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5

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  • Battery
  • 5 steps

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Introduction

Speaker not turning on? This guide will help you replace the battery of the Bose Soundlink Mini II.

Note: Removing and reinstalling the battery requires the use of a soldering iron and a lot of careful disassembly. It is also necessary to download a specific type of proprietary software called ‘Polycomm’ and to follow the Bose technician’s repair instructions provided to them by the company. Extremely difficult to source such software, let alone the instructions.

What you need

Step 1

              Battery
  • Flip the speaker over onto its back.

Flip the speaker over onto its back.

1024

Step 2

              Remove the rubber base
  • Gently remove the rubber base from speaker by pulling around the edges.

Gently remove the rubber base from speaker by pulling around the edges.

Step 3

  • Remove the four 6mm T9 Torx bit screws from the corners of the battery.

Remove the four 6mm T9 Torx bit screws from the corners of the battery.

Step 4

  • Carefully lift the battery from the side nearest the four gold contact pins, but don’t try to fully remove it yet.
  • At this point, the battery remains connected via four wires to the power supply board.
  • Carefully desolder the four wires from the power supply board in order to completely detach the battery. There is very little room for the soldering iron without damaging the case or the board; you may want to remove the board first.
  • For help with soldering, see the soldering guide.
  • Alternatively, you may remove the battery and power supply board together, without any soldering, but access requires some additional disassembly while carefully leaving the battery connected via the wires the entire time.

Carefully lift the battery from the side nearest the four gold contact pins, but don’t try to fully remove it yet.

At this point, the battery remains connected via four wires to the power supply board.

Carefully desolder the four wires from the power supply board in order to completely detach the battery. There is very little room for the soldering iron without damaging the case or the board; you may want to remove the board first.

For help with soldering, see the soldering guide.

Alternatively, you may remove the battery and power supply board together, without any soldering, but access requires some additional disassembly while carefully leaving the battery connected via the wires the entire time.

Step 5

Bose Technicians Instruction Manual: https://riverparkinc.com/wp-content/uplo…

To reassemble your device, follow these instructions in reverse order.

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                    Devon

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                                            17 Guides authored

Timo Bernhard - Jul 24, 2017

Reply

3 Contributors and none of them know how to remove the battery, brilliant… Honestly if you want to do this right, do it right from the begining. The battery is connected with a cable to the device, please explain how did you remove it properly.

Christoph Jeschke - Aug 3, 2017

Hey Timo,

no, there are just two different battery versions of the Soundlink Mini 2: One without a cable from the battery to the PCB (as shown in this tutorial, i think this is the older version of the Soundlink Mini2) and one with a cable…

I have one here with a cable and I?m desperate to find a new battery for it but cant find it anywhere on the net... Im thinking of trying a battery without the cables and try to connect four cables to the battery and then solder them to the PCB…

Thomas Amsler - Nov 21, 2017

Reply

But how do I disconnect the battery having a cable?! - That’s actually the hard part.

Onno - Aug 15, 2019

You will have to take out the mesh on front and back. Then take out screws on speakerssside. The smalle print can be taken out then and you have to solder the battery. Just done this, and not a easy job.

Bronx - Dec 9, 2017

Reply

If you have the Soundlink  Mini 2, you can send the battery to Bose and they will rebuild it for $75. It is not user replaceable, although if you are electronics savvy you can remove it.

Problem is there are no replacements out there, and these batteries have a control board soldered to the battery with a ribbon cable. This will require soldering and unsoldering if there was a battery replacement for it. This also requires taking the entire Soundlink Mini 2 speaker apart to remove the board and battery.

If you send the battery to Bose expect a 3 to 6 week turn around for a return, which includes about 10 business days of shipping both ways as its a Lithium battery and can only travel ground. Plus the $75 for the repair as mentioned earlier.

They really did a wonderful job in limiting your options on this item.

Bose Hold this L for us as in Losers!