Skip to content

Van Build

Close this search box.

How Long Does It Take To Charge RV Battery?

    Updated December 12, 2022

    It’s likely that you have asked this question if you are an RV owner who has had the sad experience of discovering your battery entirely dead. The answer to this question will rely on two key factors: the battery’s amp-hour rating and the charger’s charge rate. This is because it will take roughly 10 hours to fully charge your RV’s battery if your battery has a 100 amp-hour rating and your charger’s output is 10 amps.

    How Long Does It Take to Charge RV Batteries?

    A single brand-new RV battery takes between 12 to 16 hours to completely charge. Do not interrupt the power once you have chosen to charge the battery. To ensure that the battery charge capacity is reached, make sure the power source is connected during those hours.

    There are many various types of battery chargers, and each one has a different rating for amps per hour. Many common chargers only provide 5 amps, which implies that if your battery is 100 AH, it would take about 20 hours to fully charge it. Remember that hooking your battery into your RV while it is charging can help it charge more quickly, reducing the charging time to 5–6 hours, regardless of the amp per hour or size of your battery.

    According to the estimates from above, it might take close to 110 hours to charge a pack of four 100 AH RV batteries. To prevent this from happening, try to maintain your batteries charged at all times using a compact charger. Recharging dead batteries takes far longer than it does for partially charged ones. Most common RV batteries release 4% of their charge each week. Because of this, you might want to think about getting a small battery charger (between 2 and 5 amps) to keep your batteries partially charged when not in use. This will assist prevent your batteries from entirely burning out.

    Have your battery tested by a professional if you are unsure about its state. RV batteries can be brought to almost any repair facility or dealer and examined. Additionally, confirm that fluid is submerging the battery’s internal plate structure. If not, you can take off the caps and fill the filler tube with distilled water all the way to the bottom. After doing this, you should charge the battery right away. Wear gloves and safety glasses for protection when filling the battery with liquid because there is powerful acid within. If you don’t feel confident doing it yourself, hire a professional at a repair shop to handle it.

    Even though you might be under pressure right now, make sure your RV battery is fully charged before leaving on a trip. While the battery is being fully charged, make sure the battery is not attached to anything. It is one thing to use a trickle charger, but when fully charging the battery, avoid connecting generators or other devices to it. Checking your battery at least 48 hours before your travel will give you plenty of time to charge it without having to worry about overcharging it.

    Some people elect to use their generators to recharge the batteries in their RVs, particularly if they require a charge in an emergency. Generators were not designed to be used for continuous charging; even while they are a great alternative for emergencies, you should spend your money on a smart charger. A conventional generator only produces 12 volts, however a battery needs to be charged with 13.6 volts. If you proceed at this rate, it can take 5 to 6 hours to fully recharge a partially depleted battery. Get a heavy duty generator with at least 4,000 watts of capacity if you want a good generator that can be used to charge in an emergency.

    There are numerous battery chargers available with a wide range of amps and sizes. You should think about having one for when you are traveling as well as a smart charger that may be maintained at home when choosing one for your RV. As RV batteries are utilized when there are no available external power sources, keeping your batteries charged is crucial. In the event that your generator fails, these would help keep your RV functioning (lights, air, heat). Even though batteries are incredibly limited on their own, they can nonetheless make your travels enjoyable while you wait for a more robust power source.

    What Is The Fastest Way To Charge RV Batteries?

    Are you trying to find the quickest way to recharge the batteries in your RV? This section of the essay will address this issue and give some advice from other RV owners who have dealt with similar situations. We will present all of the varying viewpoints on what charges batteries the fastest so you can decide which option is best for you. Learn how to quickly charge the batteries in your RV by reading on:

    A converter Many RV owners advise using the converter’s power to charge the batteries. In order to charge the batteries effectively, you would have to hook your RV into a generator or shore power during the charging process. Depending on how low the battery is on your device, this could still take 3 to 4 hours. You should allow at least 10 hours for your battery to fully charge if it is entirely dead.

    Shore Energy While not all RV owners concur, a sizable number of them have discovered that charging batteries with shore power is a quicker way to do it. Additionally, you shouldn’t need to switch your RV’s power source when charging batteries when using shore power, which is said to be more fuel-efficient. Shore power is likely the quickest option to charge your batteries, but keep in mind that you shouldn’t use all of it at once.

    Vehicle alternator Some RV owners advise using the truck’s chassis alternator to power battery charging. This might be a speedier method than the two above, depending on the type of truck you have (and how much power you offer). This is probably just as quick as utilizing the shore power from your RV, even at low power levels. If you don’t have a truck, this would obviously be out of the question, but it would be a nice concept to think about, especially if you are short on time and need a very quick charge for your batteries.

    Generator is still a wonderful one to think about in a crisis even though it might not be as quick as the last few suggestions. The majority of common generators you might utilize for your RV won’t produce much power and will likely take a reasonable length of time to fully charge your batteries (in between 10 and 24 hours). Your generator will most likely be speedier and an excellent alternative for charging your RV batteries if it has 4,000 watts or more power.