We have been saying for several years that, if you own an older battery charger, you should be seriously thinking about replacing it. There were many reasons for us to make this suggestion, but we believe that those reasons have now hit such critical mass that the time really is now. Below, we break down the top 7 reasons why.

1a. and 1b.  AGM Batteries and Start-Stop Systems

AGM (Absorbent Glass Mat) batteries are lead acid batteries that use a special construction to deliver higher performance than a typical flooded lead acid battery. In this case, the special construction is that the lead plate in the battery is wrapped using a fiberglass mat material rather than simply being suspended in the liquid electrolyte of a standard flooded battery. The fiberglass mat allows battery manufacturers to make each individual plate thinner, with more plates packed into a given battery case size. The AGM construction typically delivers greater starting power (more plate surface yields greater power), improved vibration resistance (the fiberglass mat results in a more stable construction) and increased cycling capability (ability to be drained more deeply without adverse consequence).

We have been talking about AGM batteries since 2006-2008, when they were found in a limited number of vehicles, such as the Gen 1 and Gen 2 Prius, Corvette and Grand Am models, and a smattering of imports. Since then, the AGM has gained considerable share as the OE battery of choice. This is particularly true when it comes to vehicles equipped with a Start-Stop system built for the North American market, where the AGM battery is the dominant type used.

But why does the growing popularity of the AGM battery influence the type of battery charger you should be using? AGM batteries require very specific charging routines and precise voltage control for proper charging and long battery life. Otherwise, the battery is not likely to last very long at all. Traditional chargers (volts go up, amps go down) have very little control of voltage output and brings the battery’s voltage as high as 16 Volts and higher. That’s bad news for an AGM, which typically doesn’t want its voltage raised above 14.6V or so (in normal temperatures). Also, AGM batteries require specific charging stages (constant current bulk charge stage, for example) for successful, beneficial charging. These required charging stages need a smart charger to deliver them – the indiscriminant power delivered by an old school charger does not fit the bill. So, whether you need a charger for a car, truck, boat, powersport vehicle, tractor or something else, do yourself a favor and make sure your charger can provide the proper power your battery requires.

2. Vehicle Electronics

Like AGM batteries, the electronic modules that control almost every function of vehicle performance are extremely sensitive to excess voltage. If a traditional charger with very little or no voltage control is connected to a heavily depleted battery, its voltage output could exceed 16 Volts and even eclipse 17 Volts. This could spell trouble for modules and other sensitive vehicle electronics, which are difficult to repair and expensive to replace. Modern smart chargers precisely manage output voltage to eliminate the risk posed by the unregulated output seen in older chargers.

3. Temperature Compensation

As we noted above, modern batteries are sensitive to many different variables, including temperature. All batteries prefer to be charged less as temperature rises and more when temperature drops. Older chargers charge in all conditions as if it were always 70˚F. This one size fits all approach results in overcharging batteries in hot climates and undercharging them in cold temperatures. Many smart chargers, such as our PRO-LOGIX chargers, feature temperature compensation to ensure that each battery charged gets exactly the charge it needs, no matter the temperature.

4. Longer Useful Battery Life

A key reason for choosing now to invest in a quality smart charger is that doing so can extend the useful life of your batteries. It is not uncommon for our customers to report extending battery life by two, even three, extra seasons as a result of deploying PRO-LOGIX chargers. This is a result of the more beneficial charge delivered by the smart charging curve of PRO-LOGIX combined with the enhanced maintenance mode offered by PRO-LOGIX chargers (more on this below). The great news is that the advanced multi-stage charging routine needed by newer battery types, such as AGM, Gel Cell and Spiral Wound batteries, is also extremely beneficial for traditional flooded batteries. Choosing a charger that helps ensure those batteries are ready when you need them and prolongs their useful life is an investment that has the potential for huge returns.

5. Managing Problem Batteries

Similar to the preceding reason, getting more out of your batteries or overcoming problem situations involving your batteries through the use of a smarter, more effective charger is another smart move. We’ve all encountered situations involving problem batteries. One good example of this is early battery failure due to sulfation, which occurs most often when a battery isn’t used regularly. In such situations, periodic charging with a smart charger like our PRO-LOGIX series will combat a battery’s natural creep towards sulfation or mitigate that sulfation if it is present in a battery under service. Another example comes when servicing a severely depleted battery. Our PRO-LOGIX chargers feature a built-in soft start routine to slowly bring a deeply discharged battery back to full charge. This is best for the battery’s health and longevity.

6. Power Supply Function

As today’s vehicles grow increasingly complex, more and more repair and maintenance tasks require that system voltage be maintained above a minimum threshold throughout the service event. The best way to accomplish this goal is to utilize a smart charger with a built-in power supply mode. This type of feature has been incorporated into select portable chargers, in the last 5 years or so, as application demands have necessitated it. Whether an operator is diagnosing an intermittent electrical problem, performing a repair on an electronically controlled subsystem of the vehicle or running an ADAS recalibration, stable power is now a common requirement for a successful service event.

7. Battery Maintenance

We’ll end with a big one. If you perform any type of long term storage charging, such as is often done for out-of-season motorcycles, watercraft, ATVs, muscle cars and more, there is a great incentive to upgrading your charger / maintainer to a current, smart charging model. For decades, most chargers simply went into a basic float mode when the battery reached full charge. While this is not necessarily bad for the battery, we would argue it is not the best way to handle a long term charging situation. From our perspective, float charging keeps a battery charged and ready to use but does not optimize the overall health of the battery.

Some of today’s smart chargers feature a more complex storage charging routine, though this can vary by brand and model. Our PRO-LOGIX chargers utilize an enhanced maintenance mode that, once a battery reaches full charge, puts the battery into a period of rest followed by an exercising phase, where we simulate a starting event. Then, we come back and run a full charging routine. We believe that this results in a deeper, more beneficial charging cycle, improving battery longevity and overall health as compared with a standard float mode.

PROFECT Your Charge with PRO-LOGIX

As we have noted several times above, PRO-LOGIX battery chargers deliver the features needed to properly charge all lead acid battery types quick and beneficially. From their multi-phase charging process, ability to manage problem charging situations, incorporation of added functionality such as power supply mode and enhanced maintenance mode for optimal long term storage charging, they cover the wide range of functions and capability needed by today’s vehicle owner.

With a wide range of models, from our 4A PL2140 Charger / Maintainer to our 100A PL6100 Power Supply that supports vehicle reflashing, there’s a PRO-LOGIX charger to address virtually any application need. Each model delivers the same beneficial charging routine, with the robust components and quality construction that deliver continuous performance in even the harshest industrial charging environments.


29 thoughts on “7 Reasons Why You Need a New Battery Charger”

  1. I wonder if Clore has any recommendations for battery charging golf carts that are electric? I have a 1998 Club Cart that is a 36 volt – 6 deep cell batteries. The charger is also a 1998 charger that I am sure is outmoded. It charges it overnight and than shuts off and once it shuts off it does not come on again unless you unplug it and rest art the charge process.

    Is there a charger that will charge my golf carts 6 deep cell batteries and than restart on it’s own if I don’t use the cart for two weeks to a month?

    1. Richard – We would agree that updating your golf cart charger would be beneficial. You have a big investment into those batteries and it would be in your best interest to get the most out of them. Finding one that properly maintains your battery during storage periods is definitely a good idea. We do not currently produce a golf cart charger for 36 or 48 Volt batteries. I found this page, which might be of interest: https://golfsquawk.net/golf-cart-battery-charger/. I hope this is helpful. Jim from Clore Automotive

  2. Enjoyed the article will be buying 1 of any of these battery chargers mentioned in this article in the very,very,very & I mean very near future as the expression states time 4 not only 4 an update & an upgrade…

  3. this is all very nice and informative, but must be taken with a grain of salt in that a preponderance of the info stems from a source with a vested interest in the all-too-predictable solution;

    it would carry more weight at least with me were several battery and vehicle manufacturers to support it, and even more where a more objective consumer reporting site to side with you;

    until then, allow me to stick with my few years old battery tenders my vehicles still seem to respond well to;

    1. zatara – Yours is a reasonable response. Of course, you are correct, we have a vested interest in this discussion. That said, essentially every AGM battery manufacturer has said the same,as well as OEMs, such as Toyota. They have been shouting from the rooftops for 13 years that the Prius 12V battery should not be charged with a traditional charger. Again, though, we understand your skepticism. Thanks, Jim from Clore Automotive

    1. Truman – Honestly, we are not aware of one. We definitely do not have one to offer. We get a few requests for one each year, but really do not see enough demand to warranty the development of a 6 Volt model. Thank you, Jim from Clore Automotive

    2. You can easily enough build your own. Check out YouTube videos on building lithium ion battery packs. Just use half the batteries that a 12volt uses. I would think two in series and six or eight more in parallel to get the needed amps.

  4. Hi,what model jump pack do you reccomend for starting 7.2 diesel engines? I have a 1992 Ford F-250XLT4WD SuperCab Centurion,7.2 Liter Diesel Engine. I purchased new.

    1. John – We would recommend the JNC950. With its larger battery, it has the capacity to provide the starting power and cranking duration you will need for your larger diesel engine. Thanks, Jim from Clore Automotive

  5. seldom comment on articles or offer negative opines related to products. That said, the Pro-Logix charger shown on the lead in photo to this article are absolute junk! Bought 2, both failed within several months of purchase, warranty is horrible and customer service does not exist!
    Would detect faults in batteries that did NOT exist, would not work 70% of the time, even when they would power up. Save your money and aggravation!

    1. JeffM – We are very sorry that you have had a bad experience. We would suggest that is not the typical experience for our customers. All PRO-LOGIX portable charger come with a one-year over-the-counter exchange warranty available. We are sorry if you weren’t able to get your warranty properly serviced, either in the field or by us. I will send you a message to follow-up. Thanks, Jim from Clore Automotive

  6. As an addendum to my original post, I have to compliment in the highest of terms the professionalism and customer service related to the prior noted failure of the 2 failed Solar Battery chargers!
    Clore Automotive, via an excellent company representative that requested he remain anonymous, contacted me privately, discussed the particulars about my original unfavorable experience and immediately took action to correct the issue. Without request, Clore Automotive, sent me two (2) new replacement chargers at no charge and a pre paid UPS return label to send the 2 failed units back for them to analyze as to cause of failure.
    Fantastic customer service, the individual from Clore is honorable and personally focused on customer service! Can’t thank him enough and Clore Automotive has gained a customer for life! By far the very finest post sale customer service I have ever received from any source, exemplary!

    1. JeffM – We are glad we were able to get the issue resolved. Our team looks forward to analyzing the units to determine the root cause of unit failure. We appreciate your help in getting this resolved and getting the units back to us. Thanks, Jim from Clore Automotive

    1. Ron – Thanks for your question. I am not sure if either model has an AGM battery. If so, the answer is probably yes. Also, if you are using an older charger (rectangular metal box), you would probably benefit from a charger update, even if your vehicles have flooded lead acid batteries. I hope this helps. Thanks, Jim from Clore Automotive

  7. What about the 3 cell 6 volt batteries we have in our vintage Fords (among others)? Those batteries don’t seem to last like they once did.

    1. Ken – Great question. In our opinion, all batteries benefit from the precise charging control available on newer, smart chargers such as our PRO-LOGIX battery chargers. Particularly if the battery is installed in a vehicle that is only used occasionally. The enhanced maintenance mode deployed inour PRO-LOGIX chargers is optimized for long term storage battery maintenance. I hope this helps. Thanks, Jim from Clore Automotive

  8. What charger would I need for a 12 volt motorcycle battery? It’s not used during the winter months here in Green Bay for at least 7 months. Also, where would I get one, and do you know a price range? Thank you very much.

    1. Steve – Thanks for your question. We would recommend the PL2140. It is specifically optimized for the type of usage your describe. It also has multiple output options, so you can choose the one that works best for you. And, its Recovery Mode would allow the unit to overcome power outages. It is available from most outlets serving the professional channel, including independent auto parts stores, NAPA, Auto Value, Bumper-to-Bumper, Carquest and more. Not all locations carry all products, so we’d suggest calling ahead. If a specific location doesn’t have one in stock, they should be able to get one in within a day or two. Thanks, Jim from Clore Automotive

    1. Herman – Thanks for your questions. PRO-LOGIX battery chargers can be found virtually anywhere professional tools and equipment are sold, including your local independent auto parts store, NAPA, Carquest, Auto Value, Bumper to Bumper, as well as a wide variety of online resellers. Thanks, Jim from Clore Automotive

Leave a Reply

Your email address will not be published. Required fields are marked *