You have a classic car, a classic motorcycle, a jet ski, a boat, an RV, an ATV or other vehicle with a 12 volt battery that you’re planning to store for the winter and you’re wondering how you’re going to keep it conditioned and ready to go in the Spring when you are ready to go again.  That’s where the Battery Tender Plus comes in.  You want to plug in, set, and forget your charger and not have to babysit it all winter long.  Again, that’s what a BT Plus does for you.



If you’re looking for the best car or other vehicle charger/tender for 2014, you’ve come to the right place.  This article takes a look at what we consider to be the best of the best; the Battery Tender Plus by Deltran.

Battery Tender Plus 021-0128: Best Car Charger/Tender

Battery Tender Plus 021-0128 Hi Res Full ViewAll charger/tenders are definitely not “created equal.”   Some have more power, some do a better job of conditioning and maintaining your battery, and still others are reliable enough to leave hooked up all winter long without manual monitoring.  The Battery Tender Plus 021-0128 12-volt battery charger/maintainer by Deltran brings all of these great attributes together in one compact and portable package.  BT Plus features advanced technology designed specifically for today’s sealed lead-acid batteries.  Microprocessor-controlled with a four-stage charging process, the BT Plus will charge and maintain your vehicle’s battery without overcharging and without constant monitoring. Take a look at its long list of features.


  • You won’t find more advanced technology than the microprocessor built-in to every BT Plus charger/maintainer.  It controls an automatic 4-step charging program that maintains vehicle batteries at full charge without overcharging or damaging them.





  • The Plus’ complete charging program included Initialization, Bulk Charge, Absorption Mode, and Float Mode.
  • Your vehicle will be ready to go when you are thanks to advanced technology that can actually extend your battery’s life up to 3 times!
  • This tender’s Float Mode detects when your battery’s voltage drops too low and resumes full charger output power until it isBradley Fighting Vehicle Full View back within operating specs, automatically.
  • This model is the tender of choice for charging and maintaining Bradley Fighting Vehicles and HUMMV’s fighting the good fight for America around the world.
  • Trusted by the U.S. Military and used by millions of satisfied customers in home and service centers worldwide, the Battery Tender Plus should be your first choice when it comes to tenders.
  • Did you know that temperature changes can affect the output voltage and conditioning of some chargers?  You don’t have to worry about temperature changes with a temperature-compensated charger like the Battery Tender Plus.
  • You will appreciate that the BT Plus is both a charger and a maintainer.  It protects your battery by keeping it from discharging during periods when it is not being used and promotes long battery life by conditioning the plates and preventing sulphation.

Convenience and Ease-of-Use

  • With the BT Plus you will have the flexibility to charge any lead-acid, flooded, or sealed maintenance-free battery including standard and sealed AGM and Gel Cell types
  • It doesn’t get any easier or more convenient that the BT Plus.  With 1.25 amps of charging power, it will safely and reliably charge and maintain your vehicle’s battery without constant monitoring.
  • Connect and forget.  This charger will charge and maintain your battery automatically without overcharging.
  • You will be in the know with the BT Plus’ solid state, two-color LEDs that keep you informed of charging state at all times.

Battery Tender Plus 021-0128 Deltran Logo


  • You don’t have to worry about overcharging with the BT Plus.  When your battery is fully charged, it automatically switches to float/maintenance mode voltage to keep your battery voltage at the proper level without overcharging.
  • The BT Plus features fully spark-proof connections as well as short circuit and reverse polarity protection for safe charging and maintenance.


  • The BT Plus weighs in at a lightweight 2.3 lbs. and measures a compact 11 x 4 x 11 inches.  It is very portable and easy-to-use in tight spaces.


  • Deltran provides a generous, limited 10-year warranty against defects in materials or workmanship on the Battery Tender Plus.Battery Tender Plus 021-0128 10 Year Warranty Logo


  • Very good quality
  • Great value
  • Easy to use
  • Connect and forget


  • Needs more function indicators
  • Gets very warm
  • Needs longer contact leads
  • Initial charge can take a long time


Click Here To Read More Battery Tender Plus Reviews >>>

Click Here To See The Battery Tender Plus 021-0128 Battery Charger >>>



Battery Tender Plus 


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As always, thanks for reading!  I hope this article has given you valuable information that you can use when comparing the Battery Tender Plus to other models you may be considering.