12V 4AMP CHARGER MAINTAINER for 12V 35AH EVH12390 SLA Battery
12V 4AMP CHARGER MAINTAINER for 12V 35AH EVH12390 SLA Battery - Image 2
12V 4AMP CHARGER MAINTAINER for 12V 35AH EVH12390 SLA Battery - Image 3
12V 4AMP CHARGER MAINTAINER for 12V 35AH EVH12390 SLA Battery - Image 4
12V 4AMP CHARGER MAINTAINER for 12V 35AH EVH12390 SLA Battery - Image 5
Rated 4.91 out of 5 based on 11 customer ratings
(11 customer reviews)

$34.99

12V 4AMP CHARGER MAINTAINER for 12V 35AH EVH12390 SLA Battery

Availability: In stock

SKU: ML-12V4A221 Category:
Compact, Light and Powerful the Mighty Max 12 Volt 4 Amp charger provides an enhanced charging method that will not damage your batteries when left connected. Mighty Max charger provides a short circuit protection, enabling the product to charge fully.
Features;
Mighty Max 12 Volt 4 Amp charger with Alligator clips 
3 stage professional charging method ensuring full charge, avoiding over-charging
Float charge to ensure the batteries life
Temperature / Short Circuit protection
Dual color LED – showing operation of charging progress
3 Stage Advanced Charging;
Phase 1: Constant charge
Phase 2: Constant voltage
Phase 3: Float Charging
Specifications;
12 Volt 4 Amp Charger and Maintainer 
AC Input: 110-120VAC, 50/60Hz 0.8A
Output: DC + 12V/4A
Dimensions: 4.50 x 2.50 x 1.50
LED Indicator;
Green On: Power on, No Battery
Red On: Charging
Green On: Charging Finished, Trickle On

11 reviews for 12V 4AMP CHARGER MAINTAINER for 12V 35AH EVH12390 SLA Battery

  1. Rated 4 out of 5

    Todd Waller –

    Gets extremely hot while charging. So hot that i decided to charge it outside away from the house.

  2. Rated 5 out of 5

    MK&A –

    The best feature is it’s easy to take around and does the job as well if not better than larger battery chargers.

  3. Rated 5 out of 5

    Shadylady13 –

    Works great very fast

  4. Rated 5 out of 5

    Mike –

    Using this to charge my mighty max 35ah battery. I use for kayak trolling motor. Easy to use works perfect.

  5. Rated 5 out of 5

    TK –

    Small and compact. Great charger

  6. Rated 5 out of 5

    TK –

    Small and compact. Great charger

  7. Rated 5 out of 5

    David –

    small easy to use

  8. Rated 5 out of 5

    Lorenza C. –

    So easy to use and convenient.

  9. Rated 5 out of 5

    Lorenza C. –

    So easy to use and convenient.

  10. Rated 5 out of 5

    Jeff Himmelrich –

    Amazing service!!! Truly outstanding.

  11. Rated 5 out of 5

    Jeff Himmelrich –

    Amazing service!!! Truly outstanding.

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Excellent
Mighty Max Battery
Based on 4145 reviews
See all reviews
Shaylynn Mackie
These batteries were purchased for a razor motorcycle. They work wonderful and were easy to install! Our little man is happy to be back riding
Michael Pannone
Perfect fit and ready to go.
allan levitt
Arrived in perfect condition
Lalo
2011 Yamaha Raptor 700R battery, started right up. Has a 1 year warranty. Great deal.
Zach Mankowski
Love mighty max batteries
Roger Smith
Arrived well packaged. No information as to original warranty coverage and term, but lots of solicitations to extend the warranty coverage for a whole amazing 90 days - Wow, such product confidence! At least it’s not made in China, but is Thailand any better for quality manufacturing? We’ll see.
AK B
Ktm duke 390
Kerry-Ann McNeil-Harris
Arrived next day and sas very easy to install. They also offer free 3 warrany extension.
Anne Marie Forbes
I ordered this MightyMax battery through Amazon. The Ad states it works in my GE Simon XT house alarm.
Susan Blankenship
I received my battery from Amazon on March 9, 2026. The box was a little squashed but the battery was packaged well and it it fine. I installed it and finally my gate opener is working properly. I purchased 2 batteries before this and had to return them because they were the wrong battery. This one is working great.

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