bing tracking image
  1. Battery Charger
  2. OptiMate
  3. Boat
  4. Car/Truck/SUV
  5. Motorcycle
  6. 12V
OptiMate 2 DUO Smart Battery Charger - AC to DC - 12V - 2 Amp

OptiMate 2 DUO Smart Battery Charger - AC to DC - 12V - 2 Amp

Item # MA27JR
Our Price: $82.95
Battery Charger
Shipping Weight: 1.73 lbs
Add to cart
In Stock
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

In Use/Installed

Need help with installation?
Locate installers near me
Compact smart charger draws power from a wall outlet to automatically charge and maintain batteries on cars, motorcycles, trucks, SUVs, and boats. 5-step system prevents harmful overcharging. Works with 12V lead-acid and lithium batteries. 1-800-940-8924 to order OptiMate battery charger part number MA27JR or order online at etrailer.com. Free expert support on all OptiMate products. Great prices and Fastest Shipping for OptiMate 2 DUO Smart Battery Charger - AC to DC - 12V - 2 Amp. Battery Charger reviews from real customers.
  • All Info
  • Reviews (1)
  • Q & A (0)
  • Videos (2)
  • Photos

OptiMate Battery Charger - MA27JR

  • Boat
  • Car/Truck/SUV
  • Motorcycle
  • 12V
  • Battery Charger
  • OptiMate
  • Wall Outlet to Vehicle Battery
  • Charges/Maintains
  • AC to DC
  • Smart Charge
  • Trickle Charge

Compact smart charger draws power from a wall outlet to automatically charge and maintain batteries on cars, motorcycles, trucks, SUVs, and boats. 5-step system prevents harmful overcharging. Works with 12V lead-acid and lithium batteries.


Features:

  • AC-to-DC smart charger quickly charges and maintains a battery
    • Perfect for charging car, motorcycle, lawnmower, ATV, tractor, truck, SUV, or boat
  • Multiple battery profiles let you charge a variety of battery types at different voltages
  • 5-Step charging algorithm automatically charges, tests, and maintains without overcharging
    • Analyzes battery condition to provide a customized charge
    • Maintains battery at 100% to extend battery life and improve performance
  • Battery clamps provide a quick, easy way to connect to your battery
  • Eyelets let you make a secure connection to your battery terminals
    • 15-amp fuse protects electronics from potential short circuits
    • Zip tie slits allow easy fastening to vehicle
    • SAE connector with weatherproof seal and cap keeps out dirt and water
  • Simple operation with LED lights that indicate charging status
  • Durable, weatherproof case includes wall mounts, 6' AC supply lead, and 6' charge lead with SAE connector


Specs:

  • Application:
    • 12V lead-acid batteries from 6 to 96 amp-hours
    • 12V LiFePO4 batteries from 2 to 24 amp-hours
  • Battery types supported: flooded, AGM, gel, and LiFePO4 (lithium-iron phosphate)
  • Maximum charging amperage: 2 amps
  • Cable lengths:
    • Battery clamps: 20"
    • Eyelets: 20"
    • AC power: 6'
    • Charging cable: 6'
  • Input voltage: 100 - 240 VAC (50 - 60 Hz)
  • Low voltage detection rating: 4 volt
  • IP rating: IP54
  • Lowest operating temperature: -40 F (-40 C)
  • 3-Year limited warranty


TM551 OptiMate 2 DUO 5-Step 12V / 12.8V 2A Sealed Battery Charger and Maintainer

Replaces TM-551

Installation Details MA27JR Installation instructions



Video of OptiMate 2 DUO Smart Battery Charger - AC to DC - 12V - 2 Amp

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Optimate 2 Duo AC to DC Smart Battery Charger Review

What's up everybody It's AJ with etrailer.com. Today, we'll be checking out the OptiMate 2 DUO, it's gonna be a battery charger and maintainer. I got it hooked up to my car, 'cause the battery's kinda low. Let's check it out. So I kinda messed up and I ran the radio with the car and auxiliary for a little bit longer than I meant to, so it really dropped the battery, so I was worried about the battery not having a full charge or getting a full charge as I was driving around. Luckily, we're doing the video on the DUO 2, so I hooked that up and I saw that it was yellow, so it was not a full charge on the battery, and we left it on there for about an hour or so, and it got my battery back up to the green light, which means it's fully charged, and that's gonna be great, 'cause I don't have to worry about that running out on me anymore.

So we're gonna go over the LEDs right here, you got the first one here, it means it's powered on, it is getting power, this one's gonna be your error light, so if there's something wrong, this will flash, and I suggest looking at the manual to let you know what it's gonna be. This one's gonna be charging, so this one will light up, it was yellow for us to show that it wasn't fully charged, then it turned green here, which means it's fully charged and it's maintaining it right now. Using the clips, they do have a nice snap to them, so I don't have to worry about them falling off pretty easily, especially when I got a side post mounted battery, there's not a lot for it to clip onto, so it's important that it's gonna stay in place. I'm just gonna go positive, then negative, and then it's hooked up. You can see right now it's reading the battery, it went from yellow to green, letting us know it's fully charged.

One of the nice things about this is you can actually get rid of the clips if you don't wanna use it, if you want a more permanent solution, you can mount this inside a vehicle, that's more for something that you're gonna leave out for the winter like a lawnmower or a golf cart that you got to park away. You can hook up the eyelets and then permanently mount this to the battery, and you see the housing on the outside even has holes to run zip ties or screws if you wanna mount it onto that lawnmower or golf cart, that way, you just pull it up and plug it into the wall and it'll keep it running or at least keep the battery charged and maintained over the winter. They're gonna have six feet of cord, so that's the one that goes to the outlet here, and then the one where you hook up your accessory, whether it is the eyelets or the clamps, that's what you're gonna get with this. So it's not too short, if you want to bundle some of it up, maybe you don't need it at all, you can park a little closer to the wall than we do, you have a workbench or something, that'll work nicely there. Now, another thing to consider is with the eyelets, it's got a built-in 15 amp fuse right here, so that's gonna protect any feedback or anything, so that it's not gonna upset or damage any electronics on either side of that.

Another thing, with the five-step charging process it goes through, when you hook it up, it's gonna take a look at the battery, make sure it's not dangerous to be hooked up to it, then it'll slowly see how low it is and give you that readout, and then it'll assess how much charge it needs to give it to get it back up to 100%. On the SAE connector, it also has a weatherproof cap you can put on there, so if you don't have any of the accessories hooked up to it, you can put it on there and it'll protect it from any dirt or water. The case itself is waterproof too, so you don't have to worry about when you do go to permanently mount it, the rain's not gonna hurt it, and the dust and dirt's not gonna get to it either. It's got an IP54 rating, so that's gonna be that dust protection, so it's not just limited to cars, you can use it on trucks, boats, motorcycles, whatever you need to charge slowly and just keep that battery maintained, it's gonna work on you. Either way, I think it's gonna be a handy thing to have whether you're charging something all winter or you just need to top off your battery.

Well, I think that does it. Thanks for hanging out, and hope this helped..


Customer Reviews

OptiMate 2 DUO Smart Battery Charger - AC to DC - 12V - 2 Amp - MA27JR

Average Customer Rating:  4.0 out of 5 stars   (1 Customer Reviews)

Compact smart charger draws power from a wall outlet to automatically charge and maintain batteries on cars, motorcycles, trucks, SUVs, and boats. 5-step system prevents harmful overcharging. Works with 12V lead-acid and lithium batteries.

by:


1
1

See what our Experts say about this OptiMate Battery Charger

  • Is There a Way to Run an Electric Diesel Pump From the 7-Way on a 2018 Chevrolet Silverado 2500 HD
    You can wire your pump to the Pollak Black Plastic, 7-Pole, RV-Style Trailer Connector # PK12706. You will need to connect to the positive terminal and the ground. You would then plug the pump directly into your 7-way. You will want to check what amp fuse your 12v lead for your 7-way has. It is typically between 20-40 amps. As long as your pump does not pull more amps than the 12v line is fused for, you will be good to go. If you pump does pull more amps, I would just get a battery for...
    view full answer...
  • Is OptiMate 2 Duo Battery Charger Compatible with Optima Yellow Top Battery
    The OptiMate # MA27JR charger is compatible with lead acid and Lithium Ion batteries. It is compatible with AGM batteries like an Optima Yellow Top, and would do a great job charging or maintaining your yellow top battery. If you click the provided link, you can see a product description video for the OptiMate battery charger.
    view full answer...
  • Does 7-Way For 2022 Honda Pilot Charge Trailer Battery
    Your trailer battery will receive a maintenance charge, but will not charge up when towing with your 2022 Honda Pilot and plugged into the T-One Vehicle Wiring Harness for Factory Tow Package - 7-Way Trailer Connector # 118286. So if you're okay with just a maintenance charge and not fully charging the battery when driving, then all you need is the aforementioned 7-way. But since you don't want to charge the battery from your Honda, the only way to do so is with a wall charger such as...
    view full answer...
  • Optimate 2 Battery Charger/Maintainer For Both Lead Acid and Lithium Batteries
    The OptiMate 2 Smart Battery Charger # MA22WR is only for lead acid 12 volt batteries. We do have the OptiMate 2 DUO Smart Battery Charger # MA27JR which allows you to charge both lead acid and lithium batteries with the same device. The smart charger will detect the battery type and condition to select the correct charging and maintenance profiles.
    view full answer...
  • Replacement Battery For Interstate SMR-27IBS Group 27 Marine Battery
    Your Interstate battery is a group 27 size battery. I recommend going with either an AGM # 34276285 or Lithium # GP99QR battery. Your Interstate is a typical lead acid battery which requires you to check the battery acid and water mixture and refill the water as needed. Both the AGM and Lithium are maintenance free batteries. The AGM has a 2-year warranty while the Lithium comes with a 10-year warranty. Typically a lithium battery will outlast the trailer and can be moved over when changing...
    view full answer...

Do you have a question about this Battery Charger?


Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Andrew K
Installed by:
Andrew K
Employee Michael B
Installed by:
Michael B
Employee Jacob T
Video Edited:
Jacob T
Employee Wilson B
Updated by:
Wilson B
Employee Daron K
Edited by:
Daron K
Employee Alex H
Written by:
Alex H
Employee Thomas T
Video by:
Thomas T

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.