Buy CTEK Multi US 3300 12-Volt Smart Battery Charger

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List Price: $74.99
Sale Price: $67.53
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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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This charger, as well as the current (more popular) Battery Tender chargers are both made in China. This charger seems to be superior to my Battery Tender chargers in that it appears to be well sealed, of a more modern design, spark proof. Enclosed in a two piece cast housing, not an aluminum box. The charging algorithms will bring back a sulphated battery in some cases. It has three different charging settings, and brought my sulphated APC UPS battery back to limited life. It is particularly well suited for small motorcycle size batteries as well as larger batteries. It may be left connected indefinitely.

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My only complaint is the cheap power cord that gets as stiff as a broomstick in extreme cold. . . . . $%##@!! cheap plastic covered power cords, anyway!

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I ordered 2 different chargers to maintain my gate opener's deep cycle battery (a simple 4 output charger with extension cords for charging other deep cycle batteries from amazon Battery Tender 022-0148-DL-WH 12V 4-Bank Battery Management System) and this unit has a far superior charging design.

The 4 bank battery tender does a simple fast rate charge then switches to a trickle charge at a constant voltage with 4 outputs.

This unit pulses the battery under charge and features 3 operating modes with different current outputs for different sized batteries. The selections are motorcycle which also works well for SLA gel cells or AGM batteries, standard automotive starting battery, deep cycle batttery, and off.

What makes the CTEK unit special is that it uses a pulse charge in all modes to attempt to desulphate batteries, while the battery tender does not. This method of charging has proven successful in restoring lead acid batteries that won't take a charge any more.

It comes with a waterproof 12V output cable and a set of clips or rings for permanent installation under the hood of your car. In addition to the LEDs for indicating the type of battery being charged, a second set is provided for empty, 1/2 full, and maintenance pulse charge mode.

There is also a noticable increase in quality between the battery tender and this unit small details like a water sealed housing and gaskets on the connectors indicate quality in manufacture.

For a single 12V lead chemistry battery this is a useful, well made tool.

Honest reviews on CTEK Multi US 3300 12-Volt Smart Battery Charger

This is the best charger ever. I have a lead plugged into my motorcycle, and 2 cars and I rotate it between the 3 of them and they start up like th battery is brand new. This will pay for itself just in not having to buy a new battery. Don't think you'll find something similar at wal mart for half the price. Don't go cheap as this is the best and well worth it.

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On a cold winter morning I wanted to see how my Porsche is doing in the garage. Been sitting there for about two months already, I just got a new battery in there about 6 months ago in the summer. My remote dint open the car, I know you should using the car on regular basis for it to rember the remote, so I opened the door manually. I din't see lights that glow usually on opening the door, I inserted the key and clicked it to start, all the thing I hear is damn silent. This reminded me the situation 6 months ago for me to change the battery. So I read few reviews on battery maintainers, chargers, tenderizers in the porsche forum and I got couple SCHUMACHER branded one's from the walmart....Oh god they never did a thing, I tried each of them for 5 days on my car but nothing happened. Then I did further research and I found some reviews on this CTEK and also came to know that they are the one's behind the OEM Porsche and Ferrari battery chargers. I found the best price here too and place the order. I got delivered one and I wanted to try my luck on this last charger. It just took 5 mins.....yep 5 mins to light up the lights in the car and in the front trunk, bright.....It too 25 mins for the car to start up normal. The outside temp is -19F. I was amazed to see how a branded product makes a difference.

Any one who loves your car, if its seasonal, have no second thought just hit add to cart, you will love it...trust me....