Everstart Maxx 4 Amp Waterproof 12v Automotive and Marine Battery Charger (BC4WE)
Everstart Maxx 4 Amp Waterproof 12v Automotive and Marine Battery Charger (BC4WE)
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EverStart

Everstart Maxx 4 Amp Waterproof 12v Automotive and Marine Battery Charger (BC4WE)

4.4 stars out of 332 reviews
(4.4)|
332 ratings

Key item features

  • Automatic Charging: Provides 4 Amp automatic 12V charging suitable for both automotive and marine applications.
  • Versatile Compatibility: Works with 12V AGM, GEL, and WET lead-acid batteries, offering broad utility.
  • Robust Protection: Features overvoltage protection, built-in circuit protection, and reverse polarity safeguards.
  • Waterproof Design: The unit's housing is rated to IP67 waterproof standards, protecting against moisture, corrosion, dust, and oil, though it is not submersible.
  • Smart Maintenance: A smart charge microprocessor automatically selects the charge rate, adjusting from rapid charge to a maintainer to preserve battery life.
  • Included Accessories: Comes with essential battery clamps and battery terminal rings for immediate use.
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was $45.77
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About this item

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Customer ratings & reviews

4.4 out of 5 stars
stars332 ratings233 reviews
How item rating is calculated
  1. 5 stars76% (251)
  2. 4 stars9% (31)
  3. 3 stars4% (13)
  4. 2 stars2% (8)
  5. 1 star9% (29)

Reviews summary

Pros
  • : Has a strong attachment to metal surfaces.
  • : Has a small size that fits easily in vehicles.
  • : Offers options at a lower cost than similar products.
  • : Comes with easy-to-follow directions.
Neutral
  • : Can be too short for some, but extends far for others.
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Showing 1-3 of 233 reviews

Nov 28, 2025
Chuck
5 out of 5 stars review

Verified Purchase

Perfect charger/maintainer

Very easy to use. Connect it directly to the battery withe the connector that comes with the charger. Keeps the battery charged with the built in trickle charger. My utv slowly drains the battery as i found out. The manual recommended a 4 amp charger with a 1 amp maintainer. This one is perfect......

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Jan 28, 2026
JAMES
5 out of 5 stars review

Verified Purchase

2 Hrs. to charge mine!

First of all, I read the reviews! Most say it will take hours to charge! Not for me only 2 Hrs.! My Jeep Compass started on first turn! The cord was long which I liked! Did not use the magnet that's attached to the unit and did not use the little hook to hang it! I was surprised how easy this was! I really not mechanically inclined! I watched a few You Tube videos on how to set it up It was simple! Make sure you have a long extension cord if your vehicle is in the driveway!

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May 17, 2023
Ekidokai
5 out of 5 stars review

Great for keeping batteries ready to go

This is great for batteries That need to sit for a while like motorcycle and boat ones. The magnet can keep th charger off the table if need be and the charger has a set of quick disconnect terminals to attach right to the batteries and then there are the battery clamp ones also. This really does the trick.

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