Replacment Battery for the Marshall Kilburn Bluetooth Speaker

Hello,

So I just bought a used Marshall Kilburn Bluetooth Speaker without the battery, thinking I could easily replace it on my own...little did I realize that its not that easy. Turns out Marshall doesn't even offer a repayment battery for a product they have had out for 2 yrs now. Anyhow my next idea was to find an after market one and modify it as needed, that to is a little beyond my skill level. Here are a few facts about the battery, if there is anyone that could point me in the right direction it would be much appreciated.

Marshall Kilburn Bluetooth speaker

Battery: 4x 3.7V LI-IO Batteries with a mAH rating of 2200mAh.

Here is a link to a photo of the battery along with some photos of a replacement this guy put together: http://fr.audiofanzine.com/enceinte-mult...

Here is a Battery I think could fit the bill how ever its a 2 wire vs. the 4 wire configuration of the current one. http://www.all-battery.com/li-ion1865014...

Thx

Scott

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Hey Scott, have you solved this problem?

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Not as of yet, however I think that there are batteries options out that that could fit the bill. Currently Marshall does not sell a replacement for this unit, and they have intentionally configured the their battery with a 4 wire set up to ensure that its not an easy fix. I have not cracked mine open yet to see if the 4 wire setup is made deliberately complicated and ultimately could work exactly the same with a 2 wire connector...I suspect that when I open it up the 4 wires will most likely connect to 2 spots (2 Red to one and 2 Black to the other) and if that is the case this battery would fit perfectly if you modified the internal 4 wire connector to a 2 . Heres the battery I'm thinking with cover my needs: http://www.batteryspace.com/li-ion-18650...

I'm going to open it up on the end to confirm, and I will post photos.

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Hi guys!

I just bought a used Marshall Kilburn on Ebay. It does not have a battery pack either, so im digging around looking for solutions. My seller does not have any of the PCBs from the battery packs.

Your post and pics from the French posting are very helpful! Two websites that are giving me a better understanding are this brief but great description of how 18650 li-ion batteries are wired together: http://www.tjinguytech.com/charging-how-.... The 3s connector with 4 wires looks similar to the pics of what is needed for the Kilburn. Also intruguing is this parts supplier pic of a 3s connector with 2 red and 2 black wires described as a JST-XH 3S balance connector: http://www.batterysupports.com/10x-jstxh.... That JST-XH is discussed as a popular connector in my first link. So chances are its the one. My biggest problem seems to be locating the right PCB that sits on the battery pack...

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Karl,

Did you happen to buy yours on ebay, and does it have a hole cut into the cloth? If so, thats an intentional rip made to puncture the speaker cone behind it. I know this because mine came this way. I assume it's because originally it was a return that was sent back to Marshall then resold "damaged" to a liquidator. I gather the the Speaker is sold with out anything and a punctured grill, because Marshall doesn't want to compete with its own product so they &&^& them up before sending them out. Anyhow, I'm just mentioning it because I found that the cone in mines was punctured, but fortunately it's a very easy repair.

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Yes Scott. Thats the way mine is- with the hole in the cloth. It just arrived today - after my Amazon power cable :). Tho to my untrained ear, this kilburn sounds great on the 3.5 cable. On the other hand, bluetooth connection to my phone is very spotty, volume is low or not there at all. I was not surprised by that. Maybe mine was returned for that reason? I didnt remove the speakers to check them physically, maybe tomorrow if i have time... i did contact my seller "Moonnqueen" to ask about the battery pack pcb, and they stated they "no longer "have them. I did trace the battery wire to a CN2A1 board connectorwhere both red wires join and connect to one point next to the two black wires doing the same.

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A couple notes:

1) Batteries are wired in serial, with 2 extra leads to the negative terminals of the middle batteries, I think for individual cell monitoring/balancing. I've found 14.8v, 4s1p PCBs online with a diagram of the same wiring.

2) The 2 red leads to the connector are wired to a single solder joint on the PCB, as are the 2 black leads. Same as you found inside the speaker.

Let me know if you need any other shots of the PCB.

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This is great Steve! Thank you so much! Because there is so little out there for this battery, myself and others that are trying to figure this out now have a blueprint to put together a battery that will not only work....but also more importently not fry the speaker or burn down the house.

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Scott Lauder what you have here is a battery pack. It has been build for your equipment and the PCB on top of the battery will be part of your circuitry etc. I am convinced that you will be better off to rebuild the battery and reuse the battery PCB. Looks like there are 4 TF18650 2200mAH LiPO's connected in series to give you the proper voltage. If you cut away on the black package you could see how they are connected and reuse the PCB. Of course you can also get the battery you outlined in your original question and use that to rebuild/build your battery pack. Use the cells from that one and attach your PCB to it the way it was on the old pack. Just get some heatshrink or insulation tape after to keep the cells tightly together.

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Wow!! THANKS! for the help...Unfortunately, My Speaker did not come the original battery pack so I don't have the PCB to reuse. Thought?

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Scott Lauder the PCB most likely contained the overcharge protection etc. part for the battery. Let see if we can find out more. Can you post a couple of image on where the battery plugs in and of the connector etc. The more details the better.

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Yes, it contain the PCD and is a 4 wire connector. So far this is the best option I have found that includes the PCB and is a 4 wire batt like the one in the Marshall Kilburn: http://www.batteryspace.com/li-ion-18650... . I spoke to AA Portable Power Corp today and they semi-confidently said that this may work and that they would send me the appropriate connector. I also spoke with Marshall today as well...dead end. Apparently the battery is ready to go from head office, but they have paused export until that can sort out logistics regarding I assume the safety of shipping Li-Ion....(Thanks Samsung) Heres a link to the Battery and a Hack someone tried (its French, so right click to translate: http://fr.audiofanzine.com/enceinte-mult... Beyond this, there is VERY little to be found on where to find or hack a Battery for the Kilburn.

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Yes I've visited the links before. Post some images from your connector and your board to see how it connects on your speaker. Lets see if we can get this beast going again.

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Hi folks!

I found it on Amazon:

ABC Products® Ersatz Pure Chargepak E1, VL-61898, VL-60924, VL-60896 Akku / Batterie für Pure Evoke 1S, Evoke Flow, Evoke Mio, Evoke 2S, One Flow, Sensia, Evoke Mio, Evoke Mio by Orla Kiely und Union Jack, Evoke-1S Marshall, Verona DAB Digital Radio etc https://www.amazon.de/dp/B00WBKS8W4/ref=...

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Ok this is finally the solution I found and have tried with great success:

1- I bought this battery:

http://www.all-battery.com/14.8V-2600mAh...

2- Then I bought this 4 wire connector:

http://www.ebay.ca/itm/1-25mm-Micro-4-Pi...

Pretty simple hack, I basicly just connected the red wire to the applicable 2 wires on the connecter then did the same with the Black wire, make sure to take a look at one of the photos in this thread to ensure you get the wires right. Rest assured it works great, I have had it in for about 3 weeks now without an issue, it charges well, holds the charge and does not get hot at all when charging or powering.

FYI, there are higher capacity or mAh options that fit into the Kilburn, but to be safe just stick with this 2600mAH option, it works great and is the manufacturer's chosen option.

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This replacement battery is working for me as well.

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Hey Folks,

After opening up the Kilburn Speaker it appears that their 4 wire configuration eventually comes together as a 2wire configuration deeper in the speaker, so basicly the 2 red wires come together and the 2 black come together. Bottom line it looks to be to be a case of deliberately designing it to ensure that after market will be difficult for the consumer to obtain, then creating a dependence on marshall for the replacement part...which by the way they do not offer yet...despite the Kilburn being on the market since 2015. Deliberately manufacturing product obsolescence is a $@$*!& thing to do. Anyhow, I'm going to replace the current 4 wire female connector inside the box to a 2 wire and then just pick up this battery,

If anyone tries it first, let me know how it goes, and if I get to it first I'll post the results!

Good Luck

SL

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Any news on this? I've got a Kilburn with a dead battery, which I've now disassembled. I found one of the 4 18650 batteries inside measuring 0v, but when I tried replacing it things still didn't work. I'm thinking my PCB may be dead.

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Hey Steve,

Unlike my Kilburn yours came with a battery, that's awesome because now you have a blueprint to reference, so finding a replacement PCB should be easy..and cheap. This said, I'd use a meter to confirm if the short is in fact the PCB and not the battery set up or a connection down the line.

Anyhow you're VERY lucky to have the original battery, could I trouble you to posting as many close up shots of that battery, the on board PCB and conection set ups, basically anything that could help the rest of us with out them figure out how the exact specification to DIY a replacement that will work. Honestly, and I think I speak for a few others here, photos of the parts of this battery would be SO appreciated if you have it still apart.

Cheers!

Scott

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Turns out I had it wired up wrong. I now have my pack working again with replacement cells, and just need to figure out how to package it up tightly enough to fit. Honestly that looks daunting enough that switching to a replacement pack might be the easier option, if we can figure out something that works. I'll post some photos from when I disassembled the pack.

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Unfortunately, Marshall doesn't offer a replacment for this battery...which is complet BS considering that this speaker has been out for about 3 yrs, also after looking at your battery opened up, its now clear that their 4 wire set up is also BS to make things complicated and as we now know hard to replace ...meaning that basicly if you take the battery I posted earlier and swap out the 2 wire connecter for a 4, you're good to go. Anyhow again, thanks for posting the photos they are extremely helpful.

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Found the Battery, Finally!! You'll have to traslate the site, but here it is...

http://www.86mall.com/item/544224384562....

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Found the Battery, Finally!! You'll have to traslate the site, but here it is...

http://www.86mall.com/item/544224384562....

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Scratch that, sadely this site is buggy a !&&* and makes it imposable to buy....bummer sorry to get everyone hopes up.

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Hi, here is a battery that I successfully used in my Kilburn and it works great:

http://www.ebay.com/itm/LED-Light-Batter...

Only about $19.00 from Ebay.

IMPORTANT!

*You order, use and hook up this battery at your own risk.

*If you do not have the knowledge to verify that this is the battery you need and don't know how to make this battery work with your Kilburn, do not attempt to hook it up and use it with the unit. However, so far mine works great. (Been installed for nearly 2 weeks).

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Scott, did you solved your issue?

I just bought a refurbished kilburn from amazon, and came without battery...

How did you solved it if you did??

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Yup, I put a link to the battery and the wire, and how I connected them. the post is about 2 post above this on under the name PUXHURT. Anyhow, its been about 5 weeks since I got the batterys and connected it to the 4 wire connecter and it working awesome! no heat, no lack of power nothing it juts works great. side note, it you bought yours with a hole punctured in the speaker cover mesh, its most likely to puncture the speaker, if this is the case take it apart to confirm and if so look around on youtube for video showing how to fix a ripper speaker cone. good luck.

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Hello Guzman/Scott, I was planning on getting a Kilburn myself, turns out the battery issue gets pretty messy. Just wanted to know if we can still plug in the speaker to a power source and use it even if the batteries are dead.

Thanks.

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Yup, easy works fine...however it is nice to take this baby out with ought the leash.

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Thanks Puxhurt, that's good to know!

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Puxhurt,

I bought the connector on your link, but the one that came was tiny- about one half the size of the receiving end in my Kilburn. I havent yet contacted the chinese supplier. Maybe they shipped the wrong part? Or did you post the wrong part?

Thx for all the help!

K

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Scott will be eternally grateful.
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