Amazon.com Product Description
When your car battery goes dead, a jump-start is only a quick fix for a problem that might reoccur. The best solution is to recharge the battery, using a product like the Black & Decker Smart Battery Charger.

Fully Automatic Charging
The Smart Battery Charger is fully automatic and electronic, with a Digital Smart microprocessor control and an LED indicator for selecting your charging rate. The three stage automatic rapid charging operates at 6 amps, 4 amps, or 2 amps to build the battery’s charge back up to its correct output.

The Smart Battery Charger features 3-stage technology to recharge nearly any vehicle battery. View larger.

The Smart Battery Charger has a reverse hook-up warning alarm.

Works with Any Vehicle
The Smart Battery Charger is ideal for any 12-volt, lead-acid battery types, including those that power cars, boats, lawn mowers, RVs, ATVs, and more.

State-of-the-Art Technology
It uses a 3-stage automatic high-frequency charging technology to build the battery back up to its normal output level, making it more efficient at charging than conventional model chargers.

Built-in Safety Precautions
The Smart Battery Charger also has a spark-resistant reverse hook-up and overcharge protection circuit built into it to insure that the clamps are not accidentally affixed to the wrong terminals, which would damage the battery. The automatic float mode monitoring tells the unit when the battery is ready to avoid overcharging.

Warranty
Black & Decker offers a full two year warranty on the Smart Battery Charger.
What’s in the box
The Black & Decker Smart Battery Charger unit and heavy-duty cables and clamps.

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Amazon.com Product Description
When your car battery goes dead, a jump-start is only a quick fix for the problem that may reoccur. The solution is to recharge the battery, using a product like the Black & Decker Smart Battery Charger.

Fully Automatic Charging
The Smart Battery Charger is fully automatic and electronic, with a Digital Smart microprocessor control and an LED indicator for selecting your charging rate. The three stage automatic rapid charging operates at 40 amps, 20 amps, 10 amps, and 4 amps, with an average 5 minute engine start time and 4.5 hour full battery charge.

The Smart Battery Charger features 3-stage recharging technology. View larger.

This device also features a reverse hook-up warning alarm.

The LED display lets you know when the battery is fully charged.

Works with Any Vehicle
The Smart Battery Charger is ideal for any 12 volt lead-acid battery types, including those that power cars, boats, lawn mowers, RVs, ATVs and more.

State-of-the-Art Technology
It uses a 3-stage automatic high-frequency charging technology to build the battery back up to its normal output level, making it more efficient at charging than conventional model chargers.

Built-in Safety Precautions
The Smart Battery Charger also has a spark-resistant reverse hook-up and overcharge protection circuit built into it to insure that the clamps are not accidentally affixed to the opposite terminals, which would damage the battery. The automatic float mode monitoring tells the unit when the battery is ready to avoid overcharging.

Warranty
Black & Decker offers a full 2-year warranty.
What’s in the box
The Black & Decker Smart Battery Charger unit and heavy-duty cables and clamps.

——————————————————-

Amazon.com Product Description
When your car battery goes dead, a jump-start is only a quick fix for the problem that may reoccur. The solution is to recharge the battery, using a product like the Black & Decker Smart Battery Charger.

Fully Automatic Charging
The Smart Battery Charger is fully automatic and electronic, with a Digital Smart microprocessor control and an LED indicator for selecting your charging rate. The three stage automatic rapid charging operates at 25 amps, 10 amps, and 2 amps with an average 1 minute engine start time and 2.5 hour full battery charge.

The Smart Battery Charger features 3-stage recharging technology. View larger.

Works with Any Vehicle
The Smart Battery Charger is ideal for any 12-volt lead-acid battery types, including those that power cars, boats, lawn mowers, RVs, ATVs and more.

State-of-the-Art Technology
It uses a 3-stage automatic high-frequency charging technology to build the battery back up to its normal output level, making it more efficient at charging than conventional model chargers.

Built-in Safety Precautions
The Smart Battery Charger also has a spark-resistant reverse hook-up and overcharge protection circuit built into it to insure that the clamps are not accidentally affixed to the opposite terminals, which would damage the battery. The automatic float mode monitoring tells the unit when the battery is ready to avoid overcharging.

Warranty
Black & Decker offers a full 2-year warranty.
What’s in the box
The Black & Decker Smart Battery Charger unit and heavy-duty cables and clamps.

Customer Reviews

Great value for the money
The first thing I noticed about this charger is that it was much smaller than I expected. This is actually a good thing, in my opinion, since it takes up little space and doesn’t actually weigh very much. As another reviewer noticed, the positive and negative battery clamps are not the same as in the photo. The ones in the photo appear to be made of copper and seem to be of higher quality, but that said, the ones that are on the charger are just fine and get the job done.

The charger rates are roughly 10, 6, and 2 amps, but there is definitely variance during the charge (perhaps these rates are averages during that stage.) I noticed on a couple EverStart Marine lead-acid batteries that the initial few hours of charge were at over 12 amps (according to the charger’s LED readout.) This is definitely a plus as it should facilitate faster charging.

Of the 5 batteries that I have charged so far, 1 was a car starter battery, 3 were flooded deep-cycle/marine batteries, and 1 was a glass-mat “solar” type.

The only battery it sort-of had trouble with was the “solar” one. When I initially tried to charge it at the 10-amp rate, the charger reported an “Open Cell” error. So I tried again at the 6-amp rate, same error. Then again at the 2-amp rate and it worked fine and fully charged the battery.

I’m assuming that this “solar” battery is heavily sulphated. I suspect a new glass-mat type battery would work just fine.

The “voltage check” function works fine, but only when the unit is powered. It would seem to me that the volt meter function should be able to work without needing to be plugged in, but this isn’t a big deal.

The only real disappointing feature was the “alternator check”. While it does appear to work, according to the manual, it only works properly when your battery is pretty much fully charged. And let’s face it, one really only needs to check the alternator when it’s discovered that the battery in your car is dead for some unknown reason. There’s probably a good technical/engineering reason for why the alternator check works this way, but it wasn’t explained in the manual.

Performance-wise, it appears to charge fully depleted batteries in 8 hours or less. Half-discharged batteries in considerably less time, naturally.

Normally, I’d say this only deserves 4 stars, but at forty clams, it’s a great value. So I say it’s worth 5 stars.

It’s loud, and sometimes gives false fault codes
The fan is loud, but it usually charges fine. Sometimes it displays a false “open cell” or “shorted cell” fault code. Restarting it usually clears the fault. Also it draws a lot of start-up current when first plugged in (a loud arc / spark from the plug is the result).