Start-Me-Up2 Review

Average Reviews:

(More customer reviews)I tried this after a few months and it didn't work. The phone number on their website (800-372-3815) is disconnected, and they don't answer emails. There are no other numbers available for Startmeup2 or "Automotive Energy Systems".

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SOLAR 1002 1.5 Amp 12 Volt Automatic On-board Battery Charger Review

Average Reviews:

(More customer reviews)For those of us not up-to-date on popular battery charger brands, this item description is very misleading.This is a regular old 12v battery charger that must be plugged into a 110 VAC outlet.It is not a solar powered battery trickle charger/maintainer.

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Product Description:
With on-board charging and automatic operation, this SOLAR battery charger combines supreme convenience and reliable charging power in a lightweight, compact design. Perfect for keeping seasonal use batteries in top condition.

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Duracell D2A 2 AMP 12V Battery Maintainer / Charger Review

Average Reviews:

(More customer reviews)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 2009: I've been using this for over a year 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!

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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.
View larger.

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Shumacher SE-82-6 Dual Rate Manual Battery Charger #SE-82-6 Review

Average Reviews:

(More customer reviews)Darn, my riding mower wouldn't start last week, just as the grass was ready for the year's first mow.I am a single 47 year old woman who knows zilch about machinery.Since the mower wasn't making a peep when I turned the key, I went with "battery is dead".Every month over the winter I started the mower up and ran it for 5 minutes, but guess this last April freeze finally zapped it.I researched chargers and this one sounded the best for the money.Paid for it on 4/10, used supersaver shipping and got it on 4/13!My Troy-Bilt manual says to use a 12-volt charger on 6 amps for one hour.The Schumacher manual says to use this on 2 amps for 3-8 hours for riding mowers, but I went ahead and set it for 6 amps.When I plugged it in, the ammeter (never heard of that word before, but the manual told me the meter was called that) read 3 amps, which supposedly meant the battery was fully charged.Doh!!!But I went ahead and charged it for 1 hour and, Eureka, the mower started up just fine.This charger is so easy to use.I ran an extension cord out to my shed, clipped the red clip to the positive terminal, the black clip to the unpainted rear end of tractor, put the power plug in the extension cord and waited one hour.Can't beat that for simplicity.(I finally noticed I could flip the mower seat up out of the way of the top of the battery - that's how much of a novice I am.)

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Battery Tender 022-0165-DL-WH 12-Volt 2-Bank Battery Management System Review

Average Reviews:

(More customer reviews)The only regret I have is that I didn't buyone of these sooner. It works perfectly!Keeps my boat batteries at 100% and worry free.It is a step up from the one bank model as it is fully electronic and lighter in weight with a high quality plastic case. The original steel case.

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Product Description:
The Deltran Battery Tender 12-volt/1.25-amp 2-Bank Battery Management System is the simple solution to the challenge of keeping multiple vehicle batteries optimally powered when not in use. It is able to charge any two 12-volt lead-acid batteries, including standard and sealed AGM and Gel Cell battery types and is also designed to utilize a 3-step charging program and safely function in a fully automatic mode. Taken together this makes the Battery Tender 12-volt/1.25-amp 2-Bank Battery Management System an excellent means of ensuring that your batteries are fully charged and ready to go when you are.

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Deltran 021-0127 Battery Tender Junior 6-Volt .75 Amp Charger Review

Average Reviews:

(More customer reviews)I have a special interest car that only gets driven in fair weather 10 times a year. The battery was always low. It was a real pain to get the charger out and hook it up (the battery is under the rear seat) every time I wanted to take it out. Those days are over. With one quick disconnect of this little gem I am on my way in minutes rather than hours. Wish I had bought this a long time ago. I highly recommend it if you have similar circumstances.

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Product Description:
The Battery Tender Junior 6-volt/.75-amp battery charger is the small and simple solution to the challenge of keeping 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 small spaces, to utilize a 3-step charging program and safely function in a fully automatic mode. Taken together this makes the Battery Tender Junior 6-volt charger an excellent means of ensuring that your battery is fully charged and ready to go when you are.

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CTEK Multi US 3300 12V Smart Battery Charger Review

Average Reviews:

(More customer reviews)I own two of these excellent chargers - they are very simple to operate and very durable.

The chargers are weatherproof, and you can permanently mount them in the engine compartment with the provided ring terminals, or just use the alligator clips.

The charger has a battery status indicator (low / full), and settings for Motorcycle, Car, or Gel battery. The charger cycles from trickle current, to pulses, and shuts off when the battery is full. There is no better charger for winter storage battery tending, bringing nearly dead batteries back to life, or just recharging boat batteries slowly overnight.

Finally, I should mention that the current version of the 3300 has some improvements over the already excellent older version (I now have one of each). The latest version includes:
- Heavier gauge wiring
- Much heavier and more durable alligator clips
- A nice zip-up storage case

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Product Description:
CTEK Power's Multi US 3300 is a primary switch mode battery charger, with pulse maintenance and is a part of a series of professional battery chargers from CTEK Sweden AB. These chargers represent the latest technology within battery charging. A recent addition to the CTEK family of "the smartest battery chargers in the world," the Multi US 3300 contains three charging modes, and automatically and easily charges all 12V lead-acid batteries, making it perfect for motorcycles, cars, lawn mowers, jet skis and any other vehicle with batteries up to 120Ah.

Four-step Automatic Battery Charging Cycle
There is no need for any specific knowledge of batteries or their charging methods; the Multi US 3300 will take care of it. The Multi US 3300 utilizes a four-step automatic charging cycle. First, patented desulphation functionality allows for possible reconditioning of batteries that have lost significant power due nonuse. This is followed by Bulk Charging, when 80% of charging takes place; then Absorption Charging which completes charging up to virtually 100%; and finally Pulse/Maintenance Charging, in which the battery receives a pulse of electricity when the voltage drops below 95%, keeping the battery in perfect condition indefinitely when it is not used. If the battery is loaded and the battery's terminal voltage drops to 12.9V the charger automatically switches back to the beginning of the four-step cycle. Also, the Multi US 3300 can be connected for months and it is specifically developed for seasonal vehicles.

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Schumacher SEM-1562A 1.5 Amp Speed Charge Maintainer Review

Average Reviews:

(More customer reviews)After having the battery on my "summer only" convertible go
flat last winter I decided to invest in a battery maintainer.
The Schumacher SEM-1652A was the best compromise of price (around
$40 with shipping), features (a normal charging rate, and a
lower maintaining rate, with overcharge protection and indicator
lights), and small size (fits easily under the hood by the
master cylinder, battery wiring adaptor with quick connect makes installation and removal a snap.
I'd add a few extra crimp-on terminals of various ring sizes to the kit,
so different power connections with the wiring adaptor could be made
(my car has the battery mounted in the front fender well, I had to get
larger ring terminals to go on the remote jump starting terminals
under the hood.

Update: I bought a wattmeter to measure the power use of a fridge ( seemed to be running more than
normal, we replaced it with an energy star rated model ) so I hooked up the Schumacher maintainer
to the meter to see what it drew when it was trickle charging / maintaining. Charging was .25 amps or about
30 watts per hour, and maintaining was .11 amps or about 13 watts per hour. Pretty low energy use in my book.

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Product Description:
Schumacher's SEM-1562A low amperage charger is an ideal way to maintain a battery's charge for people who don't use their vehicle everyday, who go short distances, or who do lots of stop-and-go driving. It can also be used to charge small batteries for ATVs, motorcycles, snowmobiles, and lawn tractors, or even for batteries that have a long storage time. In cold climates, they're indispensable for keeping batteries warm overnight and ready for starting.


The SEM-1562A charges both 6-volt and 12-volt batteries. Features
The SEM-1562A maintains both 6-volt and 12-volt batteries, keeping them at full charge using float-mode monitoring. The unit will automatically switch from full-charge to float-mode monitoring when the battery is charged to prevent overcharging. Smart display LEDs indicate whether the unit is in charge, charging, or trouble modes.
Versatile
The SEM-1562A is perfect for charging small batteries, maintaining small and large batteries kept in storage, and batteries for motorcycles, classic cars, TVs, and boats. It's small enough to fit under the hood of your car or truck.
Safe and Effective
The unit has a quick disconnect harness for easy removal. Use the 50 amp clamps to connect to the battery or permanently attach the ring connectors--great for hard to reach motorcycle batteries. It also has a reverse hookup protection in case the clamps are accidentally connected to the wrong terminals.
Warranty
Every Schumacher power source comes with a one-year limited warranty (90 days on battery).

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

Average Reviews:

(More customer reviews)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 hascircuitry 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!

UPDATE after two years of use.
I can now reconfirm that these battery tenders work great - I've had them hooked up continuously on two cars that stay in the garage a lot and I've NEVER had them not start right up. A quick glance at the LED display lets me know that the batteries are either charging or fully charged. It's a real pleasure to be able to go right up and enjoy your wheels without having to worry about whether the battery is dead. I can't say for sure, but I suspect that it lengthens the life of the battery as well.

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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.

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Battery Tender 021-0123 Battery Tender Junior 12V Battery Charger Review

Average Reviews:

(More customer reviews)There are two things you need to consider when purchasing this item.

First, unlike its big brother, the Plus, the Junior is not temperature compensated.To find out more about that, go to batterytender.com, click on the FAQs link on the left and read item #18:"What is Temperature Compensation and how important is it?"

I was concerned about this, as living in the desert as I do, the temperature in my garage is 90 to 130 degrees most of the year and can drop to the 50s in the winter.I inquired about this to Battery Tender support and received this answer:"The Junior is not a temperature compensating unit, however, when the temperature is hotter, the unit will actually charge the battery a bit faster and it will not harm the battery."I don't know what to make of this, especially since compensation is so important according to their FAQ.

The other is to make sure you get the 4-step Junior which replaced the 3-step over a year and a half ago.On the back side of the packaging on the left side look for the reference to "Complete 4-step."

That being said, I've been using a Junior for almost 6 months on my motorcycle so I can't post up my experience as well as others here.I'm hoping it will provide my batteries with more service than the 14-16 months I'm used to.

By popular acclaim and editorial content, the Junior and the Plus have garnered untarnished reputations and withstood the test of time.For maintaining your battery, there really isn't anything else out there.

Click Here to see more reviews about: Battery Tender 021-0123 Battery Tender Junior 12V Battery Charger

Product Description:
The Battery Tender Junior 12-volt/75-amp battery charger is the small and simple solution to the challenge of keeping 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 small spaces, to utilize a 4-step charging program and safely function in a fully automatic mode. Taken together this makes the Battery Tender Junior 12-volt charger an excellent means of ensuring that your battery is fully charged and ready to go when you are.

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Schumacher SC-300A Speedcharge Charger/Maintainer Review

Average Reviews:

(More customer reviews)I got this for the same reason anyone would want a charger/maintainer... and that is to charge a battery and keep it there. I have a classic British sports car that I rarely drive, and until I started using this charger I would return to my car to a dead battery. This charger/maintainer comes with everything you need to quickly connect and disconnect this item, in 3 different ways: eye hole connectors to permanently attach the quick connector to your battery for very easy use, large alligator type clips for temporary use on a car that you want to just charge the battery on, and for super easy use there is a plug for use in the 12volt power outlet or cigar lighter. It has power sensing, so you cant over charge, and it will maintain the proper voltage for as long as it is connected. The wires are long enough from the charger itself to stretch across any car, and the power cable is about 8 feet long. Great little charger/maintainer. I would recommend this to anyone.

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Product Description:
This speedcharge charger is fully automatic, compact, and has a quick harness with 3 connectors. It provides a 3-amp trickle for 12-volt batteries and also features a reverse hook up protection so as not to charge the battery until it is hooked up to the correct posts.It is ideal for small motorcycle, ATV, snowmobile, and lawn tractor batteries.

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