[shingolkw]

用乜放電器？大約幾錢？

[kris_lck]

我照差的~~xxdd
唔知會唔會好易壞呢~~

[loyukfai]

Li-Ion, NiMH和NiCad是沒有所謂的記憶效應, 不用"放電". 但電池本身隨年日和日常使用會變弱, 而且也有有限的充電次數(NiMH通常好像是300-500次).

[CatCloud]

我地愛爾蘭充電電池都成千五次喎。

我地已經放棄放電架啦，第一會整壞電池。

我地既技術世界首創 就係 用充電器內置既 CPU 黎計每粒電池既化學成份，同本身電量，然後再充。

例如，粒電用淨 40%，個充電器只會充 60%，用疊上去既方式黎充電。

[loyukfai]

Interesting, the page http://www.hahnel.ie/index.cfm?action=displaybatterygroup&mbid=94 mentioned a max. charge cycles of 600 times and yet you claim a figure more than 2 times than that?

Also, pardon me I can't find any reference to "CPU" and the other "technology" you mentioned on the site too.

There's the usual minus delta V charge control used in many fast and quick chargers, though.

3hrs charge time is a little bit on the long side, too. Quite a few chargers on the market can fill up 2000mAh NiMH cells in an hour.

If I recall correctly, the newest GP charger has an internal fan too.

Ref: http://www.hahnel.ie/index.cfm?action=viewcharger&cid=19

[CatCloud]

你唔係第一日用充電池丫。
快充同慢充既電量係唔同架。
你要快充，1 小時都太長，我可以搵部20 分鐘都有。
不過粒電夠唔夠電量同粒電池可以用幾奈。

GP 人人都話用得奈電量不足架~~~

我大把客都係咁講啦。

[loyukfai]

You haven't responsed to the other points such as 1600 charge cycles and "CPU" stuff.

If you do have something to say I'm willing to listen but otherwise I think this thread has played out pretty clear who's talking what and I hope one would not resort to personal attack to make his ground.

I'm sorry if I've said anything incorrect.

[tommythumb]

仲有，個網話係德國廠！同愛爾蘭有乜關係？

如果真係德國貨，我有興趣，愛爾蘭就唔使預我。

[CatCloud]

德國同愛爾蘭有乜分別？

[tommythumb]

德國有唔少產品都好先進，汔車、電器等在國際上享有盛名！！

愛爾蘭有乜產品係國際馳名？

[tommythumb]

做乜要 pm ？你無啦啦講到法國做乜？好似講緊愛爾蘭同德國?！！

我話德國d汔車同電器都好先進，無話佢最叻！！法國當然亦好先進。

咁愛爾蘭有乜野叻？充電池？？

[kenneth_sin]

你地講乜呀?
睇到我眼都突...

NiCad有記憶效應, 應放電..
Li-Ion, NiMH無..

另外,慢速除左慢之外,
對粒電來說,好過快速充...


"粒電用淨 40%，個充電器只會充 60%"
呢個真係奇聞

[CatCloud]

英國愛爾蘭 Hahnel快速充電器連充電池（2A/3A可用）

英國愛爾蘭 Hahnel高速充電器
充電器無放電設計，實用輕巧，電池始創分色標籤,分辨已充及未充電池，可循環再用800次。
配備4粒2100mAh 2A電池，可同時於2小時?充足4粒2A 2100mAh及4粒3A 800mAh電池
內置晶片，根據電池表現及壽命自動調節以達最高效能。
獨立紅色訊號燈號以顯示充電情?, 閃一下 - 已充25%, 閃二下 - 已充50%, 閃三下 - 已充75%, 不 閃 - 已充足100%
充電時間: 2000mAh - 120 分鐘, 2100mAh - 126分鐘, 2350mAh - 135 分鐘
3A電充電時間為2A一半
電壓: 100V - 240V

[loyukfai]

AFAIK, the so called "memory effect" is an urban myth, do a search on the Net and you'll find plenty of discussions about it.

And I mean not those fishy claims made by manufacutrer or sellers of rechargeable batteries and chargers without any explanation.

In case you're too busy to do the search (but still got a few minutes to read):

"'Memory effect' is now used as a general term for anything that makes a battery not deliver its full capacity. What the term originally referred to, though, is a phenomenon that's probably never actually been observed in consumer hardware.

True memory only happens in sintered plate NiCd cells (which aren't necessarily the sort of NiCd you're using, and are of course completely different from any kind of NiMH cell), and it only happens when you precisely discharge a cell to exactly the same level over and over again, and recharge it without any overcharge. True memory effect happens in satellite power systems, electronics test labs, and practically nowhere else."

Quoted from http://www.dansdata.com/gz011.htm

And further reads below:

http://support.radioshack.com/support_tutorials/batteries/batgd-B09a.htm
http://www.zbattery.com/zbattery/memoryeffect.html
http://en.wikipedia.org/wiki/Memory_effect

In short:

- The term "memory effect" is now generally used to refer to all battery problems that reduce the capacity, though technically it should be called "voltage depression";
- The NiCad, NiMH and LiIon batteries you can buy off the shelf today do not suffer from the technically correct "memory effect";
- Rechargeable batteries do not last forever, whichever the type of chemistry used;
- Using a good charger is essential to avoid "voltage depression".

[loyukfai]

BTW, a read about charging speed:

"It is best to fast charge nickel-based batteries. A slow charge is known to build up a crystalline formation on nickel-based batteries, a phenomenon that lowers battery performance and shortens service life. The battery temperature during charge should be moderate and the temperature peak kept as short as possible."

Quoted from http://www.buchmann.ca/chap4-page1.asp

Again, you don't have to take my words for it, please kindly share if you have insights or more experience and knowledge with regard to the matter.