16 Oct
2005
16 Oct
'05
11:30 a.m.
I noticed my HP 262X terminals have a "Duracell TR133" battery in the back
to maintain settings when powered off. The battery indicates "Mercury" on
the side.
Are mercury batteries rechargable? I would have thought they'd use a nicad
or something to charge up while the unit was on.
The TR133 battery also indicates "4.2V". It seems the Duracell replacement
for this battery is Alkaline, and 4.5V. Should I use it?
Jay
16 Oct
16 Oct
10:49 a.m.
I noticed my HP 262X terminals have a "Duracell TR133" battery in the back
to maintain settings when powered off. The battery indicates "Mercury" on
the side.
Are mercury batteries rechargable? I would have thought they'd use a nicad
or something to charge up while the unit was on.
No they are not.
IIRC, it lasts a good few years, but was designed to be
customer-replacable (hence the little plastic clip-in holder). A NiCd
would probanly have been soldered to one of the PCBs.
The TR133 battery also indicates "4.2V". It seems the Duracell replacement
for this battery is Alkaline, and 4.5V. Should I use it?
IIRC, a PX21 Alkaline battery is much the same size (and 4.5V) and works
fine. Same battery as used in the EDC Praktica SLR cameras, BTW.
-tony
18 Oct
18 Oct
5:44 p.m.
No, mercury batteries are not rechargeable.
They are honestly a really major hazard, and need special disposal.
----- Original Message -----
From: "Jay West" <jwest at classiccmp.org>
To: "General Discussion: On-Topic and Off-Topic Posts"
<cctalk at classiccmp.org>
Sent: Sunday, October 16, 2005 2:30 PM
Subject: battery education sought
I noticed my HP 262X terminals have a "Duracell
TR133" battery in the back
to maintain settings when powered off. The battery indicates "Mercury" on
the side.
Are mercury batteries rechargable? I would have thought they'd use a nicad
or something to charge up while the unit was on.
The TR133 battery also indicates "4.2V". It seems the Duracell replacement
for this battery is Alkaline, and 4.5V. Should I use it?
Jay
7005
days inactive
7008
days old
2 comments
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