External battery charger
Now and again I use an external three stage battery charger on my two 6 volts without disconnecting the batteries from the trailer. I have not had any issues so far but was recently told not a good id...
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The lowest voltage my Ford alternator has ever put out is 12.9 volts in scorching triple digit Idaho summer weather - but this was very rare and did not last long.
My AGM batteries can stay in full charge condition going down the road during year after year of driving with around 13.6 volts or higher maintained on them, which is where the alternator's minimum falls the bulk of the time in normal warm weather. "All over the map" Ford alternator output voltage refers to what can be seen over years and years of use in a huge variety of outside temperature conditions no matter how long the conditions may have lasted.
When my AGM batteries are fully charged, the ammeter - with it's shunt in their negative main cable - shows zero amps going in-to or out-of the batteries, regardless of what the alternator ... or any other charger ... is trying to do to them.
Ya gotta love that hard current flow stop that AGM batteries come up against when they're fully charged .... that's way better than that mushy maybe-I've-arrived and maybe-I've-not-arrived current flow that continues into wet batteries when they're supposedly fully charged even when/as indicated by specific gravity readings.
I prefer K.I.S.S. over all else.
My AGM batteries can stay in full charge condition going down the road during year after year of driving with around 13.6 volts or higher maintained on them, which is where the alternator's minimum falls the bulk of the time in normal warm weather. "All over the map" Ford alternator output voltage refers to what can be seen over years and years of use in a huge variety of outside temperature conditions no matter how long the conditions may have lasted.
When my AGM batteries are fully charged, the ammeter - with it's shunt in their negative main cable - shows zero amps going in-to or out-of the batteries, regardless of what the alternator ... or any other charger ... is trying to do to them.
Ya gotta love that hard current flow stop that AGM batteries come up against when they're fully charged .... that's way better than that mushy maybe-I've-arrived and maybe-I've-not-arrived current flow that continues into wet batteries when they're supposedly fully charged even when/as indicated by specific gravity readings.
I prefer K.I.S.S. over all else.
