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Battery Tender 021-0128 Battery Tender Plus 12V Battery Charger
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Features:- Solid state two color LED indicates stage of charger; a quick connect harness for use in hard to reach areas
- Perfect for all lead-acid, flooded or sealed maintenance free batteries (AGM and gel cell)
- Complete 4-step charging program (initialization, bulk charge, absorption mode and float mode) that maintains batteries at full charge without overcharging via its 4-step charging system
- Automatically switches to float/maintenance mode voltage after fully charging the battery
- Temperature compensated to ensure optimum charge voltage according to ambient temperature, and spark proof and reverse polarity protected; 10-year limited warranty
Binding: Misc.
Brand: Battery Tender
Color: Black
EAN: 0734357001280
Item Dimensions: 110011002000400
Label: Battery Tender
Manufacturer: Battery Tender
Model: 021-0128
MPN: 210128
Publisher: Battery Tender
Release Date: December 01, 2006
Studio: Battery Tender
Editorial Review:
Amazon.com Product Description:
The Battery Tender Plus 12-volt/1.25-amp Battery Charger is the convenient solution to the challenge of keeping 12-volt vehicle batteries optimally powered when not in use. It is able to charge any lead-acid battery--including standard and sealed AGM and Gel Cell battery types and is also designed to be easy to use in difficult spaces, to utilize a 4-step charging program and safely function in a fully automatic mode. Taken together this makes the Battery Tender Plus 12-volt/1.25-amp Battery Charger an excellent means of ensuring that your battery is fully charged and ready to go when you are.
4-step charging with automatic float mode.
View larger. | The 4-step charge cycle detailed.
View larger. | Safe, 4-step Battery Charging
The Battery Tender Plus 12-volt/1.25-amp Battery Charger is much more than a trickle charger. Powered by BTP microprocessor technology, it has a "brain". Utilizing a 4-step charging program (initialization, bulk charge, absorption mode and float mode), it allows you to simply connect the charger to a battery, either in or out of a vehicle, and forget about it until you are ready to put the battery to work. Like all Battery Tender chargers, at the end of the regular charger cycle the it automatically switches its output voltage to a safe, storage or float level that eliminates the need to worry about the damaging effects of overcharging, and the resulting need to check on the condition of the battery. If or when the battery voltage drops too far under load, output power resumes and the charging cycle begins again. The unit also features sparkproof connectors, short circuit and reverse polarity protection, an easy to understand charging status LED indicator, a quick connect harness for use in hard to reach areas and almost no current draw from batteries connected to.
Key Features:
- Perfect for all lead-acid, flooded or sealed maintenance free batteries (AGM and gel cell).
- Complete 4-step charging program (initialization, bulk charge, absorption mode and float mode).
- Automatically switches to float / maintenance voltage after fully charging the battery.
- If the battery voltage drops too far under load, full charger output power resumes.
- Temperature compensated to ensure optimum charge voltage according to ambient temperature.
- Solid state two color LED indicates stage of charger.
- Spark proof and reverse polarity protected.
- Includes quick connect harness for use in hard to reach areas.
- 10 year warranty.
| Charger Models | Output Voltage | Output Current | Charging Software*/
Battery Type | AC Voltage/
Frequency Input | | (Volts) | (Amps) | | Battery Tender Junior 6V Battery Charger | 6V | 0.750A | 3 Step STD & AGM | 120 VAC, 60 Hz | | Battery Tender Junior 12V Battery Charger | 12V | 0.750A | 4 Step STD & AGM | 120 VAC, 60 Hz | | Waterproof 800 12V Battery Charger | 12V | 0.800A | 3 Step STD & AGM | 100 to 240 VAC, 50/60 Hz | | Battery Tender Plus 6V Battery Charger | 6V | 1.25A | 4 Step STD & AGM | 120 VAC, 60 Hz | | Battery Tender Plus 12V Battery Charger | 12V | 1.25A | 4 Step STD & AGM | 120 VAC, 60 Hz | | Battery Tender Plus 12V Battery Charger (Gel Cell) | 12V | 1.25A | 4 Step STD & AGM or GEL | 120 VAC, 60 Hz | | Battery Tender Twin 800 12V Dual Battery Charger | 12V | 0.800A | 3 Step STD & AGM | 100 to 240 VAC, 50/60 Hz | | Battery Tender 12V 2-Bank Battery Management System | 12V | 1.25A | 3 Step STD & AGM | 100 to 240 VAC, 50/60 Hz | | Battery Tender 12V 4-Bank Battery Management System | 12V | 1.25A | 4 Step STD & AGM | 100 to 240 VAC, 50/60 Hz | | Battery Tender 12V 5-Bank Battery Management System | 12V | 2.0A | 4 Step STD & AGM | 120 VAC, 60 Hz | | Battery Tender 12V 10-Bank Battery Management System | 12V | 2.0A | 4 Step STD & AGM | 120 VAC, 60 Hz | | *Note: All Deltran battery chargers will charge all types of lead acid batteries: either flooded (standard STD), sealed maintenance free Absorbed Glass Mat (AGM), or sealed maintenance free gelled electrolyte (GEL) batteries. However, for optimum battery performance in deep cycle applications (for example, running a trolling motor), it is best to chose the Deltran charger that has the charging software specifically designed for the battery type. Fortunately, since the technical staff at Deltran has developed charging software that works equally well for both STD & AGM batteries, the only choice to be made is between 2 models: either STD & AGM or GEL software. |
10-Year Limited Warranty
Deltran provides a limited 10-year warranty on its Battery Tender Plus 12-volt/1.25-amp Battery Charger to the original purchaser based on defective material or workmanship. Warranty is void in cases of product misuse, disassembly or modification. Other details regarding warranty limitations and procedures are contained in the Deltran Battery Tender Charger's general limited warranty information sheet enclosed with this product.
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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.
Average Rating: 
Rating: -
I have one Battery Tender Plus and love it, No problems with it. Works Great on the quads and motorcycle, Also put it on my electric start generator. I make a habit of every month to swap it from one unit to the other for a couple of days.Till fully charged. All batteries keep at full charge. Also put it on my pick up and jeep when i don't drive them much.Also i charge the battery in the trailer. I guess i am to cheap to buy another. But this way i look at the batteries and check.The pick up and ... Read More
Rating: -
I have had this charger for just over a month and have to say it does what it's suppose to do, Charge batteries unattended. I have not left it on for more than a day so I can't say how it will perform over the winter. I have four batteries that I will be charging all winter so I will be switching the charger to each battery not leaving it on just one all the time. Not sure if I really needed this more expensive one but I am happy so far.
Rating: -
What can I say, the Battery Tender is small, works well and is easy to use.
Rating: -
I've tried a few other battery chargers/maintainers and this one is by far the best of the lot. I use mine with the optional cigarette lighter adapter and it works like a charm. My car's battery was completely dead and this baby brought it back to life in less than 24 hours. Now I just plug it in and leave it with no concerns about overcharging or damage to the battery. Great product.
Rating: -
I bought this to keep the battery on my pop up trailer charged. My battery was pretty well
charged the first time I used it and was totally charged in less than a day. I inadvertently left
the fridge on battery mode, and when I noticed it after getting home from a 3 day camping
trip, it was completely drained. Even the little warning light inside which takes very
little power was out. I was afraid the battery tender may not be up to the task, but I plugged
in in anyway, ... Read More
Battery Tender 021-0128 Battery Tender Plus 12V Battery Charger Automotive
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