Trailer light drains battery waaay too quick

Asked by May 26, 2013 at 11:52 PM about the 2004 Scion xA 4 Dr STD Hatchback

Question type: Maintenance & Repair

I got a new trailer, light-weight. Same as posted on scionlife.
Hooking up the trailer "tail light" circuit, through a 3 wire to 2 wire "converter" drains the
battery to near dead in about 5 minutes. But, there is no short in the trailer. I know this
because I hooked up the same circuit to a 12V powersupply & measured the current,
and its fine at 3.6A. A short would be a lot more.
If the additional 3.6A was exceeding the fuse rating of that circuit (10A I think) then the
fuse would blow, but it wouldnt kill the battery so quick.
A dead battery could be the culprit, but it shows 12.6V open circuit voltage, which acc.
to the manual, is fully charged. And I can run the head lights/radio for a long time, but
hook up the trailer, and bam, radio dies, battery light comes on, battery gets killed.
Anyone have any ideas?

1 Answer

batteries degrade 10% per year...in other words the ability for the battery to accept a charge degrades 10% per year..a 2004 is a grandpa...you are asking grandpa to do a lot of heavy lifting~

Your Answer

Scion xA Experts

  • #1
    Tom Demyan
    Reputation
    30
  • #2
    Kessog
    Reputation
    20
  • #3
    bob_nueske
    Reputation
    10
View All

Related Models For Sale

Used Scion xB
43 Great Deals out of 1,912 listings starting at $2,000
Used Toyota Yaris
49 Great Deals out of 2,617 listings starting at $2,284
Used Scion tC
93 Great Deals out of 3,202 listings starting at $1,000
Used Toyota Corolla
888 Great Deals out of 69,846 listings starting at $1,479
Used Toyota Matrix
26 Great Deals out of 1,240 listings starting at $1,699
Used Honda Civic
573 Great Deals out of 52,762 listings starting at $1,500
Used Toyota RAV4
651 Great Deals out of 61,907 listings starting at $1,995
Used Toyota Prius
297 Great Deals out of 15,576 listings starting at $1,200

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.