width are 2cm and 3cm, really small.

Comparing it with the 606090 4000 mAh battery I prepared, it looks like a big deal hahahaha.

It fits just right.

Plug it in.

Then follow the above steps to install it back.

The keyboard is done! ~