Battery Tender 021-0128 Battery Tender Plus 12V Battery Charger

Other products by Deltran

Product Features

• Temperature compensated for optimum charge voltage
• Automatically switches from full charge to float charging mode for top performance
• Reverse polarity protection to ensure user safety
• 10-year warranty
• Safe operation

Product Details

• Product Dimensions: 11 x 4 x 11 inches ; 4 pounds
• Shipping Weight: 2.6 pounds (View shipping rates and policies)
• Shipping: Currently, item can be shipped only within the U.S.
• Note: Gift-wrapping is not available for this item.
• ASIN: B00068XCQU
• Item model number: 021-0128
• Average Customer Review: 4.9 out of 5 stars See all reviews (194 customer reviews)
• Amazon.com Sales Rank: #4 in Automotive (See Bestsellers in Automotive)

  Popular in these categories: (What's this?)

  #2 in	Automotive > Tools & Equipment > Jump Starters, Battery Chargers & Portable Power > Battery Chargers
  #2 in	Automotive > Replacement Parts > Batteries & Accessories

Product Description

Product Description
BatteryTender Plus is the most advanced charger/maintainer on the market specially designed for today's sealed lead acid batteries. The BT Plus uses micro-processor technology in a four stage charging profile to charge, improve, and float your battery so it is ready when your are. Constant current charging and regulated voltage patterns allow the battery to be recharged fully and safely without the fear of overcharging.

Customer Reviews

Most Helpful Customer Reviews

45 of 47 people found the following review helpful:

5.0 out of 5 stars A Must for Garage Queens, June 22, 2007

By	F. Dumanoir "vintage hifi-geek" (Katy, Texas United States) - See all my reviews (REAL NAME)

Every time I want to fire up my old 71 Datsun (that's Nissan for those of you younger than 30) 240 Z there's a good chance that the battery has drained down and that I can't start it! Looking around at car forums I read about this nifty little gadget....It's like a battery trickle charger....sort of. Whereas it's not recommended to keep a trickle charger hooked up all the time, this one has circuitry to limit the current and sense when the battery needs charging. It only charges at 1.25 amps which is easier on the battery.

I've had it on for a month now and it's great. The first couple of days, the red light was on indicating charging. Since then it's been on green and the car starts right up. I live in Houston where the heat and humidity can be just as brutal on batteries as the cold.

I highly recommend this "tender" for those that have cars that stay unused for long periods.

As other reviews have mentioned it comes with a set of adapters that allow you to permanently attach pigtails to the battery posts and then you can quickly connect the tender without having to use the alligator clips (also included).

For the price and free shipping you can't go wrong!

28 of 28 people found the following review helpful:

5.0 out of 5 stars A Doozie, March 6, 2008

By	Hal (Bethesda, Md USA) - See all my reviews

This little gizmo is dynamite.

I have a 4 year old Accord that, due to circumstance, only has about 4400 miles. Rarely driven...and what driving is done is mostly at night.

Sat for a week once in very cold weather...dead battery.

Ordered this. Hooked it up. 100% charge and the battery is very powerful once again.( had thought I would probably need a new one).

It's very small size makes it extremely easy to use and store. And it will not overcharge, so you do not have to babysit the process.

It's LEDs glow red when charging. Green and red blink once 80% has been achieved. Solid green at 100%.

It did, in very cold weather, take a long time to establish a full charge on my almost completely discharged battery. The battery would have been usable in a few hours, but 100% took close to 18.

Highly recommended.

16 of 16 people found the following review helpful:

5.0 out of 5 stars A+ Product, March 4, 2007

By	Glenn M. Soffen (Long Island, NY) - See all my reviews (REAL NAME)

I have an older version of this charger that I bought in the mid 90's. I used it to maintain my garaged Mustang's battery over the winter months for many years. I made a cigarette lighter adapter so all I needed to do was to plug it in instead of using the alligator clips. I have to say this thing is dead reliable! It always kept my battery in prime condition. I love it and recommend it highly.