How to Change Batteries in Swiffer Wet Jet: A Comprehensive Tutorial

A Detailed Guide to How to Change Batteries in Swiffer Wet Jet

Apr 30, 2022
Learning how to change batteries in Swiffer Wet Jet can be daunting if you've never dealt with such appliances. But once you've decided to go with this amazing mop, it's a task you should always be proficient in.

The Wet Jet allows you to spray the cleaning solution on the floors, which is one of its biggest highlights. But this feature needs a battery-powered pump to function. To keep your Wet Jet as effective as normal, keep reading to find out how to replace its batteries.

How To Change Batteries In Swiffer Wet Jet

Get Correct Batteries For Your Wet Jet

Before carrying out any Swiffer battery replacement or maintenance, make sure you know which kind of battery your mop runs on. Each unit needs four AA batteries for its operation. You can use either rechargeable or disposable models; both of them are fine.

Use AA batteries for your Wet Jet

Use AA batteries for your Wet Jet

There are more considerations to this choice, which we will discuss below. Skip to that part if you want to dive into batteries and how to choose the best ones for your mop.

For now, assume that you have suitable batteries on hand. With each Wet Jet unit, Swiffer may include some batteries already. You can get them out and use them for this replacement.

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Find The Battery Compartment

It’s critical for you to know where to put batteries in Swiffer Wet Jet.

Turn off the switch of your mop, even if it's already stopped. Place its cleaning pad against the floor and hold the handle in your comfortable position.

Look at the top of the Wet Jet's main body, and you can find the battery compartment where the handle is attached. It has a lighter color and an arrow printed on the surface.

Remove The Battery Compartment

Press the arrow down with your fingers, then slide the whole compartment up. If you find it hard to push it up towards the handle, use a ruler or stick. When the piece gets loose, it's easy to take it off completely as there is nothing left to hold it into the main machine.

Flip the unit over, and you can see how it holds all four AA batteries inside. There are two of them on each side of the compartment.

Replace The Batteries

Take all the old batteries out and insert the new ones into this holder. Follow instructions printed on the plastic so you can line up the batteries properly.

You can also remember the way the old batteries are positioned as a reference. Make sure the batteries are loaded up and stay firmly in their place.

How the batteries should be installed

Install The Holder Back To The Machine

Flip the battery compartment over so you can see its top side. Place the mop on the floor and find the original place of the compartment again.

Align the compartment with the main body and slide it in. It should click in, indicating that the battery compartment has been properly installed.

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Test Your New Batteries

Follow the Swiffer WetJet instructions and turn it on to see if the pump of your mop releases any liquid. If it doesn't, try to disassemble the batteries and install them again properly.

How To Choose Batteries For Your Swiffer Wet Jet

Like most advanced household and customer devices these days, your Swiffer Wet Jet uses batteries to power itself. But instead of employing common built-in rechargeable technologies like lithium-ion (Li-ion) batteries, which are used in most smartphones these days, it relies on four AA batteries.

This traditional choice brings down the cost of the Swiffer Wet Jet. You also don't need to worry about it running out of power on a regular basis like your phone. All you need to do is to replace those batteries once in a while.

They aren't expensive, but choosing AA batteries can be an intimidating task. Many have forgotten or simply aren't familiar with these standard cells, to begin with. Plugging in a charger is what we need to do whenever our smartphone runs low.

In addition to knowing how to change Swiffer batteries, the section below will help you gain a basic understanding of AA battery technology and how to pick the best ones for your mop.

Components Of An AA Battery

Like other technologies, these batteries are composed of three primary parts: anode, cathode, and electrolyte.

By working together, they convert the chemical energy stored in each battery into electrical energy, which in turn powers your devices.


If you've never bought AA batteries before, you should know that there are two types of them, depending on whether you can recharge and use them again.


Disposable models are older and sold at cheaper prices. They use primary cells (such as zinc-carbon) to do the job. These single-use batteries are still the most commonly used form as they are widely available and don't cost much. On the other hand, you would need to pay a lot for a proprietary Roomba battery, for instance.

The cells of a non-rechargeable AA battery use irreversible chemical reactions to convert chemical energy and create current.

A lot of reactants are involved during this process. They are added into the battery during manufacturing and run out gradually when in use.

When a disposable battery has no reactants left, it can't produce electrical energy anymore and becomes useless. You will have to throw it away and replace it with a new one.

That said, they can keep an electrical device running for a long time before a replacement is needed. Users also don't need to buy a charger to bring up the energy level, making them a hassle-free and affordable option.

Low-power devices such as smoke alarms, toys, remote controls, and clocks are perfect applications of this battery type. They don't drain much power. You can be rest assured that your device can be left alone for many months or even years without problems.

Keep in mind that you will need to replace non-rechargeable batteries eventually. And if you're an eco-conscious consumer, its single-use nature can be a deal-breaker.


As their name suggests, these batteries can be charged and used again and again. There is actually a limit to the number you can do this as the capability of the batteries (how much power it can hold) decreases over time. But in reality, you can keep using them for a very long time before this can be an issue.

Rechargeable batteries are more eco-friendly

Rechargeable batteries are more eco-friendly

The reason you can recharge and bring back their power level is that these batteries use reversible actions to convert chemical energy into electrical energy. When they're connected to a charger, the power source restores the charge that has been drained.

Manufacturers implement newer and more complicated technologies to make rechargeable batteries. They are more expensive and need greater care from users to work as intended.

Reducing the amount of e-waste in the environment is another upside of this battery type. Rechargeable batteries have a longer timeline. By the time you need to dispose of a unit like this, several single-use batteries may have been thrown away already.

However, the voltage rating of these batteries is typically not as high as that of traditional models. It can put a dent in the performance of your device if it relies on a higher rating to work.

When you opt for rechargeable batteries, choose NiMH models whenever possible. It's the newest technology in these small-form batteries.

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Storage Capacity

Each battery technology has its own capacity, measured in milliampere-hours (mAh). For instance, zinc-carbon AA batteries can hold up to 900 mAh, while high-quality nickel-metal hydride (NiMH) rechargeable models can have a capacity of up to 2,750 mAh.

Manufacturers print this figure on the label of their products. It's usually the total storage capacity - the maximum amount of charge they can hold. The higher this number, the longer the battery can last.

The actual power batteries have is lower than those official numbers. But they are still a good indicator for the real capacity rating.

Power Rating

Not every AA battery has the same power rating, which is the highest input it can put out. A model with a higher rating means the pump of the Swiffer Wet Jet can operate normally even when it demands a stronger current.

Pack Size

Most manufacturers offer their batteries in various packs, in which packs of 4 or 6 are the most common.

Buying a bigger pack than the number of count you require may seem unnecessary and a waste of money. But actually, it's a recommended strategy, especially for rechargeable models.

For example, the Wet Jet needs four batteries to operate. If you buy a pack of eight or two packs of four, you can replace the whole set and continue to use your mop without having to wait until the old batteries are fully charged. You can just charge them while using the four batteries left in the pack to clean your house.

You should also take into account the number of batteries your charger can handle at once. Some can only charge a single battery at a time, which leads to a very long charging time for the whole set. A bigger pack with abundant batteries doesn't cost much more but allows you to proceed with your cleaning at any time.

This advice also applies to single-use batteries. Having extra units around can come in handy in many emergency situations. No one wants to run to a hardware store to buy some batteries to clean their house before friends come over.

Charge Cycle

Charging an AA battery

Charging an AA battery

Many models can be charged and reused up to hundreds of times. This is on the lower end of the market.

Many high-quality batteries can last 1,000 or 2,000 cycles. Find them if you want your batteries to last as long as possible.

Rechargeable batteries lose their capacity eventually. But a higher cycle count means this process happens more slowly. Go for at least 1,000 cycles, and you can have peace of mind for a few years.

Low Self-Discharge

All models suffer from the phenomenon called self-discharge. Even when you don't connect them to any devices, they start to lose charge over time. The amount of power a battery holds decreases over time. You may have less than a full charge when your batteries are put to use.

Rechargeable batteries have a faster self-discharge rate than disposable models. Some manufacturers make lowself-discharge (LSD) batteries.

They come with an added cost. But these models are still usable after many years, in contrast to regular versions, which can lose a significant amount of charge or even become completely drained after a few months.

NiMH batteries have the highest self-discharge rate. They can be a bad choice if you want to put many batteries in storage with little maintenance.

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Though this isn't a strict requirement for small batteries, models carrying a warranty are always nice to have. When something goes wrong (such as it runs hot or you can't charge it), you can ask the retailer or manufacturer for a Swiffer WetJet battery replacement.


There are a lot of reputable manufacturers that make high-quality AA batteries, including Energizer, AmazonBasics, Tenergy, and Panasonic, among other names.


Most batteries cost from 0.5 to several dollars per count. A super expensive model doesn't necessarily mean it offers significant performance. Aim to pay around $2-3 for each rechargeable battery. This price range can guarantee the highest value for your money.


For new users, figuring out how to change batteries in Swiffer Wet Jet can be difficult. This is actually straightforward and won't take you much time when you've learned how to do it.

Much of the task comes from your choice of batteries used in your Wet Jet. You can take advantage of the default batteries Swiffer put in the box in the first replacement. After that, choosing the right AA batteries can keep your mop in good condition while saving time in the long term.


  • 01. Does Swiffer Wet Jet Take Batteries?
  • Yes, it uses replaceable batteries as its power source.

  • 02. What Kind Of Batteries Does A Swiffer Wet Jet Take?
  • The Swiffer Wet Jet battery size is AA.

  • 03. Where Do The Batteries Go In A Swiffer Wet Jet?
  • They're located in the battery compartment on the top of the main body.

  • 04. How To Take Care Of Rechargeable Batteries?
  • You should store unused batteries in a cool and dry place. Don't overcharge them. Stop charging when the charger shows a full battery.

    Choose a high-quality charger. Remember that a faster charging rate can make the degradation occur faster. Charge them at normal rates to preserve their capacity and long-term performance.

  • 05. What Is A Good Alternative To Swiffer Wet Jet?
  • Many wet-dry vacuums can act as an upgrade. For suggestions, look at our Bissell Crosswave 1785.

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