Do I Need a Battery for My Travel Trailer – Decide Outside – Making Adventure Happen

Do I Need a Battery for My Travel Trailer

If you have a travel trailer, a battery should be essential to run the electrical appliances. However, the topic is a bit controversial, and some people claim that you can go without a battery.

In order to know more, we need to find out why people choose batteries while others don’t. Do I need a battery for my travel trailer? I think so, and we’re about to find out why.

Perks of Using a Battery for Your Travel Trailer

Let’s start with the pros. There are critical aspects that would require using a battery for your travel trailer.

Running the Systems

You’ll need a battery in order for the taillights, marker lights, and brake lights to function properly. It’ll also power the electric wheel brakes to run efficiently.

12-Volt Appliances

A battery is important if you need to make sure every 12-volt appliance is running smoothly. That includes fridges, furnaces, and water pumps. Moreover, it can charge the fridge, which will assure the cooling of your food at all times.

Converting Current

Imagine you’re at a campsite and you need to convert the current. I know you’ll probably say that there’s shore power, but what if it fails? In this case, you’ll need to have a battery for converting the current.


Without a battery, the detectors for gas leaks (like propane and carbon monoxide) won’t work. Fire detectors won’t work as well, which isn’t the safest option if you’re on the road.

Keep in mind that you’ll need the battery if you want to use any 12-volt lighting. Otherwise, you’ll end up with regular flashlights, which might not be the most practical option at a campsite.

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How Can You Go Without a Battery

If batteries have all these benefits for travel trailers, then why would people think we can go without them. Surprisingly, there are some reasons why you might not need a battery at all.

Travel Trailer Won’t Be Damaged

For starters, you won’t be damaging your travel trailer without a battery. It’ll work just fine, given that you don’t encounter any power outage.


The second reason is related to current converters. If you opt for a modern convertor, like Progressive Dynamics  Power Converter with Charge Wizard, you won’t need a battery to work as a buffer.

What Are the Types of Travel Trailer Batteries

There are two types of batteries that you can choose from; deep-cycle batteries and lithium batteries.

Deep-Cycle Batteries

Deep-cycle batteries are the most common and convenient option. They’re affordable, and they’re similar to car batteries. The only difference is that they provide a more stable amount of current than car batteries over a larger period.

There are 3 types of deep-cycle batteries:

Flooded-Cell Batteries

These are the cheapest on the list. They need excessive maintenance and they tend to be damaged faster. This means you’ll need to clean them and check the water level frequently.

Absorbed Glass Mat Batteries

These ones demand less care than flooded-cell batteries. They charge faster and they can handle your travel trailer at only 20% of charge level (though not recommended). AGM batteries perform fine in cold weather, yet their only downside is that they tend to overcharge, which can damage them in the long run.

Weize 12V 100AH Deep Cycle AGM SLA VRLA Battery for Solar System RV Camping Trolling Motor, in Series 24V 36V 48V

Weize 12V 100AH Deep Cycle AGM SLA VRLA Battery for Solar System RV Camping Trolling Motor, in Series 24V 36V 48V

  • Deep Cycle Battery 12V 100 Amp Hour Sealed Lead Acid Rechargeable ; Parcel: 1 x Battery (screws included, but no wire harness or mounting).
  • Dimensions: 12.99x 6.73x 8.43 inches (Replace UB121000, Renogy 100 AMP Hour). High Performance, Deep Cycle: Long Service Life and Deep Discharge Recover.
  • Used For Solar Panel Wind Off-Grid Applications, RV House Van Camping Trip, Travel Trailer, Mini Kota/Cobra/Sevylor Trolling Motor, Back-up Sump Pump, Electric Mobility Scooter Wheelchair.
  • Also For Electric Vehicles, Golf Carts, Hunting, Lawn and Garden Tools, Portable Tools, Toys and Hobby, UPS System, Industrial and Medical Equipment,Emergency Lighting, Leisure, Alarm Security and more.
  • TL12100 or LFP12100 You Will Receive, Send Randomly,They Are the Same Quality,But Different Production Batches, Pls Do Not Worry. Please Contact Us if Any Problem or Consuion!

Gel Batteries

Gel batteries also require less care than flooded-cell ones. They’re a good option if you use your travel trailer in freezing weather.

Weize 12V 100AH Pure Gel Deep Cycle Rechargeable Battery, for Solar Power System RV House Trolling Motor Wheelchair, Universal

  • 12V 100AH is Gel Electrolyte Technology Deep Cycle Sealed Battery; Parcel: 1 x Battery; Size: 12.8(L)*6.8(W)*8.5(H) inch; TL12100 or LFP12100 You Will Receive, Send Randomly,They Are the Same Quality,But Different Production Batches. With 1 Year Warranty.
  • AGM and GEL batteries are both VRLA (Valve Regulated Lead-Acid) batteries. GEL means colloidal Lead-Acid, AGM means Liquid Lead-Acid. colloidal GEL is better liquid AGM. GEL Electrolyte Technology: Deep Cycle, offers excellent recovery after deep discharge under frequent cyclic discharge use. GEL Battery has longer cycle life than AGM Battery, GEL sepecially design for daily use.
  • Long Life- Heavy duty lead-calcium grids ensure mild corrosion and enable a long designed service life of 15 years’ standby use under optimal float charge conditions and below optimal operating temperature of 25℃.
  • Low Self Discharge- the use of lead-calcium grids alloy, Weize batteries have low self-discharge and reliable performance. In room temperature, self-discharge ratio per month of Renogy battery is about 3% of the battery capacity.
  • Used For Solar Panel Power Bank System, Solar VRLA 12V 24V 48V Off-grid Applications, Trolling Motor, Mobility Scooter Wheelchair, Electronics, Wheelchair, Scooter, Industrial and Medical Equipment, Golf Carts, Hunting, Lawn and Garden Tools, Portable Tools, Toys and Hobby, Emergency Lighting, Leisure, RV House, Security and more. (Not for Motorcycle ATV Engine Starts)

Lithium Batteries

Lithium batteries are more expensive, and so they’re more efficient. They require less maintenance, as they’re smaller and lighter. Moreover, you won’t need to check the water level every now and then.

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In addition to all that, they have a longer lifespan than most deep-cycle batteries.

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How Long Will the Battery Last

The answer to that question depends on the type of the battery. Despite that, with proper maintenance, your battery should last for an average of 5 years. Batteries aren’t cheap so let’s see how you can get the best out of them.

How to Maintain Your Battery

If you want the batteries to last, you’ll need to check up on them regularly. I’d recommend you check them once a month if you use your travel trailer constantly.

You should always check your manufacturer’s instructions on how to maintain your battery, but this is some basic advice that works with every battery.


Done right, charging can extend the lifespan of your battery. There’s more than one way to charge the battery, either by a converter or a regular charger. However, the most accurate way to charge it is through the microprocessor-controlled charger. Schumacher SC1359 15 Amp 3 Amp 6V/12V Fully Automatic Smart Battery Charger Maintainer Auto Desulfator Auto 6V/12V Battery Detection For Cars, Trucks, SUVs, Marine, RV Batteries

No matter what way you choose, you should never overcharge your battery. Furthermore, you shouldn’t let it drain. If your battery’s charge level is below 80%, then that’s your cue to charge it. Don’t let it drop below 50%.

Water Level

If you have a flooded-cell battery, the level of water decreases after every charge. You need to regularly check that and add distilled water. That way you’ll compensate for the lost water and avoid sulfation.


You’ll need to clean the battery terminals frequently, in order to remove any corrosion. You can go for a battery terminal cleaner, CRC 05023 Battery Cleaner with Acid Indicator - 11 Wt Oz.but there’s always a way to make that at home. All you’ll need to do is mix one cup of baking soda with one gallon of water.


During summer, most travel trailers are usually on the road. When the winter comes, they’re parked. The key to ensuring the battery won’t be harmed during winter? Smart storage.

As a rule of thumb, if you leave the battery in your travel trailer while being parked in winter, two things will happen: the flooded cells may freeze, and the battery will be drained.

To avoid all of that, you need to disconnect the battery and keep it home during winter. Make sure you give it an overnight charge every month to maintain it. That way, your battery will be ready for the road when the winter season is over.


Replacing your battery with a new one is a piece of cake. You just need to follow the instructions. Make sure you put on rubber gloves for your safety.

The first thing you should do is turn off all the systems and appliances that can use the battery’s power. Then, start by unplugging the negative cables from your battery, followed by the positive ones.

When all is set, clean the cables and the new battery’s terminals. Now install the new one by connecting the positive cables first then the negative cables, and you’re good to go.


Some people think that monitors are some kind of luxury, but in my opinion, they’re essential. A decent monitor with an LCD screen will help you determine the exact level of the battery’s charge without a hassle. Some monitors can also allow you to check the battery’s temperature. Victron Energy BMV-712 Smart Battery Monitor (Grey)


That being said, a battery isn’t a necessity, yet it’s a backup. You might not need one with a modern power converter, but there’s no harm in having a battery. Better safe than sorry.

Now that you have all the facts you might need about travel trailers battery. Do you need a battery for your travel trailer? I think so, but it’s your decision to make after all.

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