MinnKota MK-105P Portable Battery Charger | Review

Owning the greatest battery means nothing in the world if you can’t use it when you most need it. However, charging your battery with those giant and complicated charger in remote places can be extremely difficult if not near impossible. This is why we are trying to bring in a solution by reviewing the MinnKota MK-105P Portable Battery Charger today.

The MinnKota MK-105P Portable Battery Charger has been around for quite some time and many anglers swear by it. However, the responses are usually too good to be true. Let’s find out for ourselves if this charger has what it takes to come to your battery’s rescue when you need it.

— MinnKota MK-105P Portable Battery Charger —

 minnkota MK-105p image

— At a Glance —

Right from looking at it for the first time, you will appreciate how small, tiny and compact the MinnKota MK-105P Portable Battery Charger is. It weighs just a little over 4 pounds and measures 8.2 x 8 x 6.9 inches in dimensions. Well, people don’t call it portable for anything, or?

The charger comes to you in all black and has a molded in the handle to it which makes carrying this already small portable charger even more convenient. Alright now, enough of appearance. Let’s look into its main features now.

— Features —

— Power

The MinnKota MK-105P Portable Battery Charger, is powerful as it is, is actually smarter above all.

This puny, portable charger has been designed and made to ensure that the battery is always its first and only priority. It features an automatic 2-stage or multi-stage charging system which functions in a way so as to provide the battery with different and accurate amounts of power at various stages. What this eventually does is that it makes sure it gives no more or no less than what the battery needs. And thus the battery is never under or over charged. This, as a result, gives the battery enough juice to last longer as well as extend its longevity in the long run!

Keep in mind however that this thing can get very hot as it is in the process of feeding the battery.

— Compliance with Battery

With the MinnKota MK-105P Portable Battery Charger, you can charge any battery that is 12-volt and is Flooded or Wet-cell, or Maintenance free or Starved Electrolyte AGM. It clearly covers a broad spectrum and the most common of battery chargers and you should have no trouble with yours.

Having said that, keep in mind to never couple this charger with batteries that do not meet the above criteria. There is a solid chance that you will end up compromising the battery so try to play it safe. Stick to the instructions.

— LED Display

One thing that’s really important when charging a battery is to check on the status of progress of the battery charger and the battery itself. Overcharging is does just as much harm as undercharging, remember.

And to address this, the MinnKota MK-105P Portable Battery Charger comes with LED indicator lights which help you understand the status of the charging process. You get indications for power ON, full charge and check connection and charge completely.

One thing we must bring up, however, is no matter how helpful the LED lights are, many users of the MinnKota MK-105P Portable Battery Charger complain of them not working properly or not working at all. Moreover, this is a bit concerning since the complaints were rather high in number.

— Noteworthy Credentials

First, the MinnKota MK-105P Portable Battery Charger anti-short circuit so it is pretty safe while using it. The charger is furthermore immune to reverse polarity and is in fact also protected from arc and ignition.

Second, it is FCC compliant so it should bother to hamper with any of your electromagnetic devices or accessories like the boat’s compass.

And finally, this portable charger is also UL listed to marine standards 1236!

— Warranty

Just when you think that something as affordable and tiny would end here, the MinnKota MK-105P Portable Battery Charger comes with a jaw-dropping warranty deal.

In other words, you get a whopping 3-years warranty on this thing!



  • The MinnKota MK-105P Portable Battery Charger is very lightweight and portable
  • Features automatic multi-stage charging
  • Is shock-proof, anti- reverse polarity, and protected from arc and ignition
  • Includes LED indicator lights
  • Has a molded in handle for easy carrying
  • Comes with a 3-year warranty


  • The tiny unit will heat up very quickly
  • Complaints of malfunctioning (or not functioning at all!) LED indicator lights
  • Very short life span

— FAQs | MinnKota MK-105P Portable Battery Charger —

  1. Does this charger begin to charge immediately when you plug it in? Or does it have a regulator of any sort?

Answer: There is a switch right next to the LED indicator lights which will let you control the on and off charging process.

  1. Can this portable battery charger be used to charge my auto?

Answer: Well, if you have an AC outlet then you could try doing it. However, we recommend that you rather invest in an alternator for your purpose. Safe and more effective that way.

— Final Words —

Portable chargers should be an essential in everyone’s repertoire, and the MinnKota MK-105P Portable Battery Charger is definitely not a bad place to start! This portable charger packs quite the punch for its size. W, however, can’t just look away from its flaws which can end up being a problem for many users. Either way, after assessing all advantages and flaws of the charger, we would just end this by saying that we are definitely getting a value for money products. It’s portable, powerful and very useful. We highly recommend the MinnKota MK-105P Portable Battery Charger!

This wraps up our review of this amazing portable charger. We hope you picked up some important points from our review here. However, for more details, you can always check the product link. We will see you next time!

Watch Video

Click Here to Leave a Comment Below 0 comments

Leave a Reply: