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 <[email protected]> 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 -- [email protected] >> 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 >> > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/m > ailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
