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Old 10-01-2005, 03:24 AM   #1
OntMont
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Join Date: Jan 2003
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Battery Info.

This more info taken from the Triler Life Directory e-newsletter. This time on batteries. I thought it was a pretty good summary of the situation with different types of batteries, especially the "so-called" RV/marine deep cycle battery.
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When the time comes to replace your RV's batteries, which type of battery should you choose? There are two major categories to consider when buying a new battery.

Battery Type
Ordinary car batteries * often called starting or cranking batteries * are designed to give up a large amount of power in a short time is quickly recharged. Modern motorhomes with separate battery banks rely on this type of battery to start the engine and then use an independent deep-cycle battery for house power.

Deep cycle batteries, which run the electrical accessories are divided into two categories: RV/Marine deep cycle batteries and true deep-cycle batteries. RV/Marine deep-cycle batteries are a hybrid between a starting battery and a true deep-cycle battery and provide both the quick starting power as well as the power to run the lights and electronics. They can withstand more deep cycles than a traditional car battery and will outlast two to four car batteries. Most motorhomes come equipped with these type of batteries.

Yet the best choice for running house power is true deep-cycle batteries, which allow a small amount of power to be used over an extended period of time and requires a slower recharging rate. True deep-cycle batteries can withstand around 800 deep cycles before they need replacing and are a reliable source to keep your house power and other key-off accessory loads running.

True deep-cycle batteries do cost more than RV/Marine batteries. However, when your factory-installed battery dies, you'll get more bang for your buck by upgrading to a true deep-cycle battery rather than sticking with the RV/marine battery. But be aware that RV/marine batteries are sometimes labeled deep-cycle batteries, so always confirm whether the battery you're purchasing is a true deep-cycle battery before buying.

Lead Acid Battery Designs
Once you've decided whether a starting battery, RV/marine battery or a true deep-cycle battery best fits your needs, you'll need to decide what kind of design technology to purchase. There are three distinct types of lead acid batteries manufactured for starting and deep-cycle batteries: 1. flooded acid, 2. gelled acid, and 3. Advanced Absorbed Glass Mat (AGM).

The oldest types of lead acid batteries are flooded cell types and are the choice of many RV owners. Although the least expensive, they can generate and vent explosive gases, and require repeated maintenance.

About 30 years ago, gelled acid (electrolyte) batteries were introduced and touted for their increased efficiency and designed safety features. Although these batteries are good for boats, since the electrolyte won't leak out as with flooded batteries, they require precision charging and have an increased risk of fast failures.

The newest buzz in battery technology is Advanced AGM, which was developed to provide increased safety, efficiency, and durability over all existing battery types. In Advanced AGM batteries the acid is absorbed into a fine glass mat that doesn't splash around. Although Advanced AGM delivers higher power and efficiency than either gelled acid or flooded cell batteries, they are the most expensive option.

 
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Old 10-01-2005, 04:55 AM   #2
faeb and genb
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A good article John something to keep in mind. How are you & Donna doing.Are you going to Rio Grande Valley this year.
Gene
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Old 10-01-2005, 11:37 AM   #3
richfaa
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We had two true deep cycle batteries, Flooded Acid type on our 96 Terry TT for 8 years. They were still on the TT when we sold it and in good condition .We did keep the Camper on power all time execpt when towing and I think that helped. Don't know what will be on the New Montana but will get the same battery setup when the OEM ones wear down
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