Re: (ET) E-15 first mow! And questions (manuals, charging, fuel level, mowing)

["David Roden" <etpost drmm net>]

On 7 Aug 2009 at 8:56, john rieffel wrote:

> I still haven't gotten a very satisfactory answer about charging.  How
> do I know when to stop?

Here are basic charging instructions for lead batteries :

http://www.evdl.org/pages/hartcharge.html

As that page makes clear, to do it right, you should monitor both voltage 
and current while on charge.  Open-circuit (resting) voltage is a pretty 
inaccurate means of measuring state of charge.

The main challenge with following this method is that there's no easy way 
to 
regulate the output of the GE charger.

There are quite a few people on this list who like Harry Landis's 
controller 
for making the GE into a more or less automatic charger.  With all due 
respect for him, I'm not among them.  I'm pretty skeptical about the 
unorthodox charge algorithim Mr Landis used in his design; I don't think 
it's really suited to cyclic applications like the ET.  But his gadget is 
relatively cheap, and it's probably better than nothing.


David Roden - Akron, Ohio, USA

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