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Old October 18th 19, 03:29 PM posted to rec.aviation.soaring
Tim Newport-Peace[_6_]
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Posts: 65
Default A Different Battery Question

At 08:44 18 October 2019, krasw wrote:
We charged LFP battery installed in glider using charger plug that feeds
th=
e battery via glider electrical system. We discovered that there was
automa=
tic breaker hidden in glider electrical system (DG DEI) that stole little
b=
it of voltage. This caused charger to not charge battery to full. It

seems
=
that you cannot have automatic breakers between charger and battery.

Whenever you put any device is series, expect to lose something. For
example with a series diode expect to lose about 0.5volt.

For this reason many radio manufacturers use a back-biased diode across the
supply and a series fuse. In this way no current passes through the diode
unless you cross-polarity the radio, in case it will be a short to blow the
fuse.