> -----Original Message-----
> From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On
Behalf
> Of John Gardner
> Sent: 11 June 2010 02:03
> To: Microcontroller discussion list - Public.
> Subject: Re: [EE] Desulphating batteries with Epsom salts
> 
> Yes, that's correct, for the batteries I mentioned.
> Gel cells have the virtue of very low impedance,
> which is good for wheelchair apps. The tradeoff
> is fewer charge/discharge cycles - All the more
> reason to take good care of them.

AFAIK gel cells typically have a *higher* internal resistance than
flooded lead acid cells due to decreased ion mobility in the
electrolyte.  Absorbed Glass Matt cells (often confused with gel as both
are sealed) have equivalent or sometimes lower internal resistance.

Regards

Mike

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