[time-nuts] What to do with a 5061A/5061B with dead NiCds

[paul swed]

Much has been said and I favor the lead acid approach.
My luck with nicad has not been good. I purchased brand new ones for a Tek
TDR 1502 and they did not last that long and as mentioned quite expensive.
I actually have some older nicads that must be 30 years old and they still
hold a charge, have not leaked and are pretty amazing. I believe that like
all things business has figured out how to give them a defined lifetime.
(Short)
The lead acid battery approach offers simplicity.
Wide range of charging approaches that are simple.
Can choose to use a plain old UPS as an example though the efficiency is
not great.
Good luck Skip.
Regards
Paul
WB8TSL

On Sun, Feb 5, 2017 at 7:04 PM, Alex Pummer <alex at pcscons.com> wrote:

> it is a "ventilated flooded" battery?
>
> 73
>
> if it s a flooded battery it is very easy to fix it
>
>
>
> On 2/5/2017 3:27 PM, Skip Withrow wrote:
>
>> Hello time-nuts,
>>
>> I have 5061A and 5061B units with the battery option and dead battery
>> packs.  My question is what makes the most sense when refurbing these
>> units?
>>
>> 1.  Yank the old battery out and just leave it that way.  Running the unit
>> on a UPS would preserve the functionality.
>>
>> 2. Replace the pack with a rebuilt NiCd pack.  I'm sure Batteries Plus
>> would be happy to do it, but sounds expensive.
>>
>> 3. Replace the pack with a NiMH pack, and really crank down the float
>> current of the 5061.
>>
>> 4. Replace the pack with Li-ion battery.  Would be a much smaller battery,
>> but the charging circuit would have to be pitched.  Building in a Li-ion
>> charge controller sounds like it could be a project (which I don't
>> necessarily want).
>>
>> 5. Yank the old battery pack and run the 5061 on two 12V batteries with an
>> appropriate power supply/charger (basically a version of #1).
>>
>> Any thoughts on these or other options would be appreciated.  Thanks in
>> advance.
>>
>> Regards,
>> Skip Withrow
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