RV BATTERY SYSTEM

Batteries may look the same on the outside, but they can be very different on the inside. That’s why it’s critically important you only use deep cycle batteries to power your RV’s on-board equipment and electronics.

Automotive-style batteries used for engine starting are not designed to support the sustained power draws of fridges, microwaves, TVs, satellite dishes, electric pumps, cell phone chargers and everything else that plugs in and turns on inside your RV.

RV Care Traveler’s Choice deep cycle batteries are optimized for RV use. They will last much longer and deliver more reliable performance than regular automotive batteries.

For larger RVs with many electronic devices tied into your battery system, our AGM and gel batteries will provide a more premium power solution to support those extra power demands.

AGM and gel batteries are completely interchangeable with regular flooded batteries, and their fully sealed, never add water design eliminates the need for periodic watering.

If you will have access to AC power to recharge your battery system, this question is not as critical as if you were going completely “off the grid”.

If your battery system is not large enough to accommodate your power needs, your family could suddenly be left in the dark.

No one wants to end their holiday like that!

As a rule of thumb, your battery system should have enough capacity to provide at least twice the expected power draw required before the batteries will be recharged.

Your RV Care Dealer can help you estimate your power demands and recommend the right sized battery system to ensure you have adequate power throughout your entire trip.

To maximize battery life, your battery system should not be discharged more than 50% between recharges.

That’s why it’s good practise to fully recharge your battery system after every trip, regardless of how long the batteries were in use.

It’s always a good idea to do a quick check of your battery system before heading out on the road. A little preventive maintenance ahead of your trip will help ensure a safe and hassle-free vacation*.

Here is a quick checklist of things you should visually check to help ensure your batteries are in good working order.

• Are the battery terminals clean so that there’s a solid connection between terminal and cable leads? If not, apply a mixture of baking soda and water to the terminals (and cable leads if necessary) and scrub lightly with a wire brush. Maintaining a clean, solid connection will ensure the batteries are able to operate at peak efficiency.
• Is the top of each battery reasonably clean? If not, wipe away any dust and grime with a warm water and baking soda. Otherwise, moisture droplets on the dirt could create a conductive electrical pathway that causes the battery to continuously discharge. Keeping battery tops clean will help ensure you obtain maximum performance and life from your battery system.
• Is the case and cover of each battery free of damage? Batteries with cracked and/or leaking cases should be replaced as soon as possible.
• Bulging batteries can indicate blocked safety vents. If your vents are clear and your flooded battery begins bulging outwards during charging, discontinue charging immediately and replace the battery. (Bulging in AGM batteries during or after recharge is not necessarily cause for concern. These batteries are fully sealed and so a difference between internal battery pressure and the outside environment can cause an AGM battery to have a slight convex or concave appearance. This is perfectly normal, unless the bulging is severe.)

*Important note: When handling batteries be sure to wear protective gloves and eyewear. Battery electrolyte is highly acidic and can burn through skin and clothing. If the electrolyte should contact skin or eyes, flush extensively with large quantities of cool water and seek medical attention as soon as possible.

Flooded deep cycle batteries can lose some of their water through evaporation as the battery heats up during the recharge process.

This is part of a flooded battery’s normal operation, but it means that the water level inside each battery cell must be checked on a regular basis and topped up as necessary*.

Always use distilled water and never add water past the fill line inside each battery cell. ALWAYS add water to a battery after it has fully recharged and cooled down. NEVER add water to a battery before recharging it.

The water level will rise as the battery is being charged, so adding water while the battery is discharged could cause it to overflow and lose some of its acid during the recharge process. This will reduce the power-generating capability of the battery.

IMPORTANT: Never check the water levels of a battery before the battery has fully cooled. Recharging a battery causes it to heat up. Removing a vent cap to access the water reservoir could therefore cause the battery to spew acid and cause serious injury.

NEVER CHARGE A FROZEN BATTERY. Doing so may cause the battery to explode. Always allow a battery to come up to room temperature before recharging it.

*Important note: When handling batteries be sure to wear protective gloves and eyewear. Battery electrolyte is highly acidic and can burn through skin and clothing. If the electrolyte should contact skin or eyes, flush extensively with large quantities of cool water and seek medical attention as soon as possible.

Note that AGM and gel batteries are fully sealed and maintenance-free, which means they never need to be watered. These batteries are therefore a great alternative to regular flooded batteries for individuals who are not comfortable with working around batteries.

How long your batteries will last depends on many factors, including how often you use them, how much power is removed from them on a regular basis, their average operating temperature, how they are maintained and how they are stored during the off-season. On average, you can expect your battery system to last 2-3 years or perhaps longer when properly sized for your needs and adequately maintained.

If your batteries are two years or older, we recommend you ask your local RV Care Dealer to check battery state of health at the beginning of each season, as well as on every service visit. They can give you a reliable estimate of how much longer you can expect your batteries to last.

For larger RVs with many electronic devices tied into your battery system, our AGM and gel batteries will provide a more premium power solution to support those extra power demands. This helps extend battery service life so that you get the best value for your power investment.