2017年4月3日 星期一
2017年4月1日 星期六
2017年1月30日 星期一
[TED E-BIKE DIY] Making cheap E-bike battery
I find the E-bike battery is too expensive so I try to make one.
This picture is the previous_test_version battery but not stably enough
Now I make the new version battery.
-First, the Li-ion battery buy from the taobao, it is very cheap. (18650 2400mah 5C 3.6V Lion 6.5 CNY/PCS)
-Putting all battery into 18650 bracket. If feel setup difficulty. You can use soft hammer haha
-Watch out!
1.The electric potential difference should not exceed 0.05V.(boooom😛)
2.When you do the spot welding ,don't short the battery it will explosion💥
-Staring spot welding process by self making spot welder.
-Finish the spot welding , setup and solder the battery protector to the batteries.


-Finally, Using the thermal film to package the battery

-COMPLETE! HAHAHA💥
This picture is the previous_test_version battery but not stably enough
Now I make the new version battery.
-First, the Li-ion battery buy from the taobao, it is very cheap. (18650 2400mah 5C 3.6V Lion 6.5 CNY/PCS)
-Putting all battery into 18650 bracket. If feel setup difficulty. You can use soft hammer haha
-Watch out!
1.The electric potential difference should not exceed 0.05V.(boooom😛)
2.When you do the spot welding ,don't short the battery it will explosion💥
-Staring spot welding process by self making spot welder.
-Finish the spot welding , setup and solder the battery protector to the batteries.


-Finally, Using the thermal film to package the battery

-COMPLETE! HAHAHA💥
自行車改裝電動輔助自行車 DIY (2)- 18650 3.6V 鋰電池組 組裝
這是先前試做第一個版本電池採4並7串,有電壓表以及溫度表
不過這個版本亂做的所以用起來怕怕的XDD
所以又做了一顆新的,剛好可以順便和原先電池串聯,測試48V馬達。
-首先使用的是再掏寶來的 18650 2400mah 5C 3.6V鋰電池 6.5羊/顆
-把支架裝上去,有些支架會有點卡,用橡皮槌慢慢地敲進去就好,不要敲到電池BOOOOM
-在開始焊接前有幾點要注意的
1.各顆電池電壓差建議不要超過0.05V,電壓差太快會導致電池對電池充電,就可以看煙火了BOOOOM!
2.點焊的時候注意,不要不小心把電池焊成短路迴圈了,會爆炸燃燒 會爆炸燃燒 會爆炸燃燒!
可以先加個標示,確認串連的路徑。
3.建議有相關經驗的再自行焊接,請做好各種意外的準備,出事情後果自行承擔σ`∀´)σ
-電池都裝好後,就可以開始點焊啦!有點焊機當然最好,不過一台也不便宜,所以用變壓器自製的簡易型點焊器進行焊接,點焊的時候壓緊一點會比較好,這一台是用腳踩開關。
-都點焊好了後,就要開始安裝最重要的部分了,就是電池保護板,可以防止電池過度充電、短路和過度放電...等,可以提升安全性,連接圖通常跟賣家要就有了,這裡就不貼出囉。

-焊接完之後,就使用熱縮封膜將電池組包起來,在熱縮膜上挖洞方便電線穿過,最後用熱風槍或是吹風機都可以。

-最後成品,看起來比上一個版只用水電膠好多了XDD
電池組大概就先做這樣了,有時間再把它裝進盒子裡😝
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