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The Battery Tender 4 Bank Battery Charger is capable of charging four 12-volt batteries at 1.25 amps simultaneously. The unit’s constant current charging is controlled by a microprocessor to prevent overcharging damage caused by trickle chargers. You can use this battery charger with AGM, sealed maintenance free and flooded batteries. You can charge and maintain the batteries of motorcycles, ATVs, jet skis, lawn mowers, and dirt bikes. The unit is capable of maintaining battery charge at the ideal storage voltage for cars, SUVs, pickup trucks, and boats. A 72-hour safety timer shutoff protects your batteries from overcharging. For further safety, the battery charger is spark proof and is equipped with reverse polarity protection. Includes alligator clips and 2 ring terminals for connection. The Battery Tender 4 Bank Battery Charger weighs less than 4 pounds and is designed to charge and maintain your batteries wherever you go.
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Sweengolly
2025-08-15 16:26:24
I needed this to maintain a bunch of batteries although I have a few Battery Tenders already. I use them because experience shows me they work and Deltran always stood behind their product when one went south on me while under warranty. This year I took home the 3 boat batteries which were added to the two waverunner batteries and the motorcycle and the summer car. This unit took care of the boat and the summer car and they work great as long as you buy the available entension lines so you can get them all out of your way and into the corners of the garage where you won't trip over everything. One plug for 4 independent units is nice. Easily worth the price if you need to regularly maintain 4 batteries and don't appreciate turning the ignition on next season and only getting silence or that weird clicking sound. This is particularly painful on a boat when you're "ready to go". Jump starting is not an option and what a hassle on the water - rutting around inside the bilge area. Just turn it on and leave it alone. The internal programming takes care of all the rest.TRUE STORY:I used my firt Battery Tender on my 1999 Porsche since new and only this year replaced the battery while having service performed and told it wasn't properly holding the charge - after 13 years. That made me a believer for life. Never have I had a battery last me anywhere close to that - not even half that. New Porsche batteries are $200 +/- installed. I will say that I did check cell fluid level annually and topped off with distilld H2O since it was a non-sealed battery from Germay (Varta?). That is all.Yes it will pay for itself, and eliminate frustration and save money if you use it religiously and I got religion a ways back.Thanks Deltran!!!
zakleerite
2025-08-05 15:31:44
This four gang charge is more expensive than buying four separate chargers, so I balked at first. but it is better than having a tangle of outlets adapters, extension cords, etc. It did clean up the look of that area of my shop, and (with extension cables) made it more convenient to keep two dirt bikes and two street bikes charged and ready. As most every other reviewer says, you need the extension cables. They are standard SAE to SAE extension cables. I bought a 4-pack of 12 footers and that length works great for me. I do have a corner of my shop dedicated to motor toys, and park my bikes close to each other, so this works, with plenty of wiggle room. For my setup, I wouldn't need anything longer than that.Right now, the unit sits on the seat of one of the dirt bikes. Might make a shelf for it one day above or below the outlet.
Cara Bocian
2025-07-28 10:33:02
I use this on 4 of my batteries that I store for the winter months for my boats and cars that are not in use.
Tyler C.
2025-07-09 13:22:40
I bought this for our camp. Since we don't live there I pull the boat and jet skis out of the water when we are not there. And since they would sit for long periods of time I was constantly replacing batteries. I have had to buy a battery since buying the battery tender. Very easy to use and install and was made out of quality materials. Slowly charges then batteries but most times will have them back to fill charge withi a night. Unlike typical battery chargers this thing weighs practically nothing and is easy to move around. Definitely worth the value!
KG
2025-06-18 18:26:46
I could see two or $300 for a 10 bank but a four bank come on. Good function so far just think it’s a little overpriced
Philip
2025-05-13 12:21:07
Reliable long term performance in a compact unit covering a number of batteries in a storage area
Meow
2025-05-03 14:41:03
Working great
Bogetti
2025-05-01 15:14:21
I have some older vehicles that I don’t drive regularly. When I do want to drive one I usually have to charge the battery and that’s not good for the battery either. With the slow trickle charger and it’s four connections I can keep all batteries on charge at all times. Ready to start.
Mackenzie
2025-03-19 10:09:38
Great multi port charging station! I use it to charge my fishing boat batteries all at once and works great! Just hook it up, and walk away, highly recommend this unit if in need of a multi port charging station.
Raymond Compton
2025-03-12 10:11:32
This 4 bank charger is awesome. I also ordered extension cables so all 3 harley batteries are charging and my seadoo battery.
Customer
2025-01-20 09:39:54
I have a boat, a side by side and two ride on lawn tractors. Four batteries being taken care of at the same time without having cords everywhere. Great charger and battery maintenance unit for multiple batteries all at the same time
Tori
2024-12-18 12:41:36
It does come with 4 connectors that are bout 6 ft in length. This was not clear in the description so it does come complete and ready to use. Great product
Customer
2024-12-16 16:00:03
I'm very happy with this product. I use this for winter storage at the lake. I don't have to worry about the unit resetting if the power goes out.
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