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

[Mark Goldberg]

My Morningstar PWM controller has a bang bang mode that only switches once
a second or so. In the normal mode it is noisy. You give up the extra
efficiency from an MPPT charger, but it is much cheaper.

73,

Mark
W7MLG

On Sat, Jan 4, 2020 at 8:45 PM Jim Brown <jim at audiosystemsgroup.com> wrote:

> 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
>
> On 1/4/2020 3:11 PM, n6lrv at outlook.com wrote:
> > Reasonably priced is up to you Wayne but for proven and reliable I
> recommend products from<https://www.morningstarcorp.com/>. At my place of
> work we have several of their MPPT and PWM controllers in service, some as
> much as 10 years now. I use their Prostar PWM controller on my personal
> standalone system with a 100 watt panel and a modest lead acid battery. In
> my experience their more compact Sunsaver products work well too and both
> are available on Amazon.
>
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