Duracell D2A 2 AMP 12V Battery Maintainer / Charger

by Duracell

Product Features

• Maintains and extends the life of a battery in your ATV, snowmobile, motorcycle, car or truck
• 2-amp constant DC output current
• Micro-processor controlled three-stage charging extends battery life
• Easy battery connection via: clip leads, DC lighter plug and ring terminals
• Plug and play charging solution; requires no installation or setup

Product Details

• Product Dimensions: 5.5 x 3.3 x 2.5 inches ; 15.8 ounces
• Shipping Weight: 1.6 pounds (View shipping rates and policies)
• Shipping: This item is also available for shipping to select countries outside the U.S.
• ASIN: B000U0JCPO
• Item model number: 804-0027-07
• Average Customer Review: 4.5 out of 5 stars  See all reviews (44 customer reviews)
• Amazon Best Sellers Rank: #968 in Automotive (See Top 100 in Automotive)
  • #14 in Automotive > Motorcycle & ATV > Parts > Electrical > Batteries

Product Description

Amazon.com Product Description

The Duracell 2 AMP Battery Maintainer is ideal for keeping inactive batteries (such as those in an extra vehicle, boat or RV) charged up and ready for instant response by providing safe, steady maintenance charging between uses. It's built to withstand thousands of charging cycles and can stay safely connected for long periods of time without overcharging your battery. It is portable, lightweight, easy-to-use, and includes an accessory package to suit most types of battery connections. The Maintainer connects quickly to your battery via easy-to-use clip plugs, DC lighter plug or ring terminals to provide a complete charge of all internal cells.

Rapid charge technology for faster, more accurate charging.
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Rapid Charge Technology for Faster Charging

The Duracell 2 AMP Battery Maintainer is part of a family of ultra-compact, light weight and modern power inverters and chargers from Battery-Biz Inc. The Duracell line of Battery Chargers features rapid charge technology for faster, more accurate charging, and do not require installation or set up. The simple plug-and-charge solution makes these chargers ideal for extending and recharging all types of 12-volt lead acid batteries. The three stage charging process ensures the battery is always fully charged, but never overcharged.

Duracell Battery Chargers utilize a microprocessor-controlled three-stage charging method which significantly extends the battery life. Multistage charging ensures that batteries receive optimum charging with minimal wear and tear by regulating the voltage and current delivered to the batteries in three automatic stages: Bulk, Absorption and Float. The bulk charging stage replaces 70-80% of the battery's state of charge at the fastest possible rate. After that the absorption charging stage replenishes the remaining 20-30% of charge, bringing the battery to a full charge at a slow, safe rate. Finally, at the float charging stage, the voltage is reduced and held constant in order to prevent damage and keep batteries at full charge.

Complete, continuous charging in three stages that is safe for your batteries.
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Key Features

• Extends the life of 12-volt batteries in ATVs, snowmobiles, motorcycles, cars, trucks and is ideal for deep-cycle RV and boat batteries
• Ensures that your vehicle battery will always be charged up and ready for use
• Micro-processor controlled three-stage charging provides a truly complete battery charge and extends battery life:
  • Stage 1: Initial Charge - provides the bulk of the battery's power
  • Stage 2: Absorption Charge - ensures a full charge of all of the battery's cells
  • Stage 3: Float Charge: Steady "maintenance" charge prevents the gradual loss of power that occurs in occasionally-used batteries
• Can stay safely connected to your battery indefinitely for maintenance charging
• Three types of connectors provided with the unit allow easy connection and charging via clip leads, DC lighter plug or direct-connect ring terminals
• "Plug and play" charging solution; requires no installation or setup
• 2-amp constant DC output current

What's in the Box

Duracell 2 Amp Battery Maintainer, battery clip adapter, lighter plug adapter, ring (eyelet) terminal adapter and English/Spanish user guide.

1-Year Limited Warranty

The Duracell 2 Amp Battery Maintainer carries a one-year limited warranty against defects in material and workmanship under normal use and service for one year from the original date of purchase.

Duracell Jump-start and Powerpack Model Specification Comparison

The most trusted name in portable power solutions, Duracell's product line of battery chargers and maintainers offer something for every consumer need. Check out the specs for the Duracell 2 Amp Battery Maintainer and simliar products from Duracell below:

	Duracell 2 Amp Battery Maintainer	Duracell 6 Amp Battery Charger	Duracell 12 Amp Battery Charger	Duracell 15 Amp Battery Charger	Duracell 25 Amp Battery Charger
Output current	2 A	2 / 4 / 6 A	2 / 6 / 12 A	2 / 8 / 15 A	2 / 6 / 12 / 25 A
Output voltage (nominal)	14.4 Vdc	12 Vdc	12 Vdc	14.4 Vdc	14.4 Vdc
Float voltage (no load)	13.0 Vdc	13.5 Vdc	13.5 Vdc	13.5 Vdc	13.5 Vdc
Reconditioning (Equalizing)** voltage				15.6 Vdc / 2 A
AC input voltage	115 V, 50/60 Hz	120 Vac, 60 Hz	120 Vac, 60 Hz	115 V, 50/60 Hz	120 Vac, 60 Hz
Recommended battery type	12 V (AGM, gel, flooded lead-acid)	12 V (AGM, gel, flooded lead-acid)	12 V (AGM, gel, flooded lead-acid)	12 V (AGM, gel, flooded lead-acid)	12 V (AGM, gel, flooded lead-acid)
Recommended battery size	6 - 50 Ah	6 - 60 Ah	6 - 120 Ah	6 - 50 Ah	6 - 400 Ah
Charging type*	Three-stage	Three-stage	Three-stage	Three-stage	Three-stage
Three-stage	80%	70%	70%	80%	70%
Extras	Mounting holes for permanent installation, ring (eyelet) terminals	Convenient carrying case for storage	Convenient carrying case for storage	Storage compartment for cables	Convenient carrying case for storage

Specifications are subject to change without notice

* Three-stage charging
Multistage charging ensures that batteries recieve optimum charging, but with minimal wear and tear regulating the voltage and current delivered to the batteries in three automatic stages:

• Bulk - Replaces 70-80% of the battery's state of charge at the fastest possible rate.
• Absorption - Replenishes the remaining 20-30% of charge, bringing the battery to a full charge at a slow, safe rate.
• Float - Voltage is reduced and held constant in order to prevent damage and to keep batteries at a full charge.

** Reconditioning
Battery reconditioning is a deliberate overcharge designed to return all cell to optimum condition condition by reducing sulphation and stratification in the bettery. The overcharge helps the battery to reach and maintain peak capacity by equalizing the chemistry in the individual battery cells.

Product Description

The Duracell 2 Amp Battery Maintainer is ideal for maintaining and extending the life of your vehicle's battery. It will keep your ATV, snowmobile, motorcycle, personal watercraft, lawn tractor, car or truck batteries charged when not in use, so they start when you need them. The Duracell 2 Amp Battery Maintainer is portable, lightweight, easy-to-use, and includes an accessory package to suit most types of battery connections. It has a 2-amp constant DC output current and a voltage range of 90-132 volt and 50/60 Hz.

Customer Reviews

Most Helpful Customer Reviews

66 of 67 people found the following review helpful:

5.0 out of 5 stars Seems like a good long-term maintenance charger, October 29, 2008

By 

Graham (Palo Alto, CA) - See all my reviews

Amazon Verified Purchase

This review is from: Duracell D2A 2 AMP 12V Battery Maintainer / Charger (Misc.)

I wanted a charger to keep my car battery charged (but not overcharged!) while I am absent on multi-week trips. So far the Duracell 2 Amp charger seems to be working well.

It is a three-stage charger. The specification says that depending on the current state of the battery, it will do a fast charge to around 80%, then a slower charge to almost full, then finally move to a lower voltage "floating" charge to keep the battery near 100% without overcharging.

I used a multimeter to watch the charging process. My battery was mostly full to start with, so the charger started charging at 14.1 volts (the slow charge mode) and then after a few hours moved to 12.7 volts (for the floating charge). These both seem appropriate voltages. In particular, the floating voltage of 12.7 volts should be safe for long-term battery maintenance.

After about two days on floating charge, my charger's red charging light finally went off. Over the next couple of weeks, when I checked the charger, the red charging light was mostly off but I occasionally noticed it on. It looks like the charger is moving between off and floating charge as needed for sustained maintenance.

I'll have to see how the charger holds up under long-term use, but so far everything looks good.

Update November 2010: I've been using this for two years now and I continue to be very happy with it. It's pleasant to come back from a four week absence to a fully charged car battery, with zero hassles!

15 of 16 people found the following review helpful:

5.0 out of 5 stars Solid Machine, August 25, 2009

By 

SMN "SMN" (USA) - See all my reviews

This review is from: Duracell D2A 2 AMP 12V Battery Maintainer / Charger (Misc.)

I use this with my classic motorcycles and it's taken a beating. Gotten soaked and dried out. Fallen to the concrete floor on numerous occasions, and it's still running like a swiss watch.

All the connectors are great too.

13 of 14 people found the following review helpful:

5.0 out of 5 stars Great Product!! DOES WHAT IT STATES!!, January 18, 2009

By 

E. Cantu "ecantu" (Muscatine IA) - See all my reviews
(REAL NAME)   

This review is from: Duracell D2A 2 AMP 12V Battery Maintainer / Charger (Misc.)

This product is great!! It also has a low price.

I bought this for the cold winters here in Iowa. I have older cars they are 96, 92, 01. I just connect them through the lighter option connection and switch them every day.

My cars always start now. No problems at all.

This charger/maintainer is perfect for older cars that tend to lose their charges during cold sub zero cold nights.

Would highly recommend!!!