CarCareTruth Score
Decent.
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Prices may varyAbout this product's hazards. This product's Safety Data Sheet uses signal word danger. Read the manufacturer's SDS and follow all safety instructions before use. CarCareTruth ratings translate the manufacturer's safety sheet. They do not replace the SDS or substitute for a hazard assessment specific to your task.
Health score is for adult use as intended, per the manufacturer's SDS. It does not model child ingestion, accidental spill cleanup, or off-label use. See the safety panel below for full hazard classification, and /disclaimer for the full editorial scope.
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.
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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.
This product ranks #3 of 7 in Battery Terminal Cleaner.
Last reviewed May 26, 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.
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, well-reviewed by owners, 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.
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.
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.
The Safety Data Sheet for NOCO Remove E403S Battery Terminal Cleaner Spray carries a DANGER signal word, with classified hazards including H222 (extremely flammable aerosol); H229 (pressurized container: may burst if heated); H280 (contains gas under pressure; may explode if heated). The Amazon listing also carries a California Prop 65 warning. See the PPE breakdown above for use-case-specific guidance translated from the SDS hazard codes.
CarCareTruth scores NOCO Remove E403S Battery Terminal Cleaner Spray at 6.8 out of 10 on the composite CCT score, with a health sub-score of 8.0/10. The CCT score blends real-world effectiveness, ingredient health impact pulled from the manufacturer's safety sheet, and environmental footprint against a published category rubric. See the methodology link on this page for the full scoring breakdown.
Per the Safety Data Sheet ingredient disclosure: Butane (6.8%), Sodium Bicarbonate (5.6%), Propane (3.1%). Remaining ~84.5% not disclosed; 3.1% classified as unknown toxicity in SDS Section 3.
Marketing copy from NOCO, via Amazon. Not editorial.
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