Best Cen Tech Battery Charger for Your Needs

The CEN Tech battery charger is a versatile and reliable charger that can be used to charge a wide range of battery types, including lead-acid, AGM, and gel batteries. It features three charging modes: fast charge, slow charge, and trickle charge, so you can choose the right mode for your battery’s needs. The charger also has a built-in engine start mode that can be used to jump start dead batteries.

Battery chargers play a vital role in our everyday lives, from powering our cars and laptops to keeping our smartphones and tablets charged. With so many battery charger options on the market, it can be difficult to choose the right one for your needs. That’s where the Cen Tech battery charger comes in.

The CEN Tech battery charger is easy to use and comes with a variety of safety features, including reverse polarity protection, overcharge protection, and spark protection. It’s also backed by a two-year warranty, so you can be confident in your purchase.

Features and Specifications:

The CEN Tech battery charger is a manual charger that is packed with Features and Specifications including:

Automatic Charging: 

The charger automatically monitors the battery and switches to trickle mode once the battery is fully charged.

6/12V 2/10 Amps Rating: 

The charger can be used to charge both 6V and 12V batteries, with charging rates of 2 or 10 amps.

Compatibility with 12-volt Batteries: 

The charger is compatible with all types of 12-volt batteries, including lead-acid, AGM, and gel batteries.

50 Amp Engine Start: 

The charger has a built-in engine start mode that can be used to jump start dead batteries.

6-1/2 ft. Long Battery Cables: 

The charger comes with long battery cables that provide ample reach.

120v self-resetting Circuit Breaker: 

The charger features a self-resetting circuit breaker that protects the charger from overloads.

Cent tech battery charger gauge with a maximum limit of 16: The charger has a built-in gauge that displays the charging voltage.


The charger is spark-proof, making it safe to use.

Battery Reconditioning: 

The charger has a built-in battery reconditioning feature that can help to revive dead or damaged batteries.

Automatic Trickle Charging: 

The charger automatically switches to trickle mode once the battery is fully charged. This helps to maintain the battery’s charge and extend its lifespan.

Warning Lamps: 

The charger has warning lamps that indicate reverse polarity and a fully charged battery.

Copper-plated clamps: 

The charger comes with copper-plated clamps that provide superior conductivity.

Auto Shutoff: 

The charger automatically shuts off when the battery is fully charged.

Thermal protection shutoff: The charger has thermal protection that shuts it off if it overheats.

Duty cycle: 

The charger has a duty cycle of 5 seconds on with 4 minutes rest. This means that the charger will operate for 5 seconds and then rest for 4 minutes. This helps to prevent the charger from overheating.


Some packages include leather working gloves, a cleaning brush for the terminals, and seven digital millimeters.

The CEN Tech battery charger is backed by a 90-day limited manufacturer’s warranty. It weighs about 11.24 lbs. and has handles for safety while lifting it.

Important Safety Instructions:

To reduce the risk of fire, electric shock, or injury:

  • Do not expose the charger to rain or snow.
  • Use only attachments recommended or sold by the battery charger manufacturer.
  • To reduce the risk of damage to the electric plug and cord, pull by the plug rather than the cord when disconnecting the charger.
  • An extension cord should not be used unless absolutely necessary.If an extension cord must be used, make sure that:
  • The pins on the plug of the extension cord are the same number, size, and shape as those of the plug on the charger.
  • The extension cord is properly wired and in good electrical condition.
  • The wire size is large enough for the AC ampere rating of the charger as specified in Table A.
  • Do not operate the charger with a damaged cord or plug. Replace the cord or plug immediately.
  • Do not operate the charger if it has received a sharp blow, been dropped, or otherwise damaged in any way. Take it to a qualified serviceman.
  • Do not disassemble the charger. Take it to a qualified serviceman when service or repair is required. Incorrect reassembly may result in a risk of electric shock or fire.
  • To reduce the risk of electric shock, unplug the charger from the outlet before attempting any maintenance or cleaning. Turning off the controls will not reduce this risk.

Additional safety tips:

  • Always wear safety glasses when working with a battery charger.
  • Keep the charger away from flammable materials.
  • Do not smoke or operate the charger in a closed-in area.
  • Be careful not to overcharge the battery.
  • If the battery becomes hot or starts to smoke, stop charging immediately.
  • By following these safety instructions, you can help to prevent accidents and extend the life of your battery charger.

Pros and Cons of Cen Tech Battery Charger:



Safety is the top priority of the CEN Tech battery charger. This 12-volt charging unit features a suite of built-in safety features to protect you and your battery from potential hazards.

Auto shutoff automatically turns off the charger when the battery is fully charged, preventing overcharging and potential damage to the battery.

Reverse polarity alert warns you if the positive and negative battery terminals are reversed, helping to avoid sparks and short circuits.

Thermal protection shutoff turns off the charger if it overheats, preventing damage to the charger and battery.

Self-resetting circuit breaker protects the charger from overloads and automatically resets once the overload is removed.

Spark proofing helps to prevent sparks and explosions, especially when connecting or disconnecting the battery terminals.

With these safety features in place, you can be confident that the CEN Tech battery charger is safe to use and will protect you and your battery from harm.

Works Great & Suits a Variety of Charging: 

 Besides safety, another notable benefit of this product is that it works great and charges several types of batteries other than car batteries. The Cen-Tech car battery charger makes sure a battery receives a fixed amount of electricity, preventing overcurrent related battery damages during the charging process. Apart from that, it automatically stops chargingthe battery once the battery is fully charged, further preventing damage and wastage of power. Plus, it charges not only car batteries, but also many other types of batteries, including generator batteries and so on, making it a useful product for many charging applications.

Extends the Lifespan of Your Battery: 

The Cen Tech battery charger is designed with the service life of your battery in mind. This product does not charge just for the sake of it. It resuscitates the internal components of your battery that are slowly dying, optimizes the components, and prevents charging related damages from killing them further. That extends the service life of your battery to a greater extent.

Engine Start: 

Besides built to extend the service life of your battery, the Cen-Tech heavy duty battery charger is also equipped to help you jumpstart your car when your battery is low. With the incredible engine start feature, you do not have to wait until your battery gets fully charged before you can start your engine. All you have to do is to connect the charger to your engine through your battery and then try to jumpstart the car.

Portable and Lightweight Design: 

Last but not least, the Cen-Tech automatic battery float charger for automobiles is incredibly portable and lightweight, measuring 10 cubic inches and weighing slightly above 11 pounds. That makes it easy to store in your car, secure and comfortable to travel with for battery emergencies that may arise when you are on the move.


A Fairly Short Warranty: 

The first drawback of the Cen Tech battery charger is the type of warranty that comes with it. This product comes with a 90-day limited warranty. While the manufacturer vouches for the product, maintaining that it is free from defects in materials and quality, the fact is that a 3-month warranty is too short to sufficiently cover potential errors that may arise from a substandard. In our view, this warranty is limited, meaning it does not cover every possible defect. In our opinion, the product can do better with a more extended warranty like 12 months or so. But do not worry about that, this is one of the best quality battery chargers on the market that is not going to break as soon as you may think.

Must Be Charged In Advance:

Another disadvantage of this battery charger, just like others, is the fact that it must be charged in advance if one is to benefit from it during a time of an emergency. If you have not charged the charger since the last time you used it and the unit is sitting somewhere in your trunk, collecting dust, it might now be of help with your drained or dead battery. In other words, it may only be convenient if charged in advance and appropriately stored before use. So, for the lazy and careless folks, this product requires some effort to impress.

Fairly Costlier: 

Last but not least, the Cen tech charger for car batteries and other types of batteries seems to be a little bit on the high end in terms of price. That is according to what many buyers have had to say regarding this portable unit. However, as mentioned earlier, the higher the price, the higher the value of a product.

Operating Instructions:

Cen Tech Battery Charger 2

Function Select button:

  • Press to cycle through below functions:
    a. 6V/12V 2a – Slow Charge.
    b. 12V 10a – Fast Charge.
    c. 6V/12V 40a boost – Quick charge.
    d. 12V 200a Engine Start.

Start/Stop – Start or stop function.

  • LED indicators:
    a. Reconditioning: Comes on when Battery is deeply discharged.
    b. Cables reversed: Comes on when battery Cables are reversed.
    c. Maintenance: Comes on when battery is fully charged.
    d. Voltage: Comes on when voltage is being displayed.
    e. Current: Comes on when amperage is being displayed.
    f. Status: Comes on when status is being displayed. Example: cHarG will display while battery is charging.

Display Select: Cycles through Voltage, Current and Status displays.

  • Digital Display:
    a. XX.XX V: Voltage.
    b. XX.XX a: Amperage.
    c. EF-02: Short circuit.
    d. EF-01: Cables reversed.
    e. Chag: Charging.
    f. Full: Charged.
    g. XX S: Cooling countdown.
    h. EF-03: Reconditioning failed.
    i. EF-04: Charge aborted.

If you’re looking for a reliable and versatile battery charger that can meet all your needs, the CEN Tech battery charger is the perfect choice.

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