[TowerTalk] Rechargable Batteries for a MFJ-259B Antenna Analyzer

[Pete Smith]

Rich, this much I can tell you -- 1800MaH NiMH cells have worked fine in my 
259B for the last 2 years.  I just use the internal charger to keep them 
trickled at full charge.  I have a MAHA fast charger which I can use for a 
complete recharge, though I haven't needed to.  I should also use it more 
often than I do to condition the cells by completely discharging and 
recharging them.



73, Pete N4ZR

At 09:25 AM 3/19/2005, Richard Thorne wrote:

>I recently purchased an MFJ-259B analyzer.  I want to go with Nicad or
>NiMh rechargable batteries.
>
>I'd like to know what type of charging cirucuit is inside the 259b.
>Theres an internal option to enable or disable its charging circuit.
>
>If I disable the internal charging circuit can I use an external
>nicad/nimh charger without damaging anything?  I have a specialized
>charger that charges NiCads, NiMh, Lithium's, ect that I use for my
>remote control airplanes.  It would be nice to use this so I wouldn't
>have to depend on the 259b's internal charger which would take up to 14
>hours to charge.
>
>Without a schematic of the analyzer I can't determine this on my own.  A
>call to MFJ technical support was not much help either.
>
>Thanks.
>
>
>Rich Thorne
>ARS: N5ZC
>AMA: N5ZC
>Amarillo, TX
>
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