[aprssig] Mobile Off-Air Display

Charles Bland root at blandranch.net
Wed Aug 12 13:42:05 CDT 2015


When not in use, we all put the batteries on proper chargers. I will agree
the 1 ohm resistor is not a long term optimum solution.

Chuck

On Wed, Aug 12, 2015 at 11:02 AM, Bill Vodall via aprssig <aprssig at tapr.org>
wrote:

> >. Basically, we connect to car power
> > through a one ohm resistor. It basically makes high current draws come
> from
> > the battery instead of the car, but allowing the car power to keep the
> battery topped.
>
> I'm done something similar but using a 12V bulb instead of a resister.
> It limits the current flow to a fixed amount and provides a visual
> indicator of charging.   I believe it requires a supplemental smart
> charging circuit to properly top off and cycle the battery to maintain
> good battery health.
>
> Bill
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