Forum Discussion

KeithOrn's avatar
KeithOrn
Explorer
Dec 18, 2014

Charging Problem

I have a Keystone TT that the 12v lights start to get dim but if I turn the microwave on for 3 seconds or the coffee pot the lights get brighter and the problem goes away for a few hours. If I don't put a surge to it the battery goes dead. If I do the battery will charge till it finishes a full charge and it all happens again. Shore power runs all except interior lights, heater and radio. This seems to be a relay problem of some type. The battery was changed but still did not fix the problem.. Any advice you all have would be cool!
  • KeithOrn's avatar
    KeithOrn
    Explorer
    Dec 18, 2014
    2008 Keystone Hideout 30ft
    It is a PPS Series 7100 Model 7155 Imput 105-130 vac 60Hz 975 watts
    Output 55 amps 13.6 VDC
    12 VDC Fuseblock Branch Circuit fuse size 20A
    Class CTL Panel Board type 1 Max 30 amps
  • WayneAt63044's avatar
    WayneAt63044
    Explorer
    Dec 18, 2014
    Do you have a DC meter? The battery should measure roughly 12.8V if fully charged and shore power disconnected. Then plug in shore power and the battery voltage should be over 13V with the converter charging it. The microwave and coffee pot only work from 120V AC shore power but the lights are likely 12V and operate from the battery/converter. Then what does the battery voltage do when you use the microwave/coffee pot? Your symptoms are unusual but maybe we can help you.
  • lawrosa's avatar
    lawrosa
    Explorer
    Dec 18, 2014
    Hello. What is the make and model of the converter?

    Also what year is the travel trailer?

    With this information we should be able to assist you better...Sounds like a converter issue and most likely best to replace with an upgrade then try to repair...

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