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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Mighty Max Battery
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Emjhaye Juan
ML22-12 Gel type and ML22-12 Non Gel type Batteries came in good condition, purchased from Amazon 6/23/26 and arrived the next day packaged really good.
Hal Model
Very well packaged and.arrived as promised
Ryan Scott
Works great!!
David V Garcia
Love the Boost!!! I got newer batteries for my grandchildren and painted this black for my boys
Dennis Moy
It was delivered fast. Good product.
Frank Scarano
Was an excellent fit for my fios wall box. Inexpensive too! Was dealing with a dead battery for years with beeping every few minutes. This fixed it right up and now will keep internet when the power goes out.
Brenda Killips
Shipped as it should have been. Received in good condition.
Thyckcutie 74
This saved my life... Well not my life but... well the battery on my new predator 3500 generator was dead!! I got it on a super duper sale but I didn't open the box for 6 months, when I did I discovered a bad battery 😟. I called them and they wanted double the price I paid for Amazon to deliver it the SAME DAY!! They didn't even carry the battery in their store 🤬. I put it in and just like that, I can run my mobile Italian ice business again! 😆 Thank you mighty max and Amazon for getting me together!!
Debora Wesley
Great battery at a great price. Work really well.
Louis Wing
This might look like a mess of wires, but it's really the backbone of my home's network and more. Everything important to our home security and connectivity relies on steady power that I have on a battery backup.

I just purchased a replacement battery for my UPS and it's a Mighty Max Battery that is working behind the scenes here. This was almost half of the cost of the OEM battery, and it was a perfect fit for the unit.

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