Re: (ET) Lithium-ion Battery

["Raymon R. Ellis" <raymon10 comcast net>]

Thank you Nick for the information. I may look into the small tools after
the holidays. The failure of battery packs in laptops has been noticed but
the Li-ion link was not picked up. Thank you. 

-----Original Message-----
From: Nick Skinner [mailto:kc2dzb nycap rr com] 
Sent: Saturday, December 22, 2007 12:26 PM
To: Raymon R. Ellis
Subject: Re: (ET) Lithium-ion Battery

Lithium-ion and lithium polymer batteries require specialized charging and 
discharging monitors.  If either process is done to quickly, then the 
packs 
will overheat and can potentially catch fire.  Mac, Dell, Lenovo, etc. had 
recalls on laptop batteries for this reason.

They are making Li-ion battery packs for hybrid and EV's, but they are 
specialty packs (read, very very expensive).

BTW, many companies are starting to offer 36V powertools.  DeWalt is one, 
I 
think Bosch and Ryboi might be also.

Nick

----- Original Message ----- 
From: "Raymon R. Ellis" <raymon10 comcast net>
To: <elec-trak cosmos phy tufts edu>
Sent: Saturday, December 22, 2007 11:43 AM
Subject: (ET) Lithium-ion Battery


> Does anyone on the Digest have information they may share on a cordless
> reciprocating saw powered by a 20 volt lithium-ion battery? The battery
> costs more than the saw at one retailer. What's so different about the
> lithium-ion battery? Will large ones ever be developed for the Elec-Trak?
> Slightly off the main but it may help us. Thank you for any reply. Raymon
>
>
>
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