[time-nuts] time-nuts Digest, Vol 162, Issue 7

Dave B g8kbvdave at googlemail.com
Fri Jan 5 12:57:40 EST 2018

Probably Nickle Metal Hydrite (NiMh.)

Much more electrical capacity in the same size cell as older NiCd's.  No
memory effect, and currently available in all the common cell sizes,
with or without tag's.   The only thing you might have to do, if the
charger is time based, is alter the timer so you get a full charge.   
There are dozens of makes about, read the data sheets and choose a type
that is suitable for your needs.

High discharge current types however, don't often "keep" a charge for a
"Long" time, so there is still some compromise.


Dave G0WBX.

On 05/01/18 17:00, time-nuts-request at febo.com wrote:
> From: Ulf Kylenfall <ulf_r_k at yahoo.com>
> To: Discussion of Precise Time and Frequency Measurement
> 	<time-nuts at febo.com>
> Subject: [time-nuts] HP 105B: Modern replacement for NiCad battery
> 	pack?
> Message-ID: <884302832.1124667.1515170814315 at mail.yahoo.com>
> Content-Type: text/plain; charset=UTF-8
> Gentlemen,
> I may have asked this question before...
> I am looking for a modern replacement for the NiCadbattery pack used in the HP 105B. One such 105that I salvaged have been standing on a shelf with thebatteries "happily boiling away".
> So, what kind of chemistry would be possible to usewithout to much re-design of the charging circuitry?
> Ulf Kylenfall

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