From: Darrell Greenwood (lists1_at_telus.net)
Date: Fri May 23 2003 - 21:16:36 PDT
On 5/23/03 at 8:44 PM -0500, Matt Janeczek wrote :
> I know though that the charging cycle is different for
>NiCadand NiMH batteries, because I have a charger at home that has settings
>for both, so perhaps you may not be getting the full potential out of yours,
>even though it may seem like they are being charged okay.
I never bothered checking into the difference between the two
charging cycles (I too have a external charger with a switch between
Nicad and NiMh) because
1. the AAA batteries in the Newton MP100 have lasted a couple of
years and are still chugging along cheerfully without any apparent
problem.
2. These NiMh batteries unquestionably still last much, much longer
than the Nicads I was using initially.
Cheers,
Darrell
p.s., just did a quick google and got this from
<http://www.hamuniverse.com/batteries.html> which fits my experience
(I was manager of an electronics lab before I retired) and my
knowledge of charging theory...
>
>NiCad chargers can be used to charge NiMH batteries, but the
>charging time needs to be lengthened to take NiMH's typically larger
>capacity into account. The main enemy of rechargeable cells is heat.
>If cells get hot during charging, reduce the charging current to no
>more than that recommended.
-- This is the NewtonTalk list - http://www.newtontalk.net/ for all inquiries List FAQ/Etiquette/Terms: http://www.newtontalk.net/faq.html Official Newton FAQ: http://www.chuma.org/newton/faq/
This archive was generated by hypermail 2.1.5 : Fri May 23 2003 - 22:00:01 PDT