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Repairing Any laptop battery - Li-Ion cell replacement

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  1. Repairing Any laptop battery - Li-Ion cell replacement, Identifying dead cells: 1 단계, 이미지 1/3 Repairing Any laptop battery - Li-Ion cell replacement, Identifying dead cells: 1 단계, 이미지 2/3 Repairing Any laptop battery - Li-Ion cell replacement, Identifying dead cells: 1 단계, 이미지 3/3
    • Caution: Lithium-ion batteries can catch fire or explode if they are damaged or short-circuited—especially when they are charged. Be extremely careful not to bend them or short-circuit them with your probes.

    • Battery pack works by putting individual cells in parallel / series. Each cell has a nominal voltage / capacity and they are put together to give the whole battery pack it's global voltage / capacity.

    • Here we have a 3s2p battery pack. This means that you have 3 serial attached blocks of 2 parallel cells.

    • The lefmost block seems dead, the cells reads a steady 0 volts on my multimeter.

    • The 2 other block show ~3.6 V which means they are still alive, great !

    • I haven't tested individual cells from the 2 working blocks for a good reason. This battery pack has been stored for several monthes, if only one cell in the block was dead, the other (good) one would have discharged in it until it also dies ( which is what must have happen in dead block )

  2. Repairing Any laptop battery - Li-Ion cell replacement, Replacing the dead cells: 2 단계, 이미지 1/2 Repairing Any laptop battery - Li-Ion cell replacement, Replacing the dead cells: 2 단계, 이미지 2/2
    • Here I have 2 scrap 18650 cells form another dead battery pack. They are still charged but I have no fear has the battery electronics will balance the charge levels later.

    • After this step, reassemble the pack and everything should be fine.

    • Remember that this a dirty fix and you should consider the repaired battery pack as NOT SAFE

결론

Pour réassembler votre appareil, suivez les instructions dans l'ordre inverse.

다른 22명이 해당 안내서를 완성하였습니다.

Damien Leflon

회원 가입일: 12/27/15

625 평판

안내서 1개 작성함

댓글 7개

Salut, je pense changer toutes les cells dans ma batterie de laptop morte. J’ai actuellemt 6 x Samsung 26H. Est ce que je peux installer plus puissant ? Des LG HG2 18650 3.7v 3000mAh 20A High Drain Flat Top par exemple ? pour augmenter en duree et de vie de la batterie de mon laptop. Merci.

Red B - 답글

Bonjour Red B

Je ne sais pas comment fonctionne votre chargeur de batterie

CC (courant constant), CV (tension constante) ou CC-CV (tension constante avec courant limité).

Le premier (CC) prendra un peu plus de temps pour charger votre batterie.

Le HG2 est également un millimètre plus grand que le 26H.

Ci-joint deux liens vers leurs fiches techniques.

http://grobotronics.com/images/companies...

https://www.18650batterystore.com/v/file...

le HG2 est légèrement plus robuste que le 26H.

Bonne chance;

Homer 82

Delrue Dominique - 답글

What will be considered a clean fix?

dkorablev - 답글

Sir, usually battery packs are hermetically sealed with glue, though it is not impossible to open the case. Still, it is time-consuming to separate the two plastic portions of the case. Kindly suggest how quickly I can open the battery pack and oblige. Often BMS is faulty kindly advise whether the BMS are interchangeable?

Best Regards

Dr P K Maitra BHILAI, INDIA dipalyconsultants@hotmail.com

dipalyconsultants - 답글

Hello.

I don't have any experience yet, but I've found out that you can open the involucre that seals the battery with banana oil.

Leandro -

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