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

[Scott McGrath]

I would second the UPS idea in addition to rebuilding the internal pack which I 
see as more of a carryover supply while physically moving the standArd or 
performing maintenance on the line / 24VDC inputs

Content by Scott
Typos by Siri

> On Feb 6, 2017, at 8:50 AM, Scott McGrath  wrote:
> 
> I went with option #2 and opted for batteries plus to rebuild the packs as I 
> recall it was about 80 dollars to rebuild the pack which included a 1 year 
> warranty
> 
> The problem with moving to lithium batteries is building the battery 
> management system and safety systems needed for the SAFE operation of lithium 
> cells.
> 
> Content by Scott
> Typos by Siri
> 
>> On Feb 5, 2017, at 6:27 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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Re: [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  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
>> ___
>> time-nuts mailing list -- time-nuts@febo.com
>> To unsubscribe, go to https://www.febo.com/cgi-bin/m
>> ailman/listinfo/time-nuts
>> and follow the instructions there.
>>
>>
>> -
>> No virus found in this message.
>> Checked by AVG - www.avg.com
>> Version: 2016.0.7998 / Virus Database: 4756/13896 - Release Date: 02/05/17
>>
>
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Re: [time-nuts] What to do with a 5061A/5061B with dead NiCds

[Scott McGrath]

I went with option #2 and opted for batteries plus to rebuild the packs as I 
recall it was about 80 dollars to rebuild the pack which included a 1 year 
warranty

The problem with moving to lithium batteries is building the battery management 
system and safety systems needed for the SAFE operation of lithium cells.

Content by Scott
Typos by Siri

> On Feb 5, 2017, at 6:27 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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Re: [time-nuts] What to do with a 5061A/5061B with dead NiCds

[Magnus Danielson]

Hi,

These days, NiCd cost us a lot here in Europe as Cadmium is something 
they want out of the market. Kind of not so nice for health. Still 
available thought. I avoided loading NiCd into stuff from pure cost.


PHK would vote for lead-batteries. I use LIPO(Fe) for portable stuff.

Cheers,
Magnus

On 02/06/2017 01:11 AM, Joseph Gray wrote:

I don't know which option would be best, but rebuilding the pack may not be
expensive. A rebuilt NiCad pack for a Flukemeter only cost me $12. Fluke
charges $120 for a new one.


On Feb 5, 2017 4:27 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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Re: [time-nuts] What to do with a 5061A/5061B with dead NiCds

[Alex Pummer]

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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Checked by AVG - www.avg.com
Version: 2016.0.7998 / Virus Database: 4756/13896 - Release Date: 02/05/17


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

[J. L. Trantham]

Skip,

I've rebuilt the NiCd battery packs with tabbed half D NiCd cells that are 
about $5 each (with tabs, shipped) and it takes 20 of them and some time to 
disassemble the pack and solder the new cells together.  They will eventually 
die and you will have to replace them again.  The half D NiMH cells I've seen 
have a larger capacity and noticeable more expensive.

I think I would choose to use an external 24 V battery with an attached battery 
charger as the backup rather than a UPS.  Batteries would be cheaper than 
NiCd's but more 'clumsy' to move and keep the unit powered.

The HP 5085A and HP 5089A were designed to take two 12 V SLA batteries and 
supply the needed charging circuitry and connectors to connect to the unit as a 
backup.  It could be mounted in a common cabinet with the 5061A or B as a 
'movable' (not really 'portable') unit.  I have a 5085A that serves as backup 
to two 5061A's each with Opt 001 clocks.  The 5085A and 5089A don't show up 
often on theBay and their original batteries I have not been able to find.  I 
have made some minor modifications and was able to fit two Panasonic LC-X1228AP 
batteries in the unit. 

https://na.industrial.panasonic.com/sites/default/pidsa/files/panasonic_vrla_lc-x1228p_lc-x1228ap.pdf

Choices 3 and 4 seem like a lot of work, particularly the Li Ion option.  

I like the idea of the built in NiCd pack in that you can easily (well, it's 
heavy) move the unit and keep it powered.

Good luck.

Joe


-Original Message-
From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of Skip Withrow
Sent: Sunday, February 05, 2017 5:27 PM
To: time-nuts
Subject: [time-nuts] What to do with a 5061A/5061B with dead NiCds

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

[Bob Camp]

HI

Unless you are in a *very* unusual location, put it on a UPS. 

Bob

> On Feb 5, 2017, at 6:27 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
> ___
> time-nuts mailing list -- time-nuts@febo.com
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Re: [time-nuts] What to do with a 5061A/5061B with dead NiCds

[Joseph Gray]

I don't know which option would be best, but rebuilding the pack may not be
expensive. A rebuilt NiCad pack for a Flukemeter only cost me $12. Fluke
charges $120 for a new one.


On Feb 5, 2017 4:27 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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> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/
> mailman/listinfo/time-nuts
> and follow the instructions there.
>
>
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[time-nuts] What to do with a 5061A/5061B with dead NiCds

[Skip Withrow]

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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