Re: (ET) Deal on batteries

["David Roden" <etpost drmm net>]

elec-trak cosmos phy.tufts.eduOn 7 Mar 2011 at 0:37, David Plamondon wrote:

> Any guess as to what they might be?

IIRC, every battery has a manufacturer's code stamped into the plastic 
somewhere.  Or it might be a bar code.  Or that might be the date.  My 
memory's hazy on this, and I can't find the reference I was sure I 
bookmarked. :-(

A fairly diligent web search might turn up a list of manufacturers and 
their 
codes.  There are hundreds of them worldwide, many of those in China.

I'd guess that the "100 75" means a reserve capacity of 100 minutes at 75 
amps.  That's a bit low. Typical today for a standard golf car battery is 
115 min at 75 amps.  Typical weight is around 63lb, so yours have a little 
less lead and hence a little less capacity.

The fact that they've been sitting round the store for a long time isn't a 
good sign.  When you consider that ET batteries usually last 7-10 years 
and 
you look at the monthly amortized cost of a better quality battery, these 
may not be as much of a bargain as they seem, especially if some of their 
calendar life is already gone from sitting.


David Roden - Akron, Ohio, USA

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