RC Slope Soaring in Hong Kong
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A123 battery system
http://www.rcsail.com/forum/viewtopic.php?f=3&t=1021
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Author:  K.Y.Mak [ Thu May 31, 2007 7:20 pm ]
Post subject:  A123 battery system

This is the new powerful battery which have no danger of explosion like the Lipo ones:
Image
http://www.aircraft-world.com/shopexd.asp?id=5041

They are 3V batteries. Is it possible to use them directly as a 6V receiver battery pack ?

Author:  CM Cheng [ Thu May 31, 2007 7:48 pm ]
Post subject: 

High capacity :)
Fast charging :D
High discharge current :lol:
3V per cell :o
Long life 8)
Safe :P
Light weight :lol:

Seems very goooood !! Lets get some and test.

Author:  Yeung [ Thu May 31, 2007 7:55 pm ]
Post subject: 

Seen at Lomcovak site already. Yes it is powerful and some pylon flyers in Hong Kong have already used it. Seems ok!
By the way, weight for a 6~6.6V 2 cells pack is aroound 140g+, our current 4 cells RXbattery is 100~120g.

Author:  K.Y.Mak [ Thu May 31, 2007 8:26 pm ]
Post subject: 

Yeung wrote:
Seen at Lomcovak site already. Yes it is powerful and some pylon flyers in Hong Kong have already used it. Seems ok!
By the way, weight for a 6~6.6V 2 cells pack is aroound 140g+, our current 4 cells RXbattery is 100~120g.


We have to put lead in the nose anyway.
The best thing is they can keep their power for extended period.
:o (3 years storage with <3% capacity loss)

Ah Kin, that should be able to save you a few Race-M 8)

Author:  CM Cheng [ Thu May 31, 2007 11:24 pm ]
Post subject: 

Yeung wrote:
Seen at Lomcovak site already. Yes it is powerful and some pylon flyers in Hong Kong have already used it. Seems ok!
By the way, weight for a 6~6.6V 2 cells pack is aroound 140g+, our current 4 cells RXbattery is 100~120g.


They are 6V battery, and so we should use 5 cells pack to compare :D

100~120g *5/4 = 125~150g :o

Author:  Y C Lui [ Thu May 31, 2007 11:47 pm ]
Post subject: 

實亭呢D係咩野電黎架 ﹖化學成份係也 ﹖

仲有我想問下最近開始流行話唔會走電果種 NiMH 電到底係咪可以用普通 NiMH 差機差既呢 ﹖ 會唔會爆炸既呢 ﹖

Author:  kin [ Fri Jun 01, 2007 12:13 am ]
Post subject: 

仲未知電壓太底点樣保護佢,底過2.9v-2.8v,會唔會整死D電,如果一般鋰电用底過2.6,已經瓜咗!!接收機可能底到4.2V-4.5V先至失控,所以鋰电用於接收又冇WARNING 系統,其實好危險!!电壓在2.8V以下,跌得非常快,我一定唔會用!!睇定D好D!!!!!!

Author:  Yeung [ Fri Jun 01, 2007 7:28 am ]
Post subject: 

Dear YC,
The Sanyo's Enneloop Nimh works great. I have been using it for 4 months. Just use normal Nimh charging equipment. They are a bit lighter than the old Nimh, say 10g for a 4 cells AA RX pack.

Author:  K.Y.Mak [ Fri Jun 01, 2007 9:29 am ]
Post subject: 

Y C Lui wrote:
實亭呢D係咩野電黎架 ﹖化學成份係也 ﹖

仲有我想問下最近開始流行話唔會走電果種 NiMH 電到底係咪可以用普通 NiMH 差機差既呢 ﹖ 會唔會爆炸既呢 ﹖


A123 成份係 LiFe

Author:  K.Y.Mak [ Fri Jun 01, 2007 9:49 am ]
Post subject: 

kin wrote:
仲未知電壓太底?樣保護佢,底過2.9v-2.8v,會唔會整死D電,如果一般鋰?用底過2.6,已經瓜?!!接收機可能底到4.2V-4.5V先至失控,所以鋰?用於接收又冇WARNING 系統,其實好危險!!?壓在2.8V以下,跌得非常快,我一定唔會用!!睇定D好D!!!!!!


我就唔等啦!
呢隻電我巳經留意左幾個月,只係未?到方便買既地方。(極之睇好呢件產品,所以重??有關生產商既資料。可惜係美股,否則就已經入重貨!)

昨晚上 Aircraft-world 睇到廣告就第一時間同大家講。同時 order 左兩件返黎試。
用得好既話,會將我全線 F3F 機隊換電 : )


Image

用黎做接收,我打算將底點定係 6V。咁就極之安全啦

Author:  CM Cheng [ Fri Jun 01, 2007 4:31 pm ]
Post subject: 

[quote="Y C Lui"]實亭呢D係咩野電黎架 ﹖化學成份係也 ﹖

. . . .quote]

Check this: http://www.a123systems.com/newsite/index.php#/home/ :!:

Author:  Y C Lui [ Fri Jun 01, 2007 8:13 pm ]
Post subject: 

5 分鐘差滿﹐100C pulse, 35C continuous. 長壽安全﹐勁 ﹗ :shock:

完美程度近乎虛假﹐呢D電實庭有無缺點 ﹖

Author:  Y C Lui [ Fri Jun 01, 2007 9:29 pm ]
Post subject: 

仲有想問下點差﹐佢話

3A to 3.6V CCCV 45 min
10A to 3.6V CCCV 15 min

Author:  hendry [ Sat Jun 02, 2007 12:29 am ]
Post subject: 

E+ 有D义機係义到A123
雷記

Author:  K.Y.Mak [ Tue Jun 05, 2007 9:10 pm ]
Post subject: 

到左啦 :D

原來 A123

Author:  CM Cheng [ Wed Jun 06, 2007 1:01 pm ]
Post subject: 

Hi Mak,

FYI: http://www.rcgroups.com/forums/showthread.php?t=695095

Author:  Tsz Ming [ Tue Jul 17, 2007 7:45 pm ]
Post subject: 

http://www.windrider.com.hk/products/product.cfm?id=19

Author:  Ah Pong [ Wed Aug 01, 2007 10:43 pm ]
Post subject: 

:D :D


Copy from Appledaily:- (using A123 system)

web tech : 鋰 電 電 單 車 時 速 251 公 里杜 布 ( Bill Dube ) 設 計 的 電 單 車 堪 稱 「 終 極 戰 車 」 , 時 速 高 達 251 公 里 , 從 靜 止 加 速 至 時 速 96 公 里 不 用 一 秒 , 比 其 他 電 單 車 快 得 多 , 最 重 要 的 是 , 它 不 靠 汽 油 推 動 , 能 量 來 自 鋰 離 子 ( lithium-ion ) 電 池 。



快 過 汽 油 鐵 騎
終 極 戰 車 KillaCycle 的 兩 個 引 擎 達 350 匹 馬 力 , 由 990 個 鋰 離 子 電 池 推 動 。 車 手 波 拉 積 只 用 了 8.22 秒 , 便 駛 出 402 米 , 雖 然 未 是 世 界 最 快 紀 錄 , 但 KillaCycle 今 年 12 月 會 換 入 第 二 代 鋰 離 子 電 池 , 屆 時 馬 力 會 接 近 1,000 匹 , 速 度 更 快 。 專 家 估 計 , 電 池 推 動 的 電 單 車 經 不 斷 改 良 , 五 年 內 就 可 以 挑 戰 電 單 車 手 現 時 保 持 的 各 項 世 界 紀 錄 。



Image

:shock: :shock:

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