EverStart Maxx Marine 40 Amp Marine Battery Charger and Maintainer
EverStart Maxx Marine 40 Amp Marine Battery Charger and Maintainer
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EverStart

EverStart Maxx Marine 40 Amp Marine Battery Charger and Maintainer

4.2 stars out of 54 reviews
(4.2)|
54 ratings

Key item features

  • Versatile Compatibility: Compatible with 12V Lithium LifeP04 and Lead Acid AGM, GEL, and WET automotive and marine batteries.
  • Automatic Detection: Automatically detects whether to engage charging or maintenance mode as needed.
  • Engine Start Mode: Features a 40 Amp Engine Start mode to help initiate the charging process.
  • Rapid Charging: Offers a 15 amp rapid charge for quick battery replenishment.
  • Battery Maintenance: Includes a 3 amp maintainer to keep batteries at optimal charge levels.
  • Temperature Compensation: Automatic low voltage and temperature compensation for efficient charging.
  • Durable Clamps: Corrosion-resistant nickel-coated clamps ensure long-lasting performance.
  • Alternator Check: Includes an alternator check feature for diagnosing car trouble.
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was $59.97
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  • Free 90-day returns
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North Dartmouth, 02747
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About this item

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Customer ratings & reviews

4.2 out of 5 stars
stars54 ratings16 reviews
How item rating is calculated
  1. 5 stars69% (37)
  2. 4 stars11% (6)
  3. 3 stars6% (3)
  4. 2 stars2% (1)
  5. 1 star13% (7)
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Showing 1-3 of 16 reviews

Feb 3, 2026
christopher
Top Reviewer
5 out of 5 stars review

Verified Purchase

put harbor freight to ssshame. i bought a harbor frieght charger and not the cheapest .that mother literally looked and acted and sounded like bottle rockets going off when i attached the leads it was insane. i was left with wires hanging and clips covered in melted plastic on my motorcycle battery . dont ask about returns to harbor freight. walmart stands behind everything. and on top of that . there chargers dont blow up and have local deputys converge onto your home asking wheres the fireworks ...this is a true story and a real review ... true..(not the deputys, i threw that in. but everything else is true. ) honest csb

Helpful?7A5EKL6FRFRY11962311134
Jun 29, 2025
lee
5 out of 5 stars review

Verified Purchase

i dont like that it thinks some batteries are bad sometimes you have to trick it to get it to charge

Incentivized Review
Helpful?7A5EKL6FRFRY11962311134
May 10, 2025
Robert
5 out of 5 stars review

Verified Purchase

Marine battery charger

quick shipping , charged my marine battery when my older charger won't charge it full.

Incentivized Review
Helpful?7A5EKL6FRFRY11962311134