Beolit12 battery replacement / upgrade?

24 replies
BI
bigbruggsy
Bronze
162 posts
Posted December 12, 2019 at 21:24 GMT
#2130566

Hello all, almost a year ago I bought a cheap beolit12 which had a battery pack that would not hold charge anymore. This didnt bother me as the unit stayed mostly in the kitchen plugged into the wall.

But now I feel the need to give this beaut little speaker some freedom.

I've opened up the battery pack (quite messily I must admit, as i wasnt sure where the internal components were situated inside) And may have permamntly damaged the circuitry (using the knife I used to cut open the plastic housing)

My first question is

Can you even buy a new Beolit12 battery pack? and if so where?

Second one is , have I damaged mine ? please see photo attached

And third, if I havent damaged mine can I replace the original battery cells with something with a much higher capacity, but with the same physical size, voltage etc.

Something like these - linklink

Panasonic NCR18650B 3400mAh 3.7v Li-ion MH12210 ...

I look forward to you replies.

BI
bigbruggsy
Bronze
162 posts
Posted December 15, 2019 at 12:18 GMT
#2130567

No one has ever found a replacement battery pack online? or even rebuilt one themselves?

matador
matador
BronzeModerator
2425 posts
Posted December 15, 2019 at 13:52 GMT
#2130568

Hi,

I'm not an expert here but as nobody answered yet, here is my experience…

If the whole form factor of the battery is still intact or close to (i.e the battery still fit into is compartment), then yes you may rebuilt the battery with individual spare cells. You must be able to find the original cells reference on your original battery, just google any marking you'll find on it. Keep any other component such as thermal sensors or anything and and keep a good reference of any internal wiring.

Soldering that king of batteries may be difficult but not impossible. And of course once done, I'll would keep an eye on the device and never let it plug alone without surveillance for a certain period. Just in case…

I've done that several times with Beo6 battery (it's quite common) and have heard about various battery reconstruction without any problem.

Hope it helps.

Location: Paris France

Leosgonewild
Leosgonewild
Bronze
2612 posts
Posted October 31, 2020 at 06:14 GMT
#2130569

I will take a better picture today.

I opened it up yesterday, and sent a request for batteries from a local store.

The batteries are:

cgr18650cg li-ion mh12210

The battery pack has 4 batteries, and the pack has a rating of 14,4V /3000mAh/28,8Wh

According to the local store they are Panasonic.

I’ll upload I picture showing how the wires are connected later today.
matador
matador
BronzeModerator
2425 posts
Posted October 31, 2020 at 10:05 GMT
#2130570

Full Specs

Location: Paris France

A(
Amonra009 (archived2)
Bronze
5 posts
Posted October 31, 2020 at 14:11 GMT
#2130571

[View:https://photos.app.goo.gl/HeD2U3g6Rkczuknk8:800:0]

did I understand correctly?

A(
Amonra009 (archived2)
Bronze
5 posts
Posted October 31, 2020 at 14:12 GMT
#2130572

A(
Amonra009 (archived2)
Bronze
5 posts
Posted October 31, 2020 at 14:19 GMT
#2130573

matador
matador
BronzeModerator
2425 posts
Posted October 31, 2020 at 16:41 GMT
#2130574

Amonra009 wrote:
did I understand correctly?

No, I beleive:

The blue and maybe black wires seems to go to the thermal sensor stuck with the white paste. I've seen this in Beosound 3 battery as well.

It worth waiting for the detailed pics of Leo to have the correct wiring. 

Location: Paris France

DA
dahiyas
Bronze
186 posts
Posted November 1, 2020 at 05:59 GMT
#2130575

Matador..you are right about the thermal sensor and wire colors.

I have replaced these on multiple beolit 12's. The only recommendation will be to get batteries with tabs if possible until and unless you have a spot welder handy.

Also, be careful when putting the battery cover back. Couple of years when I did this for the time, when closing the battery cover, I saw smoke. The battery was not yet connected to the beolit. When closing the cover, one of the wires got pinched between the cover and one of the battery tabs and that created a short. The wire became hot and the wire shielding melted and there was smoke. Luckily nothing was damaged. So learnt the reason why the wires were below the white glue in the middle. 🙂.

This is what I have used in the past - 

My B&O Icons:

BeoCenter-9500.png BeoCenter-9500.png
Beoremote-Beo4.png Beoremote-Beo4.png
Beovox.png Beovox.png
Beovision-11.png Beovision-11.png
Beovision-10.png Beovision-10.png
Beotime.png Beotime.png
Beosound.png Beosound.png
Beosound-Essence.png Beosound-Essence.png
Beosound-9000.png Beosound-9000.png
Beosound-4.png Beosound-4.png
Beoremote-One.png Beoremote-One.png
Beoplay-Beolit17.png Beoplay-Beolit17.png
Beoplay-A9.png Beoplay-A9.png
Beoplay-A8.png Beoplay-A8.png
Beoplay-A2.png Beoplay-A2.png
Beoplay-A1.png Beoplay-A1.png
Beomaster.png Beomaster.png
Beolit.png Beolit.png
Beocenter-2.png Beocenter-2.png
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