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Old 04-18-2012, 03:45 AM   #5
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Default Re: 2010 Pleasureway Plateau Newbie needs help

From the above linked battery info: a battery left in a sate of charge less than ~75% will kill it very quickly. Batteries need to be charged back to near 100% with in a few days. If you are getting a low voltge situation, and you are not recharging, you re going to prematurely kill your batteries.

It should be noted that most RVs have large phantom loads (largely from the battery isolator relay) 24/7 which lead the batteries to fail much sooner. Even with the battery switch "off" they will draw nearly 1 amp. It is almost essential to install a positive off switch so that you can turn off the load when idle for a few days. Just another FYI, 1 amp, over 24 hours is 24 ah. Most RV batteries at in the 200 ah range, so 4 days of 1 amp draw would BR almost 1/2 the battery capacity. Regardless of wht the battery sellers like to tell you, routinely discharging a deep cycle to 50% or more is a recipe for short battery life. Ideally, a routine discharge of ~20% is ideal for the longer battery life.

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