Schumacher ElectricBattery Charger and Maintainer, SP1297, 3-in-1, Fully Automatic, 3 Amp, 12 Volt, for Motorcycle, Car, Truck, and Marine Batteries

I really like that it is easy to connect to my vehicle's battery and maintain the charge. I use it on my Explorer conversion van as it is not a daily driver and it works great. For what it does, it was a good purchase. No more sluggish starts. I connect it as soon as we return from a trip and have not had any issues. The display is simple and after selecting your battery type it does it's job. When not in use, I keep it with the tools I might need when traveling.

The media could not be loaded. Works great for all my batteries. I like the percentage feature that lets you know the battery percentage charged. I was able to diagnose a battery that needed water added to it since it would not fully charge. After I added the distilled water the battery fully charged. Works great this is my second one. The other one still works I just use it as a battery maintainer on my truck. I have battery tenders and nocos this is the best one for the money. Quick charge and it shows the percentage charged on the display.

Good quality and has auto sensing features that charge and then maintain battery.

This charger managed to charge my battery and then switched to maintain mode. I've had it for a couple weeks and attached it to the battery a couple times, and so far it's doing what it was designed to do. It's easy to use and the instructions seemed fine.But here's why I can't give it five stars:The instructions specifically say to ground the negative clamp to the car's frame. However, the amount of cable between the two clamps isn't a whole lot. I connected to the only piece of metal I could reach while leaving the positive clamp connected and the charger didn't recognize a proper connection. I ended up clamping directly to the negative battery terminal, which obviously worked, but is in contradiction to the manual. (In addition to the clamps, it comes with quick connectors which connect to both battery posts, so I really don't know why it doesn't just tell you to do the same with the clamps.) Give me more separation of the cable ends so I can reach a proper grounding point.The other issue is the readout of the current battery level seems low. The first time I used the charger, my interior lights would still turn on but I was just short of enough juice to turn over the engine. The charger said I was at 0%. Which obviously isn't true if the power locks, lights, radio, etc. were working. It took the better part of the day to fully charge and shift into maintain mode.I took the car out for a spin and then reattached the charger three days later. This time, it said that the battery was at 32%, but it was fully charged in less than an hour, which seems pretty fast if the battery was really that low.Overall, though, it did the trick. It seems to hit a decent middle ground of features and price, from a brand you've actually heard of.

Quality through and through. From my motorcycle to a dead truck, gets the job done

I like it because it is simple to use and it maintains my batteries!!

In the World of Charger Maintainer's this is the Cat's Meow. I wanted a 3amp charger so I could use it on the Lawn Mower as well as the Truck and Tractor Battery. Also I didn't need a 6V Charger so I chose this one because it can charge lead Acid Flooded, AGM, Gel, and 12V Lithium Ion Batterie's. This Charger Show's the Current Batterie's State of Charge in %, and then proceed's to charge it, while showing in Real Time the % of Batterie's State of Charge! When the Battery is at 100%, the Charger will stop chargeing and Automatically go to Auto Maintain and Display that message. I use this on my 650cca AGM Truck Battery, 840cca Lead Acid Tractor Battery, & 250cca AGM Lawn Tractor Battery. Schumacher Customer Tech's will tell you that it can't be used on Large Batterie's but they don't know their Product's. I guess they don't know much about their Battery Charger's because they don't use them; the Charger's are Made in China, and I'm guessing the Engineer's that make their charger's are Chinese as well, and probly cause the Chinese now Own Schumacher and are just letting the American Customer Service keep their job's as a Good Will gesture. The woman answering the phone didn't even know how to navigate their own Website! The Tech's said that this charger wouldn't charge my 840cca or 640cca batterie's. I've been useing their 1.5Amp charger maintainer's on my 650cca, 840cca, and 250cca Batterie's for over 20 year's, so I knew that the 3Amp charger would charge fine and now I have one that will display the Batterie's State of Charge. This Charger Maintainer is the Best that I know of. The Slower that a Battery is Charged the Better it is for the Life of the Battery***UPDATE 2/7/23***My old 3A SP1297 is still functioning good. According to the Senior Tech @ Schumacher the New 3A SP1297 DOES NOT HAVE THE DESULFATEING MODE now. Also the 6A SP1298 DOES NOT HAVE THE DESULFATEING MODE. Just for added information in case you wanted a charger that has the ability to desulfate a battery. However according to the Senior Tech @ Schumacher the 3A SP1356 DOES HAVE THE ABILITY TO DESULFATE A BATTERY.***UPDATE 1/3/24***Led Display was starting to miss part of the Display so I decided to get a New one after 3 year's. Stumbled upon the FRO1542 4A Farm and Ranch Charger/Maintainer. According to the FRO 1542 User Manual @ SchumacherElectric.com (Farm and Ranch Charger FRO1542),,,It does everything that the SP1297 will do and a Lot More includeing Charging and Maintaining Small Lawn Mower Batterie's as well as Larger Batterie's UP TO 1000 CCA'S!!! AND IT IS ONLY 20 $'S ON AMAZON!!! Ordered 2 and seem's to work better on my 800 cca battery than the SP1297!!! I just ordered 2 More before they discontinue them. Schumacher doesn't seem to know much about them or Believe the User Manual ~ GO Figure. Schumacher seem's to only recommend a much more expensive charger. For 20 $'s these FRO1542 Charger's Should be Flying off the Shelf's. Don't be a Day Late and A Dollar Short, Get'm While They Are Available..