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Solder DC in directly to the connector board of Bose Soundlink 1?


I bought a Sounddock 1 Series and the Power adapter is dead. Those Adapter are expansive, and rather buying one I have a DC with same voltage +18V with 1A.

However the bos has a 4 pins connector.

Which one is positive and which one is neutral?

I have no way to test it.

Does my DC is suitable for this?

I know Bose power supply is +/- 18V 1A

Please let me know if you can help!

Many thanks

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Is the diagram of the AC adapter plug or the Bose, socket input.



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Tony, the connector is a 4 prong Molex 5.5mm square Size 5.5 x 5.5 x 6.4 mm (each four pins are separated)

Pin1 = +ve 18vdc

Pin2 = -ve 18vdc

Pin3 = GND

Pin4 = GND

As for suitability of your adapter, it depends on what you have and what the outputs are. Use a multimeter and see what you get.

Block Image

Hope this helps, good luck

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That did help many thanks!

So the adapter shouldn't be used as only provide +18V right?

so +18Vm shouldn't do the job...?

power adaptor


That is correct. You will need to come up with -ve 18V as well as +ve You could use a DC-DC converter, but by the time you added the cost for that, it may be cheaper, and easier, to use an original Bose power brick.


For anyone looking for a replacement, looks to be a Molex Micro-Fit 3.0™ Receptacle Housing, they've even got a video and a range of overmolded cable assemblies!


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The image is for the removable conector or the fixed one on the sound dock?

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Hello I have quastion about connecting battery power supply instead wall power, will use Bosch core battery 18V 6.3A so what pins I need to connect battery + and - to work correctly, this pins on speaker using + and - and ground for each looks like but battery have no grounds


@pranjilovic on a battery ground refers to the - connector. You still need to get -18V so you will still need to come up with a dc-dc converter.


Is there any converter to do job from single 18V battery to dual power +& - 18v on the other side


Simple when using two 12V batteries. Just connect the + from one battery to the - of the other battery. Then the single + from the one battery is +12V, the joint point of + and - is O V and the single - from the other battery is -12V.


John Dardemann: You are implying connecting 2x12v batteries in series. The output will be 24volts. Bose Sounddock needs 18volts + and 18volts - and Negative Ground


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Dang people. Lol. Old turkey is correct. Simpler to buy a used power supply for the Bose system. Charles Brunsdon, the reference to the two 12 vdc batteries is correct. Connect wire to positive of first battery, connect negative of first battery to seconds batteries positive. This is your floating/virtual ground. Second battery negative has a wire also. So three wires and two.batteries in series. Your first batt is positive, the middle wire connecting two batts is your virtual ground for both outputs And the negative of the second batt is your negative volts. It comes out to be +/-12vdc. Still a problem is you need +/-18 vdc. And dude asking about the chargable battery. It might be 18 vdc. But its way to much amps. Bose system is 1amp. You put 6.3 amps on it and poof. No more Bose. If your gonna mess with electricity I suggest reading up on simple things like what electricity is. Amps. Volts. Watts. Current. It's all simple but it's not something you just magically put together and it works. Electronics is about the control of electricity and all elements there in. Oh. I do have a seems simple solution for all though. Two walwarts 18vdc run them like I said with the 12 vdc batteries'll still have an issue.with turning on and off as if you leave one on alone it will damage circuitry. Figure a way to connect them to power up and off at same time and ya might be fine. But then there is another issue. They will not run exact same amount. Op amps need crisp pure highly regulated electricity to become the beasts that they are. Buy a used power supply. Joe G. There are ic s that do change polarity. Check this out. .

☮️ people. Be safe with electricity. 18 volts ain't anything when you start realizing that some circuits will kill your butt .

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