The life expectancy of your RV batteries depends on you. How they're used, how well they're maintained, how they're discharged, how they're re-charged, and how they are stored all contribute to a batteries life span. A battery cycle is one complete discharge from 100% down to about 50% and then re-charged back to 100%.
One important factor to battery life is how deep the battery is cycled each time. If the battery is discharged to 50% everyday it will last twice as long as it would if it's cycled to 80%. Keep this in mind when you consider a battery's amp hour rating. The amp hour rating is really cut in half because you don't want to completely discharge the battery before recharging it. The life expectancy depends on how soon a discharged battery is recharged. The sooner it is recharged the better.
Battery Tool
What does all of this mean to you? That depends on how you use your RV. If most of your camping is done where you're plugged into an electrical source then your main concern is just too properly maintain your deep cycle batteries. But if you really like to get away from it all and you do some serious dry-camping you'll want the highest amp hour capacities you can fit on your RV.
Deep cycle batteries come in all different sizes. Some are designated by group size, like Group 24, 27 and 31. Basically the larger the battery the more amp hours you get. Depending on your needs and the amount of space you have available, there are several options when it comes to batteries. You can use one 12-volt Group 24 deep cycle battery that provides 70 to 85 amp hours or you can use two or more 12-volt batteries wired in parallel. Parallel wiring increases amp hours but not voltage.
If you have the room you can do what a lot of RVers do and switch from the standard 12-volt batteries to two of the larger 6-volt golf cart batteries. These pairs of 6-volt batteries need to be wired in series to produce the required 12-volts. Series wiring increases voltage but not amp hours. If this still doesn't satisfy your requirements you can build larger battery banks using four 6-volt batteries wired in series/parallel that will give you 12-volts and double your AH capacity.
Happy Camping,
Mark
Copyright 2006 by Mark J. Polk owner of RV Education 101
Christmas Sales DEWALT DC9180C 18-Volt Battery Pack/Charger 201
Dec 25, 2011 20:02:17
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Christmas Sales DEWALT DC9180C 18-Volt Battery Pack/Charger Feature
- DC9180 18-volt XRP track saw Battery Pack is compatible with DEWALT 18-volt tools
- XRP track saw extended run-time battery provides long run-time & battery life
- Lightweight design- 1.5 lbs; same weight as an 12-volt NiCd battery
- No memory and virtually no self-discharge for maximum productivity and less downtime
- DC9310 Charger Charges all DEWALT 7.2-volt - 18-volt NiCd/NiMH/track saw batteries (except Univolt batteries) so users need only one charger for multiple cordless products.
Christmas Sales DEWALT DC9180C 18-Volt Battery Pack/Charger Overview
The DeWalt DC9310 heavy-duty charger provides fast, reliable charging of most common batteries, so you can trust that your tools will be ready to go when you need them, and the included battery pack with DeWalt's trademarked NANO Technology is compatible with a full compliment of tools in the DeWalt 18-volt system. This innovative 18-volt battery weighs the same amount as a traditional 12-volt battery, and offers improved run times and a longer overall life--up to 2,000 charges--due to the fact that it has no memory and exhibits almost no unwanted discharge. By reducing downtime and maximizing your team's productivity, an effective charger saves you time and money. And the charger included here works with all 7.2-volt to 18-volt batteries from DeWalt, whether they use NiCd, NiMH, or Li-Ion chemistries (not compatible with Univolt batteries). This means that, no matter how many kinds of tools you have, you only need only one charger to ensure they're ready to go. Plus charging only takes about one hour.SAVE NOW on Christmas Sales Offers below!
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