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Old 10-05-2014, 08:10 PM   #1
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Smile Brand New Bay Star 2903 2015

Brand new 2903 Bay Star It is on the road to me. I am wondering what to do first. I want to have solar panels 240 watt and an inverter. Do I get a 2000 or a 2800 watt inverter. The most we use is a coffee maker or hairdryer maybe some popcorn in the micro. I have seen slide roller pads for the inside. Do they work?Anything else I should think about?

THANKS Jim
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Old 10-06-2014, 06:32 AM   #2
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Lots more, but start with a built-in surge protector. I have two friends who waited on this and suffered the consequences with fried lights and electrical systems.

Congratulations on the Bay Star.

Don
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Old 10-09-2014, 01:39 AM   #3
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The information below will give you an idea how long your batteries will last when using an inverter and not connected to shore power. While the below information is from Tripp Lite it does apply to any manufacturers inverter. Depending how many watts you use 240 watts of solar will not be enough to charge the batteries without running the generator.

STEP1: Determine Total Wattage Required Add the wattage ratings of all equipment you will connect to your Inverter/Charger. Wattage ratings are usually listed in equipment manuals or on nameplates. If your equipment is rated in amps, multiply that number times AC utility voltage to determine watts. (Example: a ¼ in. drill requires 2½ amps. 2½ amps × 120 volts = 300 watts .) Note: Your Inverter/Charger will operate at higher efficiencies at about 75% - 80% of nameplate rating.

STEP2: Determine DC Battery Amps Required Divide the total wattage required (from step 1, above) by the battery voltage (12) to determine the DC amps required.

STEP3: Estimate Battery Amp-Hours Required (for operation unsupported by the alternator) Multiply the DC amps required (from step 2, above) by the number of hours you estimate you will operate your equipment exclusively from battery power before you have to recharge your batteries with utility- or generator-supplied AC power. Compensate for inefficiency by multiplying this number by 1.2. This will give you a rough estimate of how many amp-hours of battery power (from one or several batteries) you should connect to your Inverter/Charger. NOTE! Battery amp-hour ratings are usually given for a 20-hour discharge rate. Actual amp-hour capacities are less when batteries are discharged at faster rates. For example, batteries discharged in 55 minutes provide only 50% of their listed amp-hour ratings, while batteries discharged in 9 minutes provide as little as 30% of their amp-hour ratings.

STEP4: Estimate Battery Recharge Required, Given Your Application You must allow your batteries to recharge long enough to replace the charge lost during inverter operation or else you will eventually run down your batteries.To estimate the minimum amount of time you need to recharge your batteries given your application, divide your required battery amp-hours (from step 3, above) by your Inverter/Charger’s rated charging amps (see the unit's nameplate for the available charging current). NOTE! For Tripp Lite Inverter/Chargers providing 1000 watts or less of continuous AC power, a full-size battery will normally allow sufficient power for many applications before recharging is necessary. For mobile applications, if a single battery is continuously fed by an alternator at high idle or faster, then recharging from utility or generator power may not be necessary. For Tripp Lite Inverter/Chargers over 1000 watts used in mobile applications, Tripp Lite recommends you use at least two batteries, if possible fed by a heavy-duty alternator anytime the vehicle is running. Tripp Lite Inverter/Chargers will provide adequate power for ordinary usage within limited times without the assistance of utility or generator power. However, when operating extremely heavy electrical loads at their peak in the absence of utility power, you may wish to “assist your batteries” by running an auxiliary generator or vehicle engine, and doing so at faster than normal idling.

Chuck
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Old 10-09-2014, 01:48 AM   #4
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Here is a link for good information about how solar works.
AM Solar's Educational Pages for RV Solar Systems

Also Don's suggestion about a surge protector is very good. I have a Progressive Industries EMS-HW50C.
EMS-HW50C
If you search the web you can find it for a lot less then the link shows.

Chuck
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Old 10-09-2014, 10:24 AM   #5
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Welcome to irv2.
If you look through these links you will find many answers for your Newmar.
Newmar QT's 1 & 2 and the new # 3.
You will find other TECH INFO here.
Solar energy.
AMSOLAR
Congratulations on your new Newmar and welcome to the Newmar family.
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