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TowerTop 12V Smart Battery Charger and Maintainer (TowerTop BC-025)
- Charge 12 Volt Lead Acid batteries including Standard, AGM, GEL, and Sealed Lead Acid.
- LCD screen displays charging status and battery status with easy-to-understand icons.
- Start Aid function can optimize the power of your battery in 100 seconds, giving you enough power to start most cars.
WARM PROMPT: (1) For 12V lead-acid battery only, not for 24V battery and all lithium batteries. (2) Do not charge a frozen or dead battery that has gone to 0V.
8-STAGE CHARGING AND MAINTENANCE MODES
- Desulfation: Pulse charge to break down the buildup of lead sulphate crystals on a battery discharged or idled for a long time, seriously affecting the performance and lifetime of battery.
- Soft Start: A slow steady buildup of the charging process that limits the power supplied to protect the battery.
- Constant Current: The main part of the charging process where 80% of the charge is applied.
- Constant Voltage: Fully charges the battery by slowly reducing the charge rate to allow the battery to absorb more power.
- Analysis: Automatically test the state of the battery after charging, if the battery is abnormal, it will enter the repair stage; If the battery is normal, it will enter the floating charging stage.
- Recondition: Unique charge state to recover deeply discharged batteries. After repair, return to the constant current stage to continue charging. If repair fails, an error will be reported.
- Float: Maintains the battery at 100% charge without overcharging or damaging the battery, allowing the smart charger to be left connected to the battery indefinitely.
- Pulse Maintenance: Auto-wake up and pulse compensate voltage to 100% full again when detecting the voltage of battery drops to below 12v. Perfect for intermittent use of batteries.
Ensure a hassle-free charging
- Bring Batteries Back To Life -
- Rated Input Voltage: AC 120V / 60Hz
- Input Current: 9A
- Rated Output Voltage: DC 12V
- Working Temperature: 32°F (0°C) - 104°F (40°C)
- 1 Battery Charger
- 1 DC Output Cable with Clip Connectors
- 1 User Manual
How does the charger protect you and your battery?
Charging Time (T) = Battery Capacity (Ah) / Charging Current (A)
TowerTop BC-025 Battery Charger Stringently lab-tested in certified testing facilities. The Charger has ETL/BC/FCC certification.
The battery charger/maintainer has multifunctional safety technology including protections against short circuit, spark, reverse polarity, overcharge, over-voltage, overheating, making it totally safe for anyone to use.
This allows you to extend the battery life of lead-acid batteries while allowing your vehicles to operate more efficiently and stably.
- Not applicable to lithium batteries; It is not a "Jump Starter".
- Do not attempt to fix the charger by disassembling or modification.
Fully Automatic System
- With Smart Detecting System, Automatic current selection, Automatically identify low voltage, Automatically stop after fully charged.
- Fully Automatic Charging, shutdown, restart to pulse compensate to 100% full again.
- "2A & GEL" for the automatic mode.
1V Low Voltage Detection
- A good savior for your deeply-discharged batteries.
- Detect the drained batteries down to 1-volt (Industry Average: 3-volt and even higher).
- Smartly identify, charge, repair and pulse maintain.
- Recover battery's lost performance.
Superior Temperature Control
- When the charger is in constant current and constant voltage stages (the charging current ≥ 2A or the temperature ≥122℉), the fan works normally to make it higher efficient.
- Add 0.2V more on the basis of the initial charging voltage to boost battery activity in the cold weathers.
Upgraded All-Inclusive Battery Clip
- Insulated all-inclusive chuck, no worry about leakage.
- Bold inner core, stable current, no damage to battery.
- Large bite force, not fall off.
- Ideal for "Side-posts Connection".
Excellent ABS Shell
- Hard, excellent impact resistance.
- Good flame retardancy.
- Corrosion resistance.
- Good electrical insulation.
- Widely used in automotive, electronic communications, construction, etc.
Lightweight and Portable Design
- Ergonomic design, the flexible handle makes the charger more portable. It’s a great addition to your tools for your car.
- Equipped with a velcro on the cables to help you quickly sort the cables and conveniently store the charger after use.
Michael Louie
Reviewed in Canada on March 23, 2025
Good little charger. Lightweight. Works for my needs.
Gary Babin
Reviewed in Canada on February 24, 2025
It works well, small and light
Lorne Buckingham
Reviewed in Canada on February 15, 2025
Good buy
Leslie D. Kerluke
Reviewed in Canada on January 4, 2025
Works like a charm. Was able to revive a current vehicle battery that I thought was gone. Easy to use this charger and has lots of options
Customer
Reviewed in Canada on January 4, 2025
So far I have charged 4 batteries ranging from some AGM cells for my UPS and a standard car battery. It works perfectly. My multimeter shows the batteries as fully topped up. No complaints on performance. Well packaged when shipped so I didn't have to worry if it took damage during shipment.
M. Aldred
Reviewed in Canada on January 27, 2025
I really like the size seems to charge well I like the multiple options and I also enjoy the fact that it is a smart charger
Doc
Reviewed in Canada on May 29, 2024
Lots of features for the price point. Seems to work well. Read the owners manual. It's a bit tricky to access the features.
Philip E.
Reviewed in Canada on December 17, 2024
Arrived on time and right out of the box it was a no brainer to use just plugged it in and it went straight to work and charged my truck battery within few short hours.My truck has a parisitic current draw since recent body work and haven’t been able to locate it just yet so it can drain in a few days with out warning.Very pleased with the charger’s performance to top up other batteries in my toys as maintenance.
Roger W. Davis
Reviewed in the United States on August 17, 2023
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.
Customer
Reviewed in the United States on March 31, 2023
Bought this to mostly charge batteries on 2 old cars I have in the garage and a motor cycle. One has 7 year old battery and the other one is 10. Hooked this thing up and it worked it's magic checking and prepping and both batteries fully charged. It took overnight. I also have a solar project with 2 100 ah lithium batteries. Wanted to keep them in good shape since it is not put together yet. On auto and lithium, it would only do 13.6 volts and 2.5 amps. Lithium wants 14.4. So I set it manually to 8 amps and it started to charge at 14.1. Takes 11 hrs at that rate so paused it and set to 15 amps. It jumped up to 14.7 volts which only takes 5 hrs at 15 amps according to battery info. We will see how it last. So far it is above my expectations.
Chris Davis
Reviewed in the United States on February 10, 2023
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.
Luis C.
Reviewed in Mexico on April 21, 2023
Me gustó lo fácil de usar y práctico tamaño aunque al principio pensé que no funcionaría para una batería AGM ya que había comprado uno más grande para mayor amperaje de trabajo y no cargaba una batería AGM que estaba al 3% de carga y cuál fue mi sorpresa que este a pesar de ser más pequeño la cargó sin problema y en otro batería AGM que estaba al 1% también la cargo sin problema, las baterías, excelente opción.
michael kelly
Reviewed in Australia on November 21, 2022
This is 120v USA charger so not suitable to Australia. How can you sell this to Aussie customers???
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