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買左舊 M???? 代用 BC50 電俾部 Motorola K1 用, 話有 900mAh, 仲有清貨價優惠, 只賣 $45, 咪買 lor...



手痕拆一拆張 label, 睇下用左乜廠出既鋰電, 點知:s 400mAh:s



Google search DK043040, 亦搵唔到任何 datasheet 介紹(:N)

M???? 呀, 下次想粉絲扮魚翅, 就用 d 冇印明有幾多 mAh 既鋰電啦!:-@
我以後都唔會再買 M???? 既產品:-@

Edit: Wow, M???? 很好很強大, 叫個 hosting 公司 delete 張圖喎! 唔緊要, 再 upload, 再貼!


Admin: Brand Name Edited

OH

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唔駛要"威" ! 最緊要" 揚" !!

aiya... I thought M???? is good

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其實電池 "作大" 是很普遍 ........... 就算是原廠電都經常有! 不過 M???? 起個 double 就過份少少 ..............

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退一步海闊天空!

觸犯商品說明條例

哎呀,我仲以為佢係代電中既大廠,點知佢又係昆水公司,會唔會爆架老老實實~

自家製造代用電賣到黎香港上市既, 我諗只有飛毛腿. 呢間野就真係代電中既大廠啦.
http://www.scudcn.com/

但係我見有其他祖國牌子會偷薄 d 膠框, 騰空空間塞粒容量大 d 既鋰電芯甚至 LiPoly 芯落去, 容量可以做到 900-1000mAh, 又好似幾吸引, 但係又擔心安全問題.

o甘果間GOKI算唔算大廠？
係燶宅同衛記買電話送o既都係呢間D電...

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用家一名
3810>GA628>SCH-470>DB2000>SGH-A188+8210>
C401SA>SL55>K750i+W800i+W810i>?

我轉貼去其他地方, 有人質疑粒電係唔係真係得 400mAh.

參考 http://www.iaudiophile.net/forums/showthread.php?t=10538&page=7 參考 http://en.wikipedia.org/wiki/Li-ion_battery#Specifications_and_design 既計算方法,
volumetric density = between 900 and 1900 Joules / cm3
Taking the maximum, to be very optimistic, the battery would be able to store:
1900 x (0.4x3x4) = 9120 J
The energy stored in the battery = (charge stored) x (voltage at which it is stored)
so The storable charge = (Energy stored in battery) / (voltage at which it is stored)
giving:
(9120 joules) / (3.6 volts) = 2533.333 coulombs
1 Amp-hour equals 1 (coulomb per second)-hour, which is equivalent to 3600 Coulombs.
So 1 milliAmp-hour equals 3.6 Coulombs.
So the storable charge in the proposed battery would be:
2533.333 / 3.6 = 703.704 mAh
So, being incredibly optimistic, the highest you could get is 700 mAh or so.

粒 DK043040 又唔係 LiPoly 電, 經過以上非常樂觀的假設計算, 4x30x40mm 大小的鋰電芯最多只有 700mAh, 根本冇可能有 900mAh.

咁我寧愿買返飛毛腿算喇!幾抵用!

但飛毛腿

前幾日買左兩粒u636既飛毛腿代用電(@$34)
好奇怪, 舊電係厚過原裝電少少, 但係得820mAh
而原裝電反而有830mAh
而問題係, 原裝電同代用電都係飛毛腿出品
真係唔明點解

我好耐之前已經冇用代用電,因為壽命太短,基本上全部用左一年唔夠就"發漲"
加上安全問題果幾舊水真係唔慳得,買番原廠電好D