Best Electrical Cleaners of 2026

"I used this cleaner on the sliding switches of my solar yard lights and it brought them back to life instantly. It dries quickly, leaves no residue, and even after exposure to rain and heat, my lights are still working perfectly. Excellent for old mechanical switches."

"I had an issue with the LED turn signal in my car's side mirror due to corroded connectors. After using this spray, the cleaner dried in under a minute and my indicator started working again. Great for electrical connections and dries fast—just like brake cleaner."

"As someone who works in an electronics lab, I found this WD-40 contact cleaner to be affordable yet professional-grade. The Smart Straw makes precision cleaning a breeze, and it leaves no residue behind. Performs as well as more expensive brands."

"I've relied on CRC products for years, and this cleaner is no exception. It leaves no residue and works on everything from home gadgets to car electronics. I plan to keep using CRC for all my cleaning needs."

"After using this spray to clean stubborn buildup in my PC's PCIe slot, I was able to eliminate annoying system crashes and restore performance. It dries quickly, but I recommend using a fan and good ventilation during cleaning. Definitely a 5/5 purchase for me."

"As a DIY enthusiast, I found this product to be a lifesaver for fixing sticky motorcycle switches and crusty contacts on older electronics. It dries almost instantly, leaves no residue, and has saved me from replacing expensive parts. Worth every penny in my toolkit."

"I found this product fast and effective for dissolving corrosion on my truck battery. I applied it to both terminals, let it sit, rinsed, and brushed them clean. Weeks later, my terminals are still spotless. Definitely recommend for battery maintenance."

"This cleaner removed corroded battery ends in seconds. It's easy to use and comes in a good size. Just remember to use protective glasses and cover your mouth and nose—safety first! Really satisfied with how well it worked."

"I've used this several times now, and it does a great job breaking down corrosion quickly. It’s straightforward to apply and makes terminal cleaning much easier than other methods I’ve tried."

"The precision needle applicator lets me apply the cleaner exactly where I want with zero mess or leakage. Although the price is a bit high, I think it’s the best product available for this purpose."

"I really appreciate being able to use just one drop at a time and keep things neat and tidy. After applying, I follow up with a swab or brush for a polished finish."

"I bought this to maintain my Gameboy collection, hoping to prevent corrosion and keep my games in museum-quality condition. It only takes a tiny amount to get the job done."

"I used this DeoxIT D5/F5 combo on my JL Audio MM50 boat radio when the selection knob became stuck and unresponsive. D5 cleaned it up perfectly and I finished with a bit of F5 for extra lubrication. Now it works better than new. The cans are a little large for my needs, but the product itself is super effective."

"I've tried other sprays for my vintage stereo gear, but nothing compares to DeoxIT. D5 is great for switches, F5 for faders and pots. After using both, even my most stubborn receivers work flawlessly again. Sometimes you need to let it sit for a day or two, but the results are worth it. Don’t give up too soon!"

"I've been using Caig products, including DeoxIT, for over ten years. They’re not cheap, but you only need a small amount for each job and they always deliver. If you’re into audio repair or vintage equipment, these sprays are a must-have in your toolkit."

"I can't believe how effective this Battery Terminal Protector is. After spraying it on, my battery terminals stay corrosion-free much longer than before, and the color-changing feature lets me know when it's time for a touch-up. Since I started using it, my truck starts reliably and I haven't had any battery problems. It's given me real peace of mind."

"I have several vehicles, including a golf cart, and I apply this terminal protector on all of them. Living in the humid South, corrosion used to be a constant issue, but now my terminals stay clean throughout the year."

"For the price, this product can't be beat. After cleaning my old car's battery terminals, I applied this spray and, even after several weeks, there's still no sign of corrosion. Much better deal than the local store."

"I’m truly impressed with how well this product cleans up electronics and keeps them corrosion-free. It’s my go-to for everything from fuses to phone charging ports, instantly de-oxidizing rust and saving me from headaches with bad connections. Absolutely love it and wish I’d found it sooner!"

"After using this on my guitar cables and amp sockets, the annoying crackle completely disappeared. Even though the can is small and a bit pricey, just a tiny amount goes a long way, and it’s made a huge difference to my setup. I’ll definitely be buying this again."

"I recently picked up two vintage tape decks with noisy switches and pots. Following some YouTube guides, I sprayed this product and was honestly amazed—both machines now work flawlessly. For anyone restoring old audio gear, this is a must-have."

"I've used this cleaner on lots of vintage audio gear packed with switches and noisy contacts, and I'm impressed—no more crackling, and absolutely no residue left behind. This product exceeded my expectations!"

"When it comes to cleaning out small electric motors or dirty PCBs, this is my go-to. It evaporates quickly, leaves zero residue, and works perfectly for my needs. I always make sure to have it on hand for my projects."

"This cleaner does a solid job on contact tips and older circuit boards. While it's not the absolute best for removing heavy dirt and grease from connectors, it’s definitely a good product for the price."

"I've found this contact cleaner to be extremely effective at removing stubborn black residue from model train tracks. It evaporates quickly and leaves no residue, making it ideal for both home layouts and large club setups. Since using it, my locomotives have better pulling power and less slippage. It's also safe for plastics and far less hazardous than kerosene."

"I used this on my used van's window controls, which weren't working. After spraying it into the housing, the connection was restored immediately. I really love this stuff for its reliable performance!"

"This cleaner leaves absolutely no residue and works great, but I did notice it's a bit wet. I might try dielectric grease instead, but overall, it's still a solid product."

"I always keep a few of these around because they really do a fantastic job cleaning deeply and drying without residue."

"I used this as a solvent and was impressed that no scrubbing was required to clean electrical contacts."

"This product made cleaning my cable connections incredibly easy—it worked perfectly for the job."