[Elecraft] OT: Battery and charger recommendations for 50 watt solar panel

[Joshua Gould]

I recently picked up a 30 watt Renogy panel that was sold as a kit. It came
with a 5 Amp charge controller that was suitable for sealed lead acid
batteries so I upgraded that to a 10 Amp charger that will work with all of
the available attery chemistries, as I plan to upgrade to LiFePo4 batteries
in the future.

The Renogy controller is dead quiet based on my experiences with using it
on the 1st of January as I activated three different parks.

I think Renogy's decent value for the money...

Josh
AE8JG


On Sun, Jan 5, 2020, 6:24 AM n6lrv at outlook.com <n6lrv at outlook.com> wrote:

> I haven't observed any RFI from the Morningstar Prostar but then my small
> solar setup isn't close to any antennas. I'll give that a try and let you
> know what I find.
>
> Gary
>
> ________________________________
> From: elecraft-bounces at mailman.qth.net <elecraft-bounces at mailman.qth.net>
> on behalf of Jim Brown <jim at audiosystemsgroup.com>
> Sent: Saturday, January 4, 2020 7:44 PM
> To: elecraft at mailman.qth.net <elecraft at mailman.qth.net>
> Subject: Re: [Elecraft] OT: Battery and charger recommendations for 50
> watt solar panel
>
> What can you tell us about RF noise from the Morningstar charge
> regulators when the wiring between panels, regulator, and battery is
> very close to antennas? I'd be willing to bet it varies widely from one
> regulator family to another.
>
> Another critical point -- current drawn from the panels and fed to the
> battery is pulsed DC, so should be viewed DC 100% modulated by DC square
> waves. ALL wiring in the charge path must be twisted pair to minimize
> radiation from it to nearby antennas.
>
> 73, Jim K9YC
>
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