A recreation vehicle will use two different types of batteries. A starting battery for the engine and a RV deep cycle battery sometimes called the “house battery” used to run the lights, TV & pumps, etc.
RV house batteries can be a single 12 volt RV battery, two 12 volt RV batteries connected in parallel or two or more 6 volt deep cycle batteries wired in series and possibly series & parallel. Now, Lithium RV batteries are in stock for longer life and with a ten year warranty, more expensive.

The best deep cycle battery for an RV is a battery that can last lots of camping trips and still provide power.

We always recommend using two or more 6 Volt RV deep cycle batteries vs a 12 Volt RV deep cycle battery if you dry camp. Unless you want to spend the money and buy the high cycle lithium deep cycle battery.
Both 12 Volt RV deep cycle and 6 Volt RV deep cycle are available in standard flooded and AGM maintenance free chemistry.

The best lead acid deep cycle battery in terms of service and price in our opinion is the Leoch AGM battery with a two year warranty .
The reason why we think Leoch battery is the best is because of their consistent quality from a robotic welding process and 100% quality assurance performed before batteries are shipped. Most battery mfg will ship the batteries 80% charged but the Leoch comes 100% charged out of the box.

For dry campers, use two or four 6 Volt batteries wired in series to create 12 Volts. And four 6 Volt batteries are wired in series & parallel to create 12 Volts.

Four 6V batteries wired in series & parallel for 12 Volt and 2x capacity

We always recommend using a solar system to charge and maintain your RV deep cycle battery. When the RV is not being used, the solar system will maintain the house batteries.

Victron MPPT Charge Controllers are always in Stock at DCB

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The Best 12 Volt Deep Cycle Batteries for RV

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RV Deep Cycle Battery For Sale

6 volt deep cycle RV batteries and why they are better if you dry camp.

6 volt Battery Buyers Guide

Deep Cycle 6 volt Batteries have thicker plates than 12 volt deep cycle batteries and are able to deliver more long term energy. If your RV lifestyle is traveling park to park then a 12 v deep cycle battery with 80 – 100 amp hours will work fine. But if you camp in remote places and need as much stored energy as possible, you should use two or four 6 volt batteries = 220 ah & 440 ah respectively.Voltage on a fully charged battery in good condition will read 2.12 to 2.15 volts per cell (about 12.75 volts for a 12 volt battery, or 6.40 for a 6 volt) Specific Gravity Readings to determine State of Charge:12.75 & Above = 100% Charged

12.60 to 12.74 = 85 to 100% Charged
12.40 to 12.59 = 75 to 85% Charged
12.20 to 12.39 = 50 to 75% Charged
12.00 to 12.19 = 25 to 50% Charged
12.00 & Below = Fully Discharged

Connecting Deep Cycle Batteries in Series and Parallel Guide Click Here For Charger Voltage Settings Click Here

Battery Delivery and Installation

RV Deep Cycle Battery for Sale in San Diego

Trojan RV Deep Cycle Battery – 6 volt Trojan T-105 225 amp hour
Available in Traditional Flooded or Sealed Trojan AGM Battery

Trojan Battery history: George Godber & Carl Speer founded Trojan Battery Company and in 1952 invented the electric golf car battery. Trojan Manufacturing Features and Benefits:

Do not use high speed production process for plate mfg.
Produce Cast grids with heavy Wire and Frame design.
Maxguard Advanced Design Separator
Use proprietary Alpha Paste on each Grid.
High cycle life
Reduced water consumption
Less battery maintenance

Trojan Battery Charging and Maintenance Guide*Price for 6 volt Trojan T-105 Batteries for Sale: $198 ea *(Cores are required to void core charge of $20)
Free Local Deliver for Two or More RV 6 volt batteries ordered

Battery Delivery and Installation

Rate of Discharge:	447 min. @ 25 Amps \| 115 min @ 75 Amps
Amp Hours {AH}:	225 AH at 20 Hour Rate
Weight:	62 Lbs
Dimensions {L x W x H}	10 ⅜ in x 7 ⅛ in x 10 ⅞ in
50% DOD #Cycles:	650 Cycles

6V US Battery part number US-2200XC in stock

Price for 6 volt US 2200XC Batteries for Sale: $165 ea *(Cores are required to void core charge of $20)
Free Local Deliver for Two or More RV 6 volt batteries ordered 6V 232Ah

Economy Price Saver RV Deep Cycle Battery in San Diego

US Battery 1800 RV Deep Cycle Battery – 6 volt RV Deep Cycle Battery 208 amp hour. Mfg in California. P/N US 1800

US Battery 6 volt Flooded Lead Acid Deep Cycle Battery is not as robust as the US 2200 but is a good value for $125. *Price for 6 volt US 1800 Batteries for Sale: $125 ea *(Cores are required to void core charge of $20)

GC2 size 6V Flooded Lead Acid Deep Cycle Battery for RV

Battery Delivery and Installation

Want Maintenance Free RV Deep Cycle Batteries?

Leoch 6 Volt RV Battery are Non Spill, Sealed and Maintenance Free!

Rated Better 6 Volt Battery for RV Can Last 4-5 Years When Maintained with a Solar System or Plugged into Shore Power

Sealed – Maintenance Free 6 Volt AGM 224 AH RV Deep Cycle Battery by Leoch Battery

Leoch LDC6-224 6 volt 224 amp hour Maintenance Free Battery Price: $275 ea plus tax with exchange* (core charge of $20) BCI Group Size: GC2

Terminal Type	Button
Amp Hours {AH}:	224 AH at 20 Hour Rate
Weight:	64 Lbs
Dimensions {L x W x H}	10 in x 7 in x 9.06 in
Initial Charging Current: Charging Voltage: Cycle Use Float Use	Max Current <90A7.2-7.4v(Time 14-16Hr) 6.75-6.9v

Battery Delivery and Installation

The Best Deep Cycle 12 Volt RV Battery

12 Volt RV Batteries are commonly found on travel trailers inside a battery box behind the propane. The batteries are charged by way of a converter located inside the trailer behind a fuse panel.
These lead acid RV batteries have a mix of starting and deep cycle battery properties.

If your RV lifestyle is traveling park to park, plugging into shore power, then one or two 12 V RV batteries are a simple solution. Because the onboard converter is providing power to the trailer while plugged into shore, batteries do not have to be high cycling. Typical 12v lead acid battery capacity is 80 – 100+ amp hours and come in three group sizes, 24, 27 and 31.
If your camping style is dry camping or off grid, then do not use 12v lead acid batteries. Select either 6V GC2 deep cycle batteries or 12V lithium deep cycle batteries.
We always recommend a RV solar system to be implemented for the longest life of your battery.