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4 V gel cell for Tek 222PS scope

Hello all!

I am looking for a replacement battery for a Tektronix "Power Scout"

222PS portable scope. The original battery supplied by Tek consists of two Panasonic 4 V 2.2 Ah/20h gel cell batteries glued together and wired in series. The Tek label rates this combination at 8.0 V, 2.1 Ah/10h and gives the part number as 146-0075-00. (This same battery may have been used in the other portable scopes like this one, like maybe the 222/A and 224.)

The Panasonic part number for each battery is LC-2042R1PU . I can't find this number, but they are the same size, shape, and terminal configuration as the (discontinued) LCS-214P,

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. (Tek welded some tabs onto the battery terminals to connect the wires to.) I have checked some of the usual suspects (Power Sonic, CSB, Yuasa/Enersys, and Sonnenschein) and none of them make exactly this battery. Power Sonic makes some 4 V batteries that are physically and electrically too big. They also make an 8 V 3.2 Ah battery
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that will almost fit in the hole except it's just a bit too long (the 5.3"/134 mm dimension).

If I can't find the right battery, I have other options. I sort of want to stay with lead-acid or with something that has a compatible charging requirement so I can keep using the charger built into the scope. If I can find a 12 V battery that fits in the hole, I can run it into the external power jack on the scope, but then I have to come up with a separate charger for the battery. Or, maybe I can stack up some NiCd, NiMH, or 2 V SLA cells to get there.

Any tips or leads will be appreciated. Thanks!

Matt Roberds

Reply to
mroberds
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There are cells called "Cyclon (cylindrical lead acid) which are 2V at

0.8 up to about 25AH, available from CPC.

You might be able to use these, if they are the correct size. Regards,

-A

Reply to
testing_h

One of the following three options might fit:

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If none of those work, you may be able to assemble a pack from:

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which are much larger than the original battery, or perhaps from:

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which are the Cyclons that were mentioned earlier.

Sorry for the single-site links. They have a fair price and a good search engine, so it made my job easier.

-Keith

Reply to
Keith Jewell

quoting:

Did you check to make sure your batteries are not just sulfated?

Reply to
JM

JUST sulfated???? Please disclose the cure for sulfation. Thanks, mike

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Reply to
mike

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