disney4dan 68 Posted May 22, 2015 Report Share Posted May 22, 2015 When we opened up our trailer this spring we had signs of mice for the first time in 8 years of camping with a trailer. Everything worked fine on our first, weeklong, trip to Virginia Beach in April. The trailer has been in the driveway for weeks and was plugged into shore power as we got ready for this weekend. Luckily, camping close to home. I put the trailer on the site last night, set things up, disconnected the truck, etc. Went to turn on the water pump to wash my hands and I could tell from the sound the batteries were nearly dead (two 6v golf cart batteries). No big deal, I figure I blew the fuse between the shore power and the battery charger. Got a new deep cycle battery, went to connect it today and I can't keep the 40 amp fuses from blowing. Should I disconnect the new battery first? Put a new fuse in and then connect battery? Or should i try another fuse? Also wondering if I should pull the other smaller fuses, put in the 40 amp fuse and see if there is a particular circuit that might be causing it to short? I see a holiday weekend spent on the trailer floor with a flashlight checking out circuits for signs of mice eating them. Or maybe using flashlights and drinking beer all weekend instead. Tell everyone to use the campground bathrooms. Starting to like my tent even better. Quote Link to post Share on other sites
Grumpy and Grandma 740 Posted May 22, 2015 Report Share Posted May 22, 2015 I have to ask, you didn't reverse polarity by some chance did you? Quote Link to post Share on other sites
disney4dan 68 Posted May 22, 2015 Author Report Share Posted May 22, 2015 I really doubt it, but will certainly check. I am so paranoid about dealing with a battery like that I even went back to the truck to get safety glasses "just in case". But, never know with that new battery. Quote Link to post Share on other sites
mouseketab.....Carol 1,261 Posted May 22, 2015 Report Share Posted May 22, 2015 Is the battery fully charged? Do you have some load going on the camper? If for some reason my battery gets really low, I can't put any load on the system or the main fuse will pop, until the battery gets a good charge on it. Quote Link to post Share on other sites
PGHFiend 140 Posted May 22, 2015 Report Share Posted May 22, 2015 Hook your tuck battery to the camper with jumper cables and see if it still pops. If so, you have a short, if not the batteries your using need a little charge first. Quote Link to post Share on other sites
disney4dan 68 Posted May 22, 2015 Author Report Share Posted May 22, 2015 Hanging my head in shame - reversed the polarity Quote Link to post Share on other sites
Katman1356...Jason 1,140 Posted May 22, 2015 Report Share Posted May 22, 2015 Hanging my head in shame - reversed the polarity Sent from my iPhone using Tapatalk Point goes to Dave! Quote Link to post Share on other sites
DaveInTN 3,247 Posted May 22, 2015 Report Share Posted May 22, 2015 Wow, glad you found it, and so glad Dave suggested it. Now eat that Chinese food and enjoy the rest of your weekend! Quote Link to post Share on other sites
Grumpy and Grandma 740 Posted May 22, 2015 Report Share Posted May 22, 2015 Hanging my head in shame - reversed the polarity Sent from my iPhone using TapatalkDon't feel too bad, it seems to be a common occurrence when people swap RV batteries. Quote Link to post Share on other sites
Helmsey......Todd 134 Posted May 23, 2015 Report Share Posted May 23, 2015 Hanging my head in shame - reversed the polarity Sent from my iPhone using Tapatalk At least it was an easy fix :) Quote Link to post Share on other sites
disney4dan 68 Posted May 23, 2015 Author Report Share Posted May 23, 2015 It's a good thing, too. On battery power and the temperature dropped to 40 last night. Just turned on the furnace while everyone else sleeps in this morning. Sent from my iPhone using Tapatalk Quote Link to post Share on other sites
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