[time-nuts] float chargers for oscillator backup power

Tom Miller tmiller11147 at verizon.net
Sun Oct 26 13:59:12 EDT 2014

Hi Jim,

I think these chargers are only meant for float charging the battery. They 
are not meant to supply a load (GPSDO) current.
It is more for connecting to your motorcycle or tractor battery and keeping 
it fully charged over winter storage conditions.

I just picked up a MeanWell 24 volt switcher rated at 24 volts @ 6.5 amps 
and has a fine adjustment that will go to >28 volts. Also, it has remote 
sense connections. It was $25 including shipping.


----- Original Message ----- 
From: "Jim Lux" <jimlux at earthlink.net>
To: "Discussion of precise time and frequency measurement" 
<time-nuts at febo.com>
Sent: Sunday, October 26, 2014 11:29 AM
Subject: [time-nuts] float chargers for oscillator backup power

> There are a variety of inexpensive wall-wart packaged float chargers for 
> lead acid batteries around. Might be easier to just get something off the 
> shelf.
> http://www.power-sonic.com/images/powersonic/chargers/AC-Series_12_Aug_15.pdf
> http://www.mouser.com/search/refine.aspx?Ntk=P_MarCom&Ntt=172260151
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