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:
[email protected] 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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