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Battery Tender Waterproof Jr. Motorcycle Battery Charger | 
| Brand: Battery Tender
Category: Automotive Parts and Accessories
Buy New: $36.95 - $59.58
as of 9/8/2010 09:54 CDT details
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Rating: 74 reviews
Sales Rank: 112
Color: Black
MPN: 022-0150-DL-WH-AMA-A
ASIN: B001A3JLLU
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| Features:
| • | 100% waterproof | | • | 12v-800mA "Super Smart" technology | | • | Spark proof, short circuit protection, reverse polarity protected | | • | Designed for use on all AGM sealed maintenance free, lead calcium, and flooded batteries | | • | 3-year manufacturers warranty |
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| Editorial Reviews:
Product Description
- 12V-800mA charger is 100% waterproof, lightweight and compact
- Three-step constant current charge program with SuperSmart technology
- Spark-proof
- Short circuit and reverse polarity protected
- Weighs just 1 lb.
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| Customer Reviews:
Showing reviews 1-5 of 74
Heavy-Duty Waterproof Charger, a little slow but very effective October 4, 2008
Charlie (Michigan USA)
56 out of 58 found this review helpful
Deltran Battery Tender 12-Volt 800 milliamp Waterproof Battery Charger
The Battery Tender Waterproof Tender operates in essentially 3 stages. It first initiates an absorption charge that attempts to charge your battery to 14.5 VDC at up to 0.8A (or 800mA). This bit of information was not readily advertised, so I was concerned when I heard my battery making gurgling noises while the LED was "amber" for the past 8 hours. This battery was only 2 years old with less than 5000 miles and had been maintained since day 1, so I was sure it wasn't a problem with the battery. It turns out that it was nothing to be concerned about since this charger was designed to be used for long-term storage of batteries.
My previous charger, a Black & Decker / Vector 2A "smart" automatic maintainer tried to keep my battery voltage at 14.75 VDC at 2A for over 24 hours. Needless to say, I was concerned when I saw this happening with a brand new Battery Tender. I dug around on their website and discovered a PDF that indicated the Tender would try to reach 14.5 VDC for the absorption phase, at which point it would switch to a trickling charge and finally the maintenance charge. I logged all of the readings and confirmed that once the battery reached 14.4-14.5 VDC, it would start to trickle down finally remaining at about 13.12-13.22 VDC @ 20-100 mA. A modern car's parasitic draw is about 10-50 mA, so the maintenance charge is to compensate for the parasitic draw and for self-discharging of the battery. I discovered the Tender does a much better job at a maintenance charge because I have yet to see the Tender go into the Amber-LED mode, whereas my Vector/B&D occasionally switches back and forth even on a fully charged battery. I logged some data from the Vector/B&D and discovered that once the LED is green, it provides NO current to the battery. In essence, the Vector/B&D just shuts off once it reaches 14.5 VDC - which is not as useful as providing an actual maintenance charge. The Battery Tender wins. Quite a few people have commented that their Sears "smart/automatic" maintainer and other brands constantly switch between the Green and Amber modes. I suspect those chargers are doing the same thing as the Vector/B&D. They just shut off when the battery is "charged", which is not very good for the battery. It needs to hold a maintenance charge to prevent sulfation.
The Tender Waterproof is fully encapsulated with a thermally conductive potting material. This makes the unit quite heavy for such a small device. It uses a quick-disconnect 2-terminal fitting that is commonly used for battery chargers/maintainers. It comes with ring terminals or large battery clamps all fused with a 7.5A ATC fuse. I made my own wiring harness with smaller alligator clips since I don't have room under the hood for large clamps, and I do not want to permanently install a set of ring terminals that can short out or cause other problems in the long-run.
Pros: Battery Tender has an excellent reputation for making reliable chargers. The Waterproof unit is quite durable and is insulated from shock, water, corrosion, extreme temperatures and other environmental variables.
Cons: At 800mA max current capacity, this charger will work rather slowly for 50Ah or larger capacity batteries, so expect 10-12 hours upon hooking it up to a battery before the LED turns green. The benefit of this is that it prevents boiling the battery or generating a lot of heat due to excessive current.
Overall: If you're using the charger in an environment subject to cold or hot temperature swings with plenty of moisture, such as in a detached garage for your motorcycle, boat, stored vehicle, or even a daily driver, I highly recommend the Waterproof unit over the Tender Jr or Tender Plus.
UPDATE:
I decided to purchase an additional Battery Tender Waterproof because I needed another charger for my daily driver and because I experienced no problems with the first unit.
Nice Unit November 29, 2007
Michael L. Wilson
20 out of 20 found this review helpful
I have been using battery tenders for a while now, but needed one that could be placed on outside vehicles without worrying about precipitation. This one was perfect. It's a simple little device - if you can plug a cord in and connect like colored clips - it's all you need.
The construction seems even hardier than I anticipated - it seems very rugged. It has rained and snowed on it already with no issues. My biggest pet peeve is dead batteries, and battery tenders have worked great for me! My Harley battery is 5 years old and still functions like new.
I highly recommend you pick one up if you have a battery that sits idle for more than a few days at a time.
Error in Amazon listing: 800 mAmp, not 800 amp January 2, 2008
Robert Mohns
14 out of 17 found this review helpful
The Amazon title says this is an 800 Amp charger (which is a bit ludicrous -- most houses are only set to handle 60-150 amps). This device is actually an 800 milliamp charger, or 0.8 amps. This places it as comparable to the 0.75 amp Deltran Battery Tender Junior.
The package includes high quality adapter cables, including both traditional claw-style clips (useful for charging/maintaining a stand alone battery) and o-rings to screw onto a battery for direct hookup while still installed in a vehicle. This latter option makes it supremely useful for maintaining a motorcycle over the winter, even outdoors.
Deltran's "Battery Tender" brand series of trickle chargers are excellent quality. The Waterproof model maintains the high standard.
Sleep good at night!! February 8, 2008
William C. Lehman (Ohio)
8 out of 9 found this review helpful
I have three of these. In the northern Ohio winters where temps can sometime go down to single degrees at night, I know the truck will start in the morning. I keep one on the generator and tractor for battery maintenance during storage. They work perfectly.
Have 2, work great, no worries about being outside. December 26, 2007
G. Stanis (Clarksburg, MD)
5 out of 5 found this review helpful
I have 2 of these now, and they work great. I have them hooked up outside, and I dont have to worry about bringing them in. Light indicators on the chargers seem to be accurate. I have never had any problems with this product. Plus the kit come with clip or permanent attachment setup. Nice product!!
Showing reviews 1-5 of 74
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