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Old 08-31-2016, 02:12 AM   #1
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Default what's proper way to change battery

When I work on my house electrical I always shut off the breaker for that circuit before doing any work. I imagine that would be the same for the RT. At that point does it matter which cable I remove first - are there any residual charges in there that I still need to be cautious about?

The auxiliary battery seems like the original Canadian unit complete with English/French text on it. On inspection there seems to be gaps in the battery box on the underside of rear passenger side floor, so it is vented. The floor cover is 1/2" plywood secured by 6 screws with rubber seals all around. Can't seem to determine battery type but I'm not planning on changing the converter for now so staying with "regular" (wet cell?) type battery will do for now. I will at least replace with same type if available. What I'm hoping is at least be able to run the dometic fridge, couple lights, ceiling fan and a small 15" flat screen TV (air signals only) that is able to run on 12v - not all at same time even. So, besides the physical size of the battery box what battery rating should I look for as a minimum?
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Old 08-31-2016, 05:35 AM   #2
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remove negative first, install negative last...


that way when you have your wrench on the positive you won't throw sparks should it contact anything grounded

mike
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Old 08-31-2016, 12:20 PM   #3
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Quote:
Originally Posted by mkguitar View Post
remove negative first, install negative last...


that way when you have your wrench on the positive you won't throw sparks should it contact anything grounded

mike
+1

Thanks


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Old 08-31-2016, 02:03 PM   #4
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BTW my batteries come from costco.

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Old 09-01-2016, 02:30 AM   #5
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Does COSTCO store in Phoenix or Glendale carry AGM deep cycle batteries?
Only sell wet cell in Prescott store.
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Old 09-01-2016, 03:58 AM   #6
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No Costco batteries near me but oreilly's is very close.

Whew...that was some heavy battery! With barely a foot of storage space above and shoved over the back corner it was like doing 50-lb curl-ups. I had to Use a 2x levering stick over a fulcrum lifting it by the handle while sticking 1x shims underneath between the battery box vent gaps 1" at a time until the thing can slide over. not blessed w upper body strength, this lifting part took me 20 min to do. I hope the new one last me 10 years...probably not.

Appreciate the tips, guys.
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