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09-25-2021, 08:20 AM
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#1
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New Member
Join Date: Sep 2021
Posts: 2
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Battery/shore power problems
Hi, we just purchased a 2009 Ameri lite 21MB and when the battery is completely disconnected the interior lights, furnace and fridge do not work even though we are connected ti shore power. Any ideas on how to fix this?
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09-25-2021, 08:24 PM
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#2
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Senior Member
Join Date: Nov 2017
Location: Black Hills, SD
Posts: 143
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All of those things you mentioned need at least some 12v power from the battery to work, so make sure you have a good battery and that all of your circuit breakers and switches are on so that the battery can power those things. You should not disconnect the battery if you are trying to power anything in the trailer.
Shore power is 120v power which provides electricity to your outlets, AC, etc. Shore power also provides power to the power converter, which both CONVERTS 120v power to 12v power and charges the battery.
__________________
2005 22' BT Cruiser 5211, Chevrolet 3500 chassis w/6.0L Vortec V-8; 6'x12' Cargo Trailer; Honda CB500X motorcycle for street and ADV riding; Yamaha TW200 motorcycle for dual-sport and trail riding...All of it for fun and adventure!
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10-03-2021, 09:30 AM
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#3
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Senior Member
Join Date: Aug 2017
Location: Memphis
Posts: 754
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Quote:
Originally Posted by londa716
Hi, we just purchased a 2009 Ameri lite 21MB and when the battery is completely disconnected the interior lights, furnace and fridge do not work even though we are connected ti shore power. Any ideas on how to fix this?
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If battery was CONNECTED REVERSE POLARITY, it may have blow the REVERSE POLARITY FUSE at CONVERTER/CHARGER then battery corrected, but fuse not replaced? There are usually TWO of these, one fuse panel to battery, the other Fuse panel to Converter?
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THenne1713
2000 Conquest LE 6266, Class-C on 99-E450SD, 6.8, 2v, V-10
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10-03-2021, 04:06 PM
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#4
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Member
Join Date: Aug 2020
Location: Rio Rico, AZ
Posts: 63
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Am I correct in thinking that (for the DC portion) the shore power converts to the 12 volt which goes to the battery, then to the 12 volt circuits? That is everything 12 volt is powered from the battery, whether shore power is present or not. No separate 12 volt from the converter that goes around the battery.
Thx
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Bill
Rio Rico, AZ
2004 BT Cruiser 5210
Class C
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10-03-2021, 05:11 PM
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#5
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Senior Member
Join Date: Aug 2017
Location: Memphis
Posts: 754
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Quote:
Originally Posted by BPeschka
Am I correct in thinking that (for the DC portion) the shore power converts to the 12 volt which goes to the battery, then to the 12 volt circuits? That is everything 12 volt is powered from the battery, whether shore power is present or not. No separate 12 volt from the converter that goes around the battery.
Thx
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(Most?) Power Center FUSE PANELS have TWO (30a or 40a @12vdc?) MAIN fuses, (Often labeled REVERSE POLARITY), one goes to CONVERTER, one goes to Battery. then Battery end of same cable has 12vdc CIRCUIT BREAKER close to the battery (usually within 18"?) The converter may also have a RESET button/ circuit breaker on it. A battery installed backwards (may) pop all 3-4 devices, but better than smoking wires/ starting fires? A Point of CONFUSION to many RV USERs is when BLACK/WHITE cables used on Battery and BLACK=POS(+)
vs BLACK/RED cables, where BLACK= NEG(-).
HOPE THIS HELPS?
__________________
THenne1713
2000 Conquest LE 6266, Class-C on 99-E450SD, 6.8, 2v, V-10
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