






⚡ Clean terminals, charged life — don’t let corrosion slow you down!
The NOCO E404 Battery Terminal Cleaner Spray is a 12.25 oz fast-acting aerosol that instantly neutralizes and removes battery corrosion. Featuring a unique acid detector that turns pink upon contact, it ensures you catch corrosion early. Designed for universal use on all vehicle battery terminals and cables, it improves electrical connections and boosts cranking power, making it an essential tool for maintaining reliable vehicle performance.























| Best Sellers Rank | #2,313 in Automotive ( See Top 100 in Automotive ) #3 in Electrical Cleaners |
| Customer Reviews | 4.6 out of 5 stars 1,856 Reviews |
M**H
Excellent product & value (when on sale)
Easy to apply and work around. Cleaned terminals fast. To remove just use small sprayer and wet rag to clean terminal areas. Ensure you dry areas outside battery terminals. Recommend storing can per manufacturer's instructions. Always wear plastic gloves and eye protection!!! Recommended!
Y**A
Workign great on corrosive stuff. Amazing job!!!
Dissolved the corroded battery 🔋 ends in seconds. Gotta be careful while using it. Wear a mask or cover your mouth and nose. Also wear protective glasses. Definitely worth buying it. Not that thick. Just sticks in and eat up all the corrosive stuff. Comes in a good size. Easy to use also.
J**M
Once every few years... just do it right...
Works as it should You must rinse off the spray...so if you can get your hands on a steam sprayer...its a lot less messy
A**N
Great cleaner, mostly good for acid checker
real good acid checker, but could always use the old baking soda/water method for cleaning though
L**M
Works As Advertised
Simple to use. Works as advertised.
R**D
Good experience
Fast delivery and product works as described
Y**Y
Does the job well
I've used this several times and it does a great job of dissolving corrosion in a short time.
K**N
Cleans Corrosion Better Than Wire Brush Alone
I've tried this on my truck battery, which tends to get corroded quickly. I sprayed the cleaner on both terminals and let it sit for a while to work. Rinsed off with water, then scrubbed the terminals with a small brass wire brush. I'm left with clean terminals, and I hope, no acid to continue corroding the terminals. After several weeks, the terminals are still clean.
Trustpilot
2 months ago
2 weeks ago