Make a solar mini sound system (P***-Speaker)

This instructable shows how to power a mini amplifier with a solar cell and save batteries. It's perfect to use when you're outside and want to hear music. It will play all day long, except the night! ;-)

 The mini speaker was given away as some kind of promotion from a famous potato chips brand. You had to send in three cap lids and got an amp free. But I guess there are a lot of similar amps on the market, so if you didn't get one of those, get another one...

 You need a mini-speaker
a solar cell 4,5V 80mA (the bigger the better)
an empty chips box and a bit wire and a soldering iron.

Step 1 Unscrew the battery housing

There are two ways to connect the solar power to the amp. The first is straight to the springs in the battery housing. This is very easy, you don't have to open the housing, but the disadvantages are: The cable is inside the box and you can't use batteries once you soldered cables to the springs. If you don't solder the cables but use clamps, the whole thing looks rather sluggish.
This is why I chose to open the housing. And of course also to see what is inside. ;-)

 So unscrew the three little screws on the side of the housing. Then carefully lift up the upper part. Be careful because there are short cables connecting the two parts! As seen in picture 3!

 The last picture shows the heart of the amp: The LM4871 amplifier-IC, but that may be a theme for another instructable.

For now on we continue to power it by a solar cell.

Comments

[R.A.T.M]

i have 6 of the speakers kinda hard to get them tho cuzz your only soposto get 1