NOCO Remove E403S Battery Terminal Cleaner Spray
Priced as of May 17, 2026
4.6(309 ratings)Buy on AmazonSaved to your guest loadout. Sign up to also save to your Cabinet (consumables) or Kit (tools you own).
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Prices may varyFrom the Safety Data Sheet
Full SDS ↗ (rev. 2015-05-20)GHS hazard codes are quoted from the manufacturer’s Safety Data Sheet. PPE tiers below translate those codes and the listed ingredient chemistry; they are not CarCareTruth recommendations.
EyesSituationalMfr. SDS §8SkinSituationalMfr. SDS §8LungsSituationalMfr. SDS §8 · 29 CFR 1910.134 · GHS H373Ventilation—No PPE in published sourcesShow details for all categories ▾Hide details ▴
From the manufacturer’s Safety Data Sheet, Section 8
“No H319 or H318 classified at mixture level. Aerosol spray at battery terminal height can generate mist drift toward face — eye protection appropriate during aerosol application.”
— NOCO
CarCareTruth publishes the cited sources verbatim and does not advise what action a user should take. Consult the full SDS before use.
From the manufacturer’s Safety Data Sheet, Section 8
“No H315 or H314 at mixture level. Direct hand contact with the dissolved corrosion slurry during the wipe/rinse step contains lead sulfate residue — skin protection appropriate when handling dissolved corrosion or cleaning the terminal area.”
— NOCO
CarCareTruth publishes the cited sources verbatim and does not advise what action a user should take. Consult the full SDS before use.
From the manufacturer’s Safety Data Sheet, Section 8
“No H335 at mixture level. Aerosol delivery in a semi-enclosed engine bay warrants ventilation awareness. H373 (STOT RE Cat 2) is confirmed at mixture level — for the seasonal home-mechanic use case, single-application acute risk is low, but the organ-toxicity basis from a 3.1% undisclosed ingredient elevates tier above not_needed.”
— NOCO
U.S. regulatory standard
29 CFR 1910.134; 1910.138; 1910.1000
“the primary objective shall be to prevent atmospheric contamination…”
OSHA standards apply to workplaces. Cited here as the U.S. reference threshold for the underlying hazard class.
UN GHS hazard statement
H373“May cause damage to organs through prolonged or repeated exposure”
UN GHS Rev. 9 (2021)
CarCareTruth publishes the cited sources verbatim and does not advise what action a user should take. Consult the full SDS before use.
No PPE specified in published sources for ventilation. Absence does not imply “not needed” — consult the full Safety Data Sheet.
PPE tiers translate the manufacturer’s SDS and U.S. regulatory standards. Not professional safety advice. How we report safety.
CarCareTruth's Analysis
Last reviewed May 18, 2026
TL;DR Sodium bicarbonate aerosol that fizzes and neutralizes acid residue on battery terminals — no wire brush needed for routine corrosion. No color-change indicator. H373 (repeated-exposure organ toxicity) and a Prop 65 warning come from a 3.1% undisclosed ingredient; the DANGER signal word is from the flammable propellant, not the cleaning chemistry.
What it is and how it performs
Spray on through the red straw applicator, let it react with the corrosion deposits, rinse with water, and wipe clean. The baking-soda formula neutralizes acid residue on terminal posts and cable clamps. Community aggregate is strong (4.6 stars, 309 reviews) for routine light-to-moderate buildup. Neutral pH (7) is easy on rubber boots and plastic housing. No color indicator — judge completion by the absence of fizzing.
Who should buy this — and who should skip it
Solid choice for regular battery maintenance — the typical white-blue corrosion from a year or two of service. Skip it if terminals have thick crusty buildup from years of neglect (wire brushing likely still needed), or if a color-change reaction indicator matters to you.
Safety and environmental impact
DANGER is from the flammable aerosol propellant. H373 (STOT RE Cat 2) and the Prop 65 warning trace to the 3.1% undisclosed ingredient — keep ignition sources clear and use in a ventilated area. No eye or skin irritation H-codes at mixture level. Propellant-only VOC; no aquatic toxicity at mixture level.
The corrosion dissolved from battery terminals contains lead sulfate — wash hands after handling dissolved slurry, and keep rinse water out of storm drains.
From the manufacturer
Marketing copy from NOCO, via Amazon. Not editorial.
- •Instantly neutralizes, dissolves, and removes battery corrosion.
- •Restores a battery to maximum current flow.
- •Reduces a batteries potential for voltage leakage.
- •Easy to use - simply spray-on and rinse-off.
- •Perfect for battery terminals, cables, hold-downs, and more.
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Manufacturer videos
Manufacturer images
Manufacturer specifications
- Brand
- NOCO
- Item Form
- Spray
- Item Volume
- 414.03 Milliliters
- Unit Count
- 1.0 Count
- Special Feature
- Dissolves Battery Terminal Corrosion, Neutralizes Battery Terminal Corrosion, Removes Battery Terminal Corrosion See more
- Special Features
- Dissolves Battery Terminal Corrosion, Neutralizes Battery Terminal Corrosion, Removes Battery Terminal Corrosion
- Contains Liquid Contents?
- No
- Brand Name
- NOCO
- Global Trade Identification Number
- 00046221004038
- Manufacturer
- NOCO
- UPC
- 046221004038 700115566629
- Model Number
- E403S
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