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From: cont..._at_yahoo.co.uk
To: "TSCM-L Professionals List" <TSCM-..._at_googlegroups.com>
Subject: Re: Round battery (disk-shape)...high capacity ?
Date: Sat, 17 Mar 2007 19:36:55 -0700
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Ok...as good practice..i=B4ll let you know that i found what
i=B4m looking for...my self (as usual : )
Here=B4s the only manufacturer in the world that produces a
Disk-shaped Lithium-ion battery with a capacity of
500mAh at 3,7 Volts
It measures only 35 mm (diam) and is only 5.5 mm thick.
http://www.powercellkorea.com/eng/product/overview.php
Specs here :
http://tinyurl.com/2sh28v
This would be the highest energy-density battery in the world
having a disk shape (instead of volume-inefficient square shape)
(energy-density means power-capacity per volume)
I=B4d say very suitable for bugs,trackers...and other
small but round/disk sized stuff that needs to work a long time while
small in size.
Sad enough it=B4s made in Korea and i have not found
any western distributor yet.
Next problem is to find a suitable charger..but i won=B4t
bother you with that.
Greetz
contranl
On 16 mrt, 04:11, co..._at_yahoo.co.uk wrote:
> .
>
> A little off topic...excuses.
>
> I need a round RECHARGEABLE battery
> like a very large button cell (disk-shaped)
> some thing like the size of a wristwatch.
> ...with a high as p=F6ssible capacity.
>
> Diameter max 45 mm.
> Thick max 12 mm
> Voltage 3,7 ~6 V
> Capacity 500 mAh or more.
> Continious discharge 100mA
> Max price 30 U$ (quantities)
>
> Dont think that is easy to find cause it isn=B4t.
> i have spend a 30 hours searching the net.
>
> They come as buttoncells but no more then 250mAh
> at the wrong (to low) voltage.
>
> Current highest capacity are Lithium-Polymer
> you know those that like to explode inside cellphones and laptops.
> such a battery would be fine for me..but they are only
> available square-shaped
>
> Other round batteries are penlight shaped..but i need disk-shape
> ...combining smaller cells doesn=B4t get what i want either.
>
> Maybe a company exists that makes batteries in any shape
> including round single cells (not packs)
>
> The reason is that i need maximal space/energy efficiency
> and the case it should fit in is round...so the batt should be round
> too.
>
> Anyone ?
Received on Sat Mar 02 2024 - 00:57:22 CST