[time-nuts] The home time-lab

Scott McGrath scmcgrath at gmail.com
Fri Jul 8 15:04:08 EDT 2016

Best bet is to get 4 6v deep cycle batteries connect in series and connect a high quality power supply capable of supporting planned load and set output voltage to the selected 'float' voltage This will give you a setup which depending on batter rating could give you several days of backup power

Content by Scott
Typos by Siri

> On Jul 8, 2016, at 12:53 PM, Wes <wes at triconet.org> wrote:
> I have for years powered much of my ham station with a 90AH SLA maintained with a homemade "smart" charger. I used an analog Astron 35A power supply (RS-35M) for its raw DC and series pass transistors with its regulator board replaced with a (now obsolete) AA Engineering smart charger board.  This used a uC3906 IC for control.  Capacity wise this was actually overkill for my application as the charger could supply the total load.
> Although many years ago I worked for the founders of Iota Engineering I have no interest in the company other than as a satisfied customer.  That said, if someone wants to pursue something similar I can recommend their power supplies with their "smart charger" modules.  (http://iotaengineering.com/power.htm)
>> On 7/8/2016 12:08 AM, Hal Murray wrote:
>> info at blackmountainforge.com said:
>>> There is a company in the USA that manufactures a product called
>>> BatteryTender - excellent float charger and maintainer. Costco sells them
>>> for $40
>> How do those types of chargers work when there is a load?
>> It's not the typical "float" there is also significant current going to the
>> thunderbolt.
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