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TowerTop

TowerTop 3/15/25 Amp Car Battery Charger, 12V Fully Automatic Smart Battery Maintainer with Engine Start, Auto Desulfator, Battery Repair, for All Lead-Acid and LiFePO4 Batteries

    • Based on 6,361 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Tuesday, Nov 26
Order within 9 hours and 12 minutes
Available payment plans shown during checkout

Color: 25A Pro


Features

  • Quick ChargerUp to 25A quick charger, 4-Level adjustable current 3A/15A/25A/AUTO can meet your different needs. This 6V/12V smart car battery charger, with 85% high efficiency (industry average: 75%), ideal for STD, AGM, Gel, Wet, MF, EFB, Calcium, Deep Cycle, LiFePO4 batteries.
  • Fully-automatic ChargingAuto-identify and charging, auto-stop at 100% charging, auto-start in 30 seconds while you forget to press start, auto-restart to trickle maintain when the battery voltage drops. This battery charger can remember your previous settings, with no worry about AC power failure when connecting for a long time.
  • 8-Stage Charging ProgramIntelligent 8-Stage Charging include: Desulfation, Soft Start, Bulk Charge, Absorption, Analysis, Recondition, Float, and Pulse Maintenance. MCU controller monitor the whole charging progress, add charging precision, optimize battery power, and extend battery life.
  • Engine Start & Winter ModeEngine start delivers 100A current helps activating your car battery to start your vehicle in 100 seconds. Winter Mode, +0.2v on the basis of the original charging voltage, better boosts your battery activity and charges more thoroughly in low-temperature situations.
  • Battery RepairAdvanced Recondition mode uses slow pulse reconditioner technology to detect battery sulfation and acid stratification to restore lost battery performance, help to repair old/idle batteries and extend battery life. If your battery cannot be charged, you can try "Recondition" mode to repair your battery, pls Note: It can not repair a totally dead battery.
  • Multi Safety Protection & ETL CertificationThis battery charger offer multi protection against Spark,Reverse Polarity,Over Charge/Discharge,Over Voltage,Over Current,Overload,Overheat,Current Backflow,Short Circuit. Reliable cooling systems improve working performance. ETL certification makes it safe to use.
  • 18-Month Warranty18-month warranty for all TowerTop products. We have strong confidence in our products, hassle-free return or refund for any product quality issue. If you have any questions, please feel free to contact us, we will reply to you in 24 hours and give you a satisfactory solution.

Brand: TowerTop


Color: 25A Pro


Product Dimensions: 5.83"D x 8.58"W x 6.1"H


Item Weight: 2.25 Kilograms


Input Voltage: 12 Volts


Product Dimensions: 5.83 x 8.58 x 6.1 inches


Item Weight: 4.95 pounds


Date First Available: October 31, 2021


Manufacturer: TowerTop


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Nov 26

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • it's not a 5 star but it's a decent charger for it's size
Color: 25A Pro
i've been using it for several months and testing different modes, checking it's percentage accuracy, etc. auto mode in my opinion is useless for car batteries. the only usable modes are 15 amp and 25 amp. sadly the percentage is way off, not close to accurate. it mainly just shows 5%, 50%, 90%, rarely do you see anything else. other brands like vector and shumacher have a more accurate reading during it's charging. other brands know when a battery is bad and will stop charging it when it sees the voltage refuses to increase. this charger will continue to pump 25 amps all day all night all day all night. it wont' care, it just keeps the current. could be good? but really its just bad because thats outright dangerous. changing modes between lead acid, gel, and agm from my testing perspective observing the voltage and amp outputs over a period of time; seems like it doesn't actually do anything different. with schumacher the different mode option definitely changed the charging characteristics. overall it works, it's much better than the junk chargers made by dewalt. trust me i tried the several dewalt models and all junk. this one at least actually puts out 25 amps as you need it on trucks. ... show more
Reviewed in the United States on September 22, 2023 by David Le
    • A GOOD VALUE CHARGER.......
Color: 25A
Very pleased with the size, efficiency and easy to use operation with the 2/10/25 amp charging choices plus other battery service options. Wanted to stay below $100 price point and a large charger. A very good choice!!
Reviewed in the United States on November 21, 2023 by jimtahoe
    • Excellent Smart Car Battery Charger for the Garage
Color: 25A
I purchased this charger to replace my old charger that I had for 30 years. What a difference and upgrade to my tools for charging. Here are my observations. Pro: 1. [ Quick Charging] I love the 4-level adjustable current 2A/10A/25A/Auto setting. I can set the charger up to what I need whether I am charging a car battery, motorcycle battery, or tractor battery. 2. [ Fully-automatic Charging] The Auto setting is my favorite because I can setup and let it go. I would setup at the end of a night and let it go all night. It automatically shuts off and the battery is full charged. 3. [8-Stage Charging Program] The intelligent 8-stage charging works flawlessly in the auto setting. The best is the information it displays during the process. Works as stated. 4. [Engine Start & Winter Mode] I have used this mode twice. It provides 100Amps of charge. It helped my get my car started for work on a very cold morning. 5. [Overall performance] No complaints works as stated and meet my needs to dealing with all the batteries in the household. 6. [Price] Product is low price with high quality. Meets my expectations without breaking the bank. 7. [Durability] Case is well built and well mold to stand the dirt and grime of a typical garage. Cons: 1. [Case] A firm case would be nice for storage. Just using the box for storage. Could be an added item to improve the product. 2. [Screen] Screen is average quality for the product. Overall, I would rate this product as a 5 star. It meets my expectation of quaility, ease of use, value for the money and versatility. Excellent addition for normal household use. ... show more
Reviewed in the United States on August 17, 2023 by Roger W. Davis
    • This thing is cool but be patient
Color: 25A
If only my ex-wife had a brain like this thing. It's sometimes just as slow but it works and a lot better and it's faithful lol. Seriously though the button to change what type of battery or selected isn't really super active. Otherwise it does a great job recharging batteries and reconditioning as far as I've seen. You can put it on and hit the start button and walk away and it'll do its thing for days when you come back it's happy to say it's done and blah blah blah. ... show more
Reviewed in the United States on October 16, 2023 by Fredrick Ihlenfeld
    • Great charger
Color: 25A
This charger was able to restore a battery I had that wasn't taking a charge anymore and it restored it to where it could hold a charge.
Reviewed in the United States on November 21, 2023 by Yue V.
    • compact and versatile
Color: 15A
this little charger packs a punch. i bought this to replace an older and similar model that i broke. it works as expected ..
Reviewed in the United States on November 12, 2023 by djcharliec
    • Works well
Color: 25A Pro
Instructions are lacking
Reviewed in the United States on November 15, 2023 by Joseph Callahan
    • Plastic but works!
Color: 25A
When I first saw this, I was disappointed that it was small and plastic. I decided to try it anyway and it charged the battery really fast. It works really well and now I’m thinking lightweight isn’t so bad if it works good.
Reviewed in the United States on October 31, 2023 by Kindle Customer, Rose

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