Best TENS Unit Replacement Pads
A TENS unit can be a lifesaver when it comes to treating and managing pain, but the unit is only as good as the pads you use with it. These TENS machine pads do not last forever, and after a certain number of uses, they no longer adhere properly to the patient’s skin. A loss of skin contact makes the device ineffective: it is, after all, a form of transcutaneous stimulation (or electrical impulses sent through the skin).
To achieve the greatest benefit from your TENS device, you need a high-quality replacement pad you can count on. We have narrowed down our favorites to a top three list to make your shopping much easier. Included below you will also find some useful tips about using, removing, and replacing pads and things to keep in mind when shopping for them.
TENS Unit Replacement Pads: Our Top Three Picks
TENS/EMS Unit 20 Snap Tens Unit Electrode Pads
Number of Pads: 20
Connection: 3.5 mm
Brand: Med X Tens
This pack of 20 premium-quality TENS electrode pads is a favorite replacement kit for many users. They are easy to apply and remove, though some users with sensitive skin may experience some degree of irritation.
The packaging is double-sealed for freshness, and according to the manufacturer they last for up to 25 applications.
Number of Pads: 8
Connection: 2 mm
Brand: Auvon
This eight-pack of latex-free pads is compatible with several TENS units and has been thoroughly testing to ensure they work even for those with sensitive skin. The larger TENS pad size (5 cm by 10 cm) makes them easy to apply, especially across large flat areas of skin.
The pads can be washed under tap water to keep them clean, and they should only be applied to clean and dry skin. This pack of TENS machine replacement pads is backed by a 12-month warranty, and they are also among the most flexible and comfortable pads on the market.
Number of Pads: 20
Connection: 2 mm
Brand: Auvon
Auvon also offers TENS unit users a 20-pack of pads in a popular two-inch square shape. These Made in the USA pads are durable and long-lasting and rigorously tested for safety.
The 2 x 2 TENS unit pads from Auvon fit more than just Auvon devices. This pack works with several other TENS units, including United Surgical TENS and truMedic TENS units among others.
TENS Replacement Pads: A Buyer’s Guide
Shapes and Sizes
TENS replacement pads come in a variety of shapes and sizes, which may come as a surprise to new TENS device users. You might expect that ordering replacement pads is simple, with one “universal” TENS unit pad choice, however, you will quickly find that there is a great selection.
The TENS replacement pads you will find on the market are usually broken down into four different shapes: square, round, butterfly, and strips.
The square replacement pads, which measure two inches by two inches, are the most common size you will find. Typically, you would use four square pads with a TENS device and achieve a uniform pulse distribution. The square pads are easy to place, with four pads hitting multiple points of pain.
The round replacement pads for TENS units are either oval or circular, and patients prefer these for small joints (elbows and knees) or for use on the abdominal region. They are extremely small and also easy to use to target specific areas of pain.
The butterfly-shaped TENS replacement pads are favored for those targeting lower back pain, which is a common reason many people use TENS unit therapy. They are larger than the round or square pads, so they work well across the contoured shape of the back.
TENS replacement pads also come in strips, sometimes long enough to wrap around certain parts of the body, such as a thigh or bicep. This kind of TENS unit therapy is thought to tone muscles and increase circulation. The strip pads are also ideal for flat areas.
Connection and Fitting
In addition to shapes and sizes, you will also need to understand the variety in connections and fittings when it comes time to replace your TENS device pads.
Most TENS devices will either have a pigtail (pin type) connection or it will have a snap connection.
There are also many alternatives to these common types, and you may find that your TENS unit does not work with universal electrodes. We will review these fittings and connections below, to make it easier for you to identify how your device works and what pads you should buy.
- Pigtail: With this type of connection, a short wire extends from the pad, connecting to the electrical leads. They are easy to attach, and the pin usually measures 2 mm.
- Snap: The standard length for a snap connection is 3.5 mm, and this kind of connection is often favored for its security. Once you snap the TENS electrode into place you feel assured that it will stay put and your TENS unit can do its job effectively.
- Omron: These devices have a specific fitting requirement that does not work with the standard 3.5 mm snap connections. These machines require 2.2 mm instead.
- Compex EMS: Even though these devices are designed with a 3.5 mm snap connection, they do not work with the universal 3.5 mm snap electrodes because of a special fitting issue. With a Compex device, you will need to order their pads or be sure the pad you have chosen is compatible with that unit.
How Many Pads Do I Need to Order at One Time?
While TENS unit therapy is generally considered safe and effective for most people, it would still be wise to wait before ordering a massive quantity of replacement pads. You will want to use the TENS device for at least a few weeks to be sure it is providing appropriate pain relief, that you are comfortable with the pulsing sensation, and are suffering minimal skin irritation from the pads.
Once you are settled into a consistent routine with your TENS unit, you should be able to calculate your pad replacement and usage habits.
Managing pad quantity is not an exact science, as several factors can affect how long the pads last, including how well you take care of them and whether or not they are cheaply constructed to start with. Using a pad too long can be problematic in that they may no longer be working effectively. This means you are no longer receiving the greatest benefit from your TENS unit, whether it is to manage back pain, muscle pain, or some other issue related to your mobility.
The general rule of thumb when it comes to pads for TENS units is that they last anywhere from 10 to 15 uses.
You will want to keep track of how often you are changing them and do this for a fair amount of time to see what your average replacement rate looks like. Then you can gauge how many to purchase as replacements, knowing that if you order in bulk quantities, you may be able to get a better price.
One note of caution on price is that if it seems too good to be true, it probably is. Do not go too cheap when it comes to replacement pads because you may end up with a poor-quality product that is completely ineffective, forcing you to toss them and start from scratch, ordering an entirely new set.
Applying and Removing TENS Unit Replacement Pads
The way you apply and remove your TENS unit replacement pads will also have an impact on how long they last and how well they work.
First and foremost, you should always review the manufacturer’s instructions that came with your TENS unit as well as any instructions with replacement pads. The steps below are meant as general guidelines, but your specific device and pads may have other tips and instructions you should follow.
Applying the TENS Unit Pads
Step 1: Make sure the area where you are applying the pads is both clean and dry. Do not apply the pads to cut or broken skin and avoid applying pads if you are sweaty.
Step 2: Open the packaging on the pads and remove them, but only when you are ready to apply them immediately, so they do not have time to collect any debris. Save all of the original packaging, which you will need once you remove them.
Step 3: Peel away the sheet from the adhesive, but do not pull electrode pad by the wires.
Step 4: Place the electrodes in the designated area and then press down around the edges with your fingertips to make sure they are securely attached to your skin. If you have any trouble getting the pads to attach, you can try adding a few drops of water, which may reactivate the adhesive gel.
Removing the TENS Unit Pads
Step 1: Using great care, gently peel back the electrodes.
Step 2: With a non-alcohol wipe or plain water, wipe off the electrode and be sure it dries completely. You will want to keep the adhesive side face up, so you do not inadvertently stick the electrode to any objects.
Step 3: Once it is fully dry, place the electrode back on the sheet it came with and then return it to its original packaging.
Cleaning and Storing TENS Unit Replacement Pads
Once your electrodes are dry and returned to the original packaging, you should store them in a cool and dry place. Extreme temperatures can affect the adhesive gel and shorten the lifespan on the TENS unit replacement pads. Some people prefer to store them in the refrigerator to ensure they stay cool and dry.
When it comes to cleaning TENS unit replacement pads, there are some mixed opinions. Some users swear by water only, whereas others prefer to wash them with soap. Before using soap or rubbing alcohol or any other substance on the electrodes, double check the manufacturer’s instructions. Most manufacturers say you should not let rubbing alcohol come into contact with the electrodes.
It is a good idea to store your TENS unit and all replacement pads in the same place, so that you can always keep track of your quantities and order more when needed. Also, avoid shared use of the pads. A single unit can be shared among family members, but each person should have his or her own replacement pads.
Using Gel with TENS Unit Replacement Pads
TENS Unit Replacement pads should adhere to the skin without additional gel, but some users think it prolongs the lifespan of the replacement pads. An added benefit of gel is that some users find it lessens the stinging feeling of the pulses, so they may find the TENS unit therapy is more comfortable when the electrode gel is used.
You should always read the manufacturer’s recommendations about gel use for your specific device, and you will only need to use a very small amount.
Final Thoughts on TENS Unit Replacement Pads
Replacement pads may be a frequent purchase for you once you settle into daily use of a TENS device; however, you should not order them in bulk until you are sure the device is right for you and your pain management needs.
A TENS unit is not right for every individual, including those with heart conditions, those with pacemakers and other implants, and those with epilepsy. Pregnant women should also use great caution with a TENS device, never placing it in the abdominal area. Always consult your physician before trying TENS therapy.
