Stanley BM1S 1 Amp Automatic Battery Maintainer, New
Stanley BM1S 1 Amp Automatic Battery Maintainer, New
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STANLEY

Stanley BM1S 1 Amp Automatic Battery Maintainer, New

Key item features

  • High-Frequency Charger: High-frequency battery charger/maintainer compatible with all AGM, GEL, and WET automotive/marine batteries
  • Durable Housing: Impact-resistant polymer housing sealed from dust and is oil-resistant
  • Compact Design: Compact form factor easy to mount and store
  • Dual Charging Options: 2 ways to charge with included terminal O-rings and battery clamps
  • Automatic Operation: Fully automatic with integrated reverse polarity alarm and circuit protection to prevent overcharging or short circuit
  • Battery Maintenance: Designed to maintain 12 Volt batteries, keeping them topped off once fully charged
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Current price is $38.77
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  • Free shipping
  • Free 30-day returns
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Columbus, 43215
Arrives by Fri, May 8
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Only 1 left
Sold and shipped by The Factory Depot
4.26360103626943 stars out of 5, based on 1544 seller reviews(4.3)
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$47.29
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Shipping, arrives by Thu, May 7 to Columbus, 43215
Sold and shipped by The Twister Group
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About this item

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Customer ratings & reviews

4 out of 5 stars
stars162 ratings135 reviews
How item rating is calculated
  1. 5 stars62% (100)
  2. 4 stars14% (22)
  3. 3 stars2% (4)
  4. 2 stars2% (4)
  5. 1 star20% (32)

Reviews summary

Pros

  • : Made for easy battery connection.
  • : Simple connection and operation process.
  • : Offers a low-cost option for customers.
  • : Provides 12 feet of reach for convenient charging.

Neutral

  • : Can be rapid, but may be slow for some users.

Cons

  • : Flickering or non-functional led lights affect charging status visibility.
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Showing 1-3 of 135 reviews

Apr 17, 2026
Robert
Walmart Associate
Sold and shipped byThe Factory Depot
5 out of 5 stars review

Verified Purchase

Great way to make sure your bike starts

I use it on my Suzuki motorcycle. I have the wire attachment hooked to the battery at all times so I can plug it in when I'm not writing it to keep the battery fully charged and it works wonderfully well worth the money.

Helpful?76XTF8IO6L0H453321945
Dec 11, 2019
AC
5 out of 5 stars review

Easy to Use!

This Stanley battery charger/maintainer is a great item to have. It is an easy to use charger that is great if you have any cars/ lawn mowers/ATV's, etc. that are not used all the time to keep the battery charged or a quick and easy way to charge it back up. The charger comes with clamps and battery rings so you can charge it either way. The charger has light indicators on it to let you know when it is in the charging process and when it is fully charged. The directions are very clear and descriptive and make it very easy to understand. The cords on it are pretty long which makes it easier to charge something if you charge it while leaving the battery in the vehicle instead of taking it out. This battery charger works well and is easy to use.

Incentivized Review
Helpful?76XTF8IO6L0H453321945
Dec 4, 2019
Reviewizard
5 out of 5 stars review

Simple to use battery maintainer

I tested the Stanley battery maintainer as a Spark Reviewer. The charger is simple to use and very compact. Just hook it up and it figures out what type of battery it is and what it needs to do. The cords coming out and going in to the unit have plenty of length to reach the battery and an outlet. Anyone buying this should be aware that it is not designed to jump start a vehicle. It slow charges and maintains a battery at the correct charge level without the risk of overcharging it. Perfect for winter storage of your special vehicle, motorcycle, or riding lawn mower. I would recommend this trickle charger.

Incentivized Review
Helpful?76XTF8IO6L0H453321945