Replacing batteries for Xiaomi mi 10400 mAh power bank
Xiaomi 10400 mAh power bank was the first charger for my mobile phone. I bought it in 2014 and after 8 years of service, it is losing its power. It will die soon and will become a piece of e-waste. So replacing the dying cells with new ones is the only best solution to save this useful gear. In this video I'll show how I managed to complete the task.
技巧方法全是網上學習的，沒有什麽特別的地方，但一些體會值得在此寫下給大家參考：
1. 工具物料普及，初哥自己動手(DIY)更容易。沒有適當的工具物料，任憑你怎樣有經驗都沒法子做到。以往要自己動手便要買工具及材料，除了格價不容易外，選擇又不多。有時又要受氣。記得初哥的我，在零件鋪問了一條初哥的問題，一個鼻子特大的即時答案是’我唔識架’，那種受挫的感受到現在還未能消除。淘寶買到點銲機，T12辣雞，鋰電池及容量檢測器都是非常平宜，選擇又多，自己動手變得輕而易舉了。一年前輕便的點焊機未成熟，動手焊接鋰電池只是奢夢，今天淘寶打破了這些約束，給自己動手的開了方便之門，更打開了初哥接觸電子世界的門檻，各式各樣的舖頭任你自由出入，工具零件齊全，任你格價選擇，不需再忍受鴨寮街那獨市鋪頭不耐煩的對待。
2. 這是小米第一代的充電寶，記得是2014年，容量這麼高（10400 mAh)，價錢又不貴（約人幣90塊多），亦是我的第一個尿袋，這雙重紀念意義重大，所以這尿袋是值得保留。看視頻順利完成小米換電池，好像很容易，其實初哥拆解及銲回過程都小心翼翼，因為這些有潛在高危的電池，短路會引致著火及燒毀線路板，順利完成後那種挑戰高難度的滿足感是滿滿的。
過程不是順利的，一些解決不了的問題都要自己應付，這克服的過程就是學習成功的竅門，因為每一次的失敗都是重新學習的機會，錯誤要克服的話便要從頭開始過，不能馬虎，亦要懂得放下成見，用一段時間去思考去找尋答案。幸運的是網上尤其youtube，很多答案都是在那裡找到。
3. 這富有歷史意義的小米尿袋保留下來了，不會變成電子垃圾，這是值得的，但這並不能節省金錢，因為市場上能買得到的會平宜多些。我的DIY精神是藉著自己動手去探討問題的根源，從而了解電子器具的運作道理，不會計較時間及金錢，只是享受解決問題後成功的喜悅。對富有保留價值的器具亦只有自己動手才能保存下來了。
Пікірлер: 9
usable capacity will only be about 85% of what went into the bank due to boost converter and wire losses so about 7594mah, and it has a pretty good voltage sag under 1 amp load so u only get about 4.4v out so i would guess about 30-34WH usable capacity.
Is there issue using 2200mah * 4?
@kslam5733
2 ай бұрын
Up to now, the power bank is still working. As it is a first generation power bank, it charges quite slowly for full 10400 mAh capacity.
what's the name of the clear yellow tape ? was it worthy buying new cells ? didn't they match the price of a new power bank ?
@kslam5733
10 ай бұрын
The tape is heat resistant and so it is good to use in this temperature sensitive environment. I don't know how it is called but we call it 'gold 'tape. If you DIY, you can use quality cells. Certainly the price would be higher than those of new power banks as they would usually use cheaper cells. I used quality cells so the price is a bit higher. I enjoyed the DIY process and would not consider the price as this MI power bank is my first bank bought around 2013.
@angelgonzalez133
9 ай бұрын
Kapton
Kyun si machine Se soilding kar rahe Ho
@kslam5733
2 жыл бұрын
It is spot welding to prevent overheating the lithium ion batteries。
@Johnsmith-uc9df
Жыл бұрын
Nice work! What’s the model of the spot welder