100 Robots...800 Batteries...!

 

From: Chuck Darling

July 28, 2025

 

Rechargeable Batteries...

 

I once managed 350 Telxon

Hand Held Computers, that used

3 C-Cell Sanyo Cadnica batteries.

 

The OEM had no date codes

on the batteries...

There was no install date...

There were two kinds of

Battery Clips ...

Tin plated thin spring clips,

and

Nickel plated heavy spring clips.

 

I would put foam behind the clips

to improve contact.

 

Tin clips would oxidize due to

contact with the Nickel batteries.

 

There was water vapor emitted

from charging batteries held in

environmentally sealed cases...

 

Tin plated Eprom sockets would

oxidize too ...

 

I installed silica gel dessicants

in the battery compartments.

 

I kept all of this information

in database records on each unit.

 

Battery failure was the major source

of crashes.

 

We finally bought Panasonic batteries

in bulk, and I wrote the install dates

on the batteries, discarding them

after two years.

 

I changed out the CMOS button cells too.

 

And the Tin plated Eprom Sockets ...

 

 

[Chuck's 00Cedar JPICedar ]

 

 

 

 

[ This page built with JPICedar by Chuck Darling Monday July-28- 2025 Time : 3:41pm]

 

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