Xantrex Technologies 804-0450 High Wattage 40 Amp Battery Charger

Product Details

• Amazon Sales Rank: #13856 in Home Improvement
• Brand: Xantrex
• Model: 804-0450
• Dimensions: 14.00" h x 10.00" w x 8.00" l, 10.00 pounds

Features

• STAX9
• Ideal for recharging SUV, Boat, and car
• 40amp Maximum DC output current
• Built-in short circuit and overcharge protection
• 3 Stage charging technology minimizes recharging time

Customer Reviews

Efficient, powerfull, well made
I have been testing battery chargers and batteries for charging efficiency as a byproduct of marine wind turbine testing I am doing. Of the 5 different chargers I tested, this was by far the most efficient.

It is also very powerful; for just a little more than a standard 15 amp charger, you get 40 amps. The 3 stage charging program significantly speeds charging of large capacity batteries.

I bought 1, used it for several months, and was so impressed, I bought a 2nd one to boost the charging capacity of a very large batter bank.

It is ideal for use as a charger for boat battery banks, either cruising sailboat or for bass boat type trolling motor battery banks.

Very good charger, lots of power, 3 stage
Being a commercial fisherman I've dealt with many charges and this is the best portable one I've ever used. The design quality is excellent but the build quality is only fair since it's made in China, you might get a bad one. I had to take mine apart and reposition the control panel because it was shifted to far up and you couldn't see the indicator lights. Charges a full 40 amps and I've had no problems with it for 6 months. A completely dead battery won't charge until you either zap it for a second with jumper cables or use an old style charger for a few minutes. The 3 charging stages work as described.

Too Smart by half
Works well, but sometimes the smarts are not smart enough. Some times it charges a full or nearly full battery at too high an amperage and you know it shouldn't. You turn if off then back on, and it acts properly. Sometimes it won't charge a battery in bad shape, but a simple & stupid charger will. I'm on my second. The first would go into equilizing mode by itself, though the engineers at Xantrex couldn't see how that was possible! All in all it's a nice device and a worthwhile purchase.