Location:  Home » Car Care » Battery Tender 021-0128 Battery Tender Plus 12V Battery Charger  

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

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

Other Views:
Brand: Battery Tender
Category: Automotive Parts and Accessories

List Price: $67.95
Buy New: $39.95
as of 7/31/2010 19:12 CDT details
You Save: $28.00 (41%)



New (28)

Seller: BUILDORBUST
Rating: 5.0 out of 5 stars 357 reviews

Color: Black
Media: Misc.
Autographed: No
Memorabilia: No
Shipping Weight (lbs): 20
Dimensions (in): 11 x 4 x 11

MPN: 210128
Model: 021-0128
UPC: 734357001280
EAN: 0734357001280

Availability: Usually ships in 1-2 business days

Customer Reviews:
Showing reviews 6-10 of 357



5 out of 5 stars Get one for every car...   November 9, 2006
J. Deuel (N. CA, Bay Area)
17 out of 18 found this review helpful

...or anything with a 12V battery that isn't driven regularly. I've been using Battery Tenders for years on my motorcycle and airplane-both of which are usually battery-a-year propositions. I now have one for every vehicle but my daily drivers-even my hydraulic dump trailer. It's simple to use:clip on the battery leads, plug it in, and forget about it. You don't worry about a dead battery when you need the vehicle, and you don't have to worry about overcharging, either. If it saves one battery from seasonal replacement, you've paid for the unit a couple of times over. Money well spent.


5 out of 5 stars Saves your battery   January 9, 2007
Al (Maryland)
13 out of 13 found this review helpful

If you have a vehicle that you don't use very often, use the Battery Tender to keep the battery charged. It slow-charges your battery, then maintains the charge. It works great!


5 out of 5 stars 24/ 7 365 days of the year   January 9, 2007
Scott Andrew Cohen (Boston MA)
12 out of 12 found this review helpful

This unit is a workhorse for the money. I use it on my Corvette in the winter and in the summer I have my snowblower attached to the battery tender. This product is compact in size and simple to use. It came with different adapters that enabled use with different battery charging requirements.

I recently gifted a unit to my father in-law who leaves 2 cars in Florida year round.

A must have for anyone who has a vechicle or seasonal piece of equipment.




5 out of 5 stars I get a charge from this   November 1, 2005
D. Liakos (Northeast USA)
21 out of 24 found this review helpful

For ease of use, The Deltran Battery Tender is an excellent way to charge and maintain the battery on your motorcycle, snowmobile, or even a heavy- duty vibrator, not that I would know anything about that! The kit includes a BMW type plug for machines so equipped, and an SAE adaptor with alligator clips. You can also wire the SAE adaptor right to your bike's battery and have easy access to the plug- in. The battery is maintained in a peak state of charge, with no worries of over charging.


5 out of 5 stars An essential accessory for every car owner.   December 28, 2008
Joshua G. Feldman (New York)
9 out of 9 found this review helpful

Most people labor under the misconception that periodically driving their car will keep their battery charged. Unless you are regularly putting up hours on the highway this isn't the case. Average around the town driving doesn't run the alternator enough to charge up the battery fully. This situation is exacerbated if you run the battery down for some reason (like leaving a light on or running the battery while parked with the engine off). When a battery is used for any length of time with less than 75% charge, sulfation begins to take place. Sulfation is where the sulfur in the sulfuric acid which acts as an electrolyte in the battery bonds to the plates permanently, reducing the battery's ability to be recharged and basically killing your battery. There's an easy solution - buy a decent battery charger and be sure to top up your battery's charge any time you run it down - or periodically regularly for any car that doesn't enjoy long trips where the alternator gets to charge the battery for hours at a time.

There isn't a better charger around for the price than the Deltran SuperSmart Battery Tender plus. It's the granddaddy - and it does the job quickly and well for a very good price. It has two indicator LEDs which show 4 status states (Verifying the battery, charging, charging with battery level over 80%, and fully charged - on trickle charge mode). This makes it easy to see what the charger is doing and when your battery is ready to roll. The Deltran SuperSmart is has a robust powder coat painted metal body and a modular plug attachment that allow you to hook up various battery connectors. It comes with two connectors (clips for car and marine batteries and rings for motorcycles).

While a battery charger cannot bring back a battery that has fully sulfated, a good one like this definitely can reverse partial sulfating. It's better to prevent sulfating in the first place - and regular use (i.e. quarterly and after each significant battery run down event) will keep your battery in good shape for as long as possible. It's like dental floss for your car's electrical system.


Showing reviews 6-10 of 357


battery charger  battery tender  batterytender charger battery  car battery charger  motorcycle  

Store Menu
Car Care
Oils & Fluids
Tires & Wheels
Motorcycle & ATV
Tools & Equipment
Paint, Body & Trim
Interior Accessories
Exterior Accessories
Replacement Parts
Performance Parts & Accessories
Our Partner
used cars