[time-nuts] The home time-lab

Wes wes at triconet.org
Fri Jul 8 12:53:20 EDT 2016

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.

More information about the time-nuts mailing list