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Old 12-14-2018, 08:56 AM   #1
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Battery charger not lighting up

Found another problem , when i push the switch to get the charger to start , the light does'nt light up !
Any suggestions ?

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Old 12-14-2018, 09:08 AM   #2
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Plugged in to good shore power or generator running?
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Old 12-14-2018, 09:13 AM   #3
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since you are INVERTING, there is nothing for the Charger to be doing, it will only power up when you have Shore power or Generator power.
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Old 12-14-2018, 09:18 AM   #4
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Quote:
Originally Posted by formerFR View Post
since you are INVERTING, there is nothing for the Charger to be doing, it will only power up when you have Shore power or Generator power.
thanks for the explanation.
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Old 12-14-2018, 09:25 AM   #5
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and..... when the engine is running, and the Alternator output is providing charging, you'll still not see anything different on the panel, since alternator charging flows thru the B.I.R.D. controller and thru a 12v D.C. coil directly to the battery bank.
The same for any Solar power, if you have any or add any later, since the output is directly to the batteries, not run thru the Inverter/Charger or the Magnum panel.

What you WILL see, though, is typically a higher DC Volts reading as your are traveling, or when Solar is providing a substantial charge over what you are powering while the Inverter is working.

Your DC Volts(battery levels) reading now is showing a number that is more indicative of 'while charging under shore power', so you must have just recently charged the batteries, or unplugged from shore power, or turned off the generator. Normally, the battery bank will have an inverting reading closer to 12.8.
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Old 12-14-2018, 06:32 PM   #6
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To clarify...the 13.6V reading indicates that the battery IS charging and the 13.6Volts is what is being put out by your converter (absorbtion phase)...it is NOT the reading on your battery which could be MUCH lower if tested without the converter on. Voltmeters do NOT tell the state of charge of a battery in use. Only a true battery monitor measuting amps/amphours with a shunt will give accurate SOC information. Victron or Trimetric.
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Old 12-14-2018, 06:51 PM   #7
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the coach does not have a Converter
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Old 12-14-2018, 07:23 PM   #8
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So then it has a charger/inverter. Same deal...the charger section is operating to charge the batteries while the inverter is taking DC from the batteries and making it AC. The readout IS the charger in absorption phase at 13.6V... not the batteries at 13.6Volts. As a practical matter. batts can't be over 12.8V...though they may READ more than that from the surface charge a recent charging may impose and which can be wiped off quickly with a load tester to get a true reading from a disconnected batt.
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Old 12-15-2018, 05:09 PM   #9
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Exclamation

here’s mine from today, while the alternator was providing charge, with the Inverter on...

then again, about 10minutes after the engine was shut off...

neither time will the Charger light show, since there’s no ‘external’ charging
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Old 12-15-2018, 06:22 PM   #10
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Yes... of course...my point for the OP was that the battery was being charged and that the voltage displayed is not the battery voltage but the voltage from the charging source....converter charger alernator solar wind, hamster wheel...
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