In the past I've left my charger on for weeks at a time but I've found that even with whatever technology they incorporate in the dual pros it still has a tendency to overcharge and evaporate out my batteries. Also, the darn thing sits there and hums and remains warm all the time. I have since switched over to a electric timer switch so I can control how often it turns on and off. Kinda suck to have to do that but its the only reliable way I've found.

Anyone else experience the dual pro chargers running all the time and over charging? Maybe I have a bad one.

Thanks

Walleyefisher

Their chargers do charge is like four stages and the last one is like almost 15 volts. The charger should not buzz and you notice it will do it only on certain stages but when the batteries are fully charge it will buzz and that is not right. Call the factory and talk to a tech and he will explain the operation of the charger.

I had a 3 bank Dual Pro in my 2006 Ranger and it was doing the same thing. Ranger replaced it under warranty.

Bob

I recently bought a 3 bank Dual Pro and I've found it to be an awesome charger. A lot better than my Guest... If I leave the charger plugged in for an extended time (green lights on, indicating they are all fully charged) the charger does remain slightly warm and there is a slight "hum" sound, if I listen very closely. It's a charger, it's monitoring the batteries at all times and charging when needed. It's going to get warm. My Guest charger did that too when it worked properly.

I have a 2 year old dualpro 3 bank 45 amp charger, it does run warm and has a slight hum, I have not had any problems with cooking batteries, I use it on three 8D' s, 2 for engine and 1 house that is always being used, the engine batteries get little use and always show green and no water use, the house goes thru all the cycles and also shows no exsessive water use. However the case of the charger is developing cracks all over including fogging and cracking of the led windows. It is mounted inside the engine space on a diesel powered trawler. I have talked to tech support and they agreed to repair it when I send it in at the end of the season but I don't know if I want to reinstall it and have to go thru this again. Has anyone else seen this problem?

I owned me one of the Sportsmans Series 4 bankers. It was AWESOME! Every mornin I had 4 green lights stareing back at me, and every day I could stay out 'til the wife got mad! Dualpro just came out with a PRO SERIES 4 banker that tops it all! Four 15 amp charging banks! It's a monster sized addition, so you better make sure you have room on your boat. But call their tech support. They are real people that actually talk you like a real person! Maybe they can work out some kind of a trade-in discount! GET THAT PRO SERIES 4 BANKER!

fred

If your charger case is cracked and full of moisture, then you have a serious problem.

They do warranty the chargers to be waterproof and sealed- so I would also recommend calling them to see if they will take care of this issue. Dual Pro chargers truely are the most rugged on the market and I would say that this is an unusual problem... My chargers get the he11 beat out of them on the rough canadian logging roads and I have never seen an issue like this..... Though, I am running a smaller charger than you- a Dual Pro Xtreme Sportsman Series...