How many batteries do you need?Ĭonservitive minds with daily use of 100AH believe you should have 300-600AH of battery capacity(180-360 pounds of lead acid batteries!) This will allow you to get through rainy and cloudy days with no issues. IMO these are acceptable to get you by in a pinch.
Some out of the box ideas for charging batteries will include jumper cables from truck battery to RV batteries and an inverter powered by truck alternator/batteries plugged into RV shore power. Lithium will loose capacity sitting fully charged from constant converter charging.
How do I charge my RV batteries? It does not have the ability to adjust voltage to exact battery specifications or correct voltage for the temperature of the battery. The converter does not charge Flooded or AGM batteries correctly. If you are boondocking, you will be charging with generator/converter or with solar. An example of that would be a 100AH battery only able to yield 79AH of energy. When the expected life cycles of a battery is over it will not be able to hold 80% of rated capacity. Most boondockers will be lucky to see 1/2 of this life in the real world with temperatures being an issue and not able to charge the battery consistently because of cloudy and rainy days. The curve of the cart in relation to DOD (Depth of Discharge) is similar with ALL batteries. The chart below is chart of Lifeline AGM battery in a laboratory at a constant 77 degrees. They can achieve 2000-5000 cycles in a laboratory! If your leaning towards Lithium, more information here. Lithium is a separate group, it is the newest battery type with a lot of potential. This is because these batteries are made with thicker lead plates. You will need at least 100AH of useable battery.Īs you can see from the chart above, the GC (Golf Cart) batteries and some AGM batteries can let you use more of the capacity. If your RV lights use 4A 12v and you leave them on for 2 hours (4×2=8AH) you will have used 8AH from your 12v battery. Capacity of the Batteryīattery capacity is measured in AH’s. RV Battery Types – Lithium, AGM and Flooded. The biggest downfall being temperatures below freezing. Lithium can look more appealing than AGM with longer life cycles, more useable capacity and much lighter. AGM is a sealed battery with no Maintance and more flexibility for mounting, no need to vent this type. Flooded batteries are budget oriented and come with some Maintance and need to be vented. There are 3 main types of batteries, Flooded, AGM and Lithium in order of price. If you decide to go with AGM or Lithium you have the ability to bypass the venting system, some mount them in living quarters for smaller temperature swings. When measuring the battery box don’t forget to leave yourself enough height for connecting the battery terminals. Flooded lead batteries will require adding water, checking the specific gravity and the venting system will have to remain functional. It will be easier, but not always required to have your new batteries fit in same boxes. This can be critical, your RV came with battery compartment or box and a venting system.
#BEST BATTERY FOR BOONDOCKING GENERATOR#
Of course we can’t forget about starting the generator either, if you have one onboard. The devices that require 12v power include Propane fridge controller, furnace thermostat and blower, lights, water pump, radio, move the slides, tounge jack, some leveling systems, many awnings and various others devices. While boondocking our battery has many important tasks to do for us, some will be surprised how much we rely on them. Each battery will have a capacity around 100AH. Try to find a battery with same physical size making sure to choose one with an AH rating on it. If your RV is plugged in most of the time.įor people that keep their RV plugged in at RV park or home all most all of the time only replace battery when non functional. This article will help you find the best functioning battery for your RV, the way you use it. Most of these people went to an RV Dealer where they have a rack of batteries and you get to pick a pretty one. Your battery must state the AH (Amp Hour) capacity on the label or it is not a deep cycle battery. I decided to write this article because 75% of the people I help have the wrong battery for them installed in their RV. Golf Carts batteries are typically made better and have thicker lead plates.
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