TowerTop2/15/25 Amp Car Battery Charger, 6V/12V Fully Automatic Smart Battery Maintainer with Engine Start, Auto Desulfator, Battery Repair, Winter Mode, for All Lead-Acid and LiFePO4 Batteries

Definitely worth it. I have used this multiple times for myself and to help others. If you travel, being able to jump your own vehicle without calling someone else is a huge time saver. It’s easy to charge and easy to use. I have a King Ranch that hadn’t been started in months. It turned the battery immediately. This would be a great item for your college age children or honestly any driver.

I purchased this mid October 2023. Review is almost one year of use, now end of August 2024. I use this to trickle charge the battery on a 25+ year old vehicle that loses electricity sitting in the driveway, because I hardly ever drive it. I use this device to make sure it is topped off every couple of weeks. If I drove my car daily, or at least once per week, I would not need the trickle charger. Before I purchased this conditioner, I had left my car unattended for a couple of months. Saw it on Amazon and thought I'd give it a try before having to buy a brand new battery for my old car. This device at first indicated that my car battery was unable to charge as a 12 volt car battery. Luckily this battery charger was able to step down and charge it as if it was a motorcycle battery. I thought I'd try that and get some juice into, before opting to buy a replacement battery. After a day of recharging from the lowest setting, I was able to recondition the old car battery back to life, restart the car, and be able to drive more than 100 miles on the recharged battery. Now I use it often to make sure my unused car keeps it's charge when I'm not driving it. I just wish that the unit had a physical on off toggle switch. Instead the on off of the device is by plugging it into the outlet. It's recommended to be used directly into a wall outlet and not into a strip surge protector. I use a heavy duty 10 gauge extension cable and a GFCI adapter that has an on off physical switch on the GFCI outlet for extra protection. The other thing that you have to be careful with this charger is using it when the weather is bad. Make sure you do not use this when it is raining. This trickle charger is a slow charger, which I like. It may take awhile for it to charge up the battery, maybe a few hours, depending on how depleted your vehicle battery is. I tend to not wait for the charger to reach full capacity of the battery. I charge it to 3/4 of fullness to make the battery last longer. YMMV. Overall, this battery conditioner has been a life saver.

I'm giving it 4 stars, because a few things bugged me about it. I bought this for my GF and her daughter. I did not do my normal research but this had a lot of high ratings so I bought it. Trying it out myself, some things surprised and aggravated me. It was extremely small and light, unlike other chargers I have. I assume this is because it's not a high amperage charger.The clips for attaching to the battery or other connection points are not copper. I'm no expert but pretty sure I've never seen a charger with non-copper clips/clamps. I assume the clamps are less conductive than copper, but is that a big deal here....probably not.The plastic protection on the clamps is so thick I could not clamp to the side-mount terminals on my truck battery. And yes, I know you should not connect directly to the battery, but I sometimes do. Had to connect elsewhere.I connected to my seldom-driven truck and the charger indicated the battery was at 60% charge. It charged for about a minute or two before I decided I needed to reposition the charger. When I reconnected the charger almost immediately, it indicated 100% charged, and would not start charging. I assume (like a lot of smart chargers) it was thrown off by the 2-minute surface charge (again, I am no expert). I could not get the charger to start charging again until I turned on the headlights to drain the battery a little, then reconnected the charger and all was fine. The charger showed this same peculiarity with other batteries. I should look at the instructions to determine if I need to do something different, but I've noticed when the charging is complete, the unit appears to shut off completely. Maybe it's a timing thing but when left charging all night, the charger appears dead the next morning; nothing on the display, which bothers me. It immediately shows 100% charged when you turn it back on.All in all, a great charger for my GF. It has the usual protections against reverse hookup and all that. The display continuously rolls through various status screens and is informative. Again, except for a little aggravation, I'd have given it 5 stars.

I’m in an industry that uses a LOT of 12 volt battery chargers every day. This one is easy to use, easy to read, hard for trainees to mess up with. Coming in the next day to uncharged batteries is a Very Bad Thing where I work. This charger passes all the tests.It charges quickly enough, and doesn’t have a complicated usage. Some chargers need a double click. Some chargers need to make sure you push THIS button and not THIS button. Some chargers take forever to give you a reading. Some chargers if you push the wrong button, you’ll ruin the battery.This one is hook it up, it instantly shows you the percentage. Push the one button, off it goes. Display changes to show that it’s charging. Done and done.This one seems to last longer than many other types as well. The clips also seem to be well attached. Some clips pull off easily. These are strong clips that are well attached. Clips are important when you use this daily. These are good clips.My company uses probably 10 or 12 different kind of 12 volt battery chargers. This one is my best recommendation.

Tiny, light weight, easy to carry around. Does everything a larger charger does, including engine start.

Not a fast charger if the battery is low but does a good job and identifies bad batteries. Easy to use