Pulse Tech X2 Xtreme Charge 2- Station Battery Maintenance System XC2

• 2 fully independent internal power supplies
• Input: 100-250V AC
• Maximum charge: 2.5A (5.0 effective) per channel
• Maximum power: 37 Watts per channel
• Bulk charge voltage: 14.8V per channel

i have 4 wheelers tractors tillers and all kinds of equipment that are used only part of the year the batteries constantly go bad from non use or not being charged enough i purchased this charger and it repaired 3 bad batteries and is currently charging the rest of the the only problem i wish i would have solved is finding enough money to buy the charger like this one that will do 12 batteries at a time it works and its great to leave on the equipment while its sitting no more dead batteries here and no more having to buy new batteries

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I have tried a variety of chargers. This is one of the best around. I have three of these chargers in various locations. I hook up all my vehicles and spare batteries when not driving to keep the batteries at optimum condition. (One should always keep Lead-acid type batteries in a fully charged state, and never fully discharge them.)

I also used this to bring some of my older batteries back to life. For example, one of the older batteries would only register 12.6V when charged with a conventional charger, and quickly settled to 12.1 V at rest. After 4 days of pulsing, the battery is at 13.2V fully charged state, and 12.8V at rest. This battery can be used to help neighbors jump start cars, and it runs some 12V devices effectively during power outages.

Warning: Do not connect this to a bad battery that has a short. The battery will draw current at a high rate from the charger, and the charger gets very hot. Although I caught it in time, it may overheat and damage the charger. Always monitor the charger for a few hours when hooking up to an old battery, to watch for over-heating. Or test to determine that the battery does not have a short before hooking up.

I am also using this to try and maximize the life of the newer AGM batteries. We'll see how that goes.

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Sell provided fast shipping and communication when I emailed them. I needed to replace my original single xtreme maintainer because I now need a dual system. Just wished I had looked into the future and ordered a dual before. If you need a single charger I would recommend buying a dual system instead of a single. I have no issues of either maintainer.

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i bought this because i read a review of the single output version of this battery charger on back in 2007. for 5 years, i was very skeptical about the claims the manufacturer made about their technology being able to improve the condition of a battery. i was even more weary of paying the price for one when yuasa branded chargers and deltran battery tenders could be had for a fraction of the price. lately, i have been noticing a trend among the batteries in my motorcycles. for the first couple of weeks after buying new batteries, they crank the engines really well. then even if i kept them on a charger (yuasa or deltran, i've had both) any time the bikes weren't running, the battery performance would drop and get to cranking the engines slowly again within a few weeks. i even bought a brand new bike last year, and the brand new battery that came in it seemed like it was barely capable of turning the engine over. so i decided to bite the bullet and fork out the money to see if the manufacturer's claims are true. i like trying out new, interesting stuff once in a while, and with this dual output charger, i can plug both my bikes in and only use one power outlet in the garage.

this is one of those very few cases when i can say that the manufacturer's claims are definitely true. both of my bikes turn over MUCH faster after a couple of weeks of being hooked up to this battery charger. the technology just flat out WORKS. if you're in the market for a battery charger/maintainer, i definitely recommend giving this one or it's single output counterpart a try. yeah, they're expensive, but so are motorcycle batteries. i only wish i had bought one of these back in 2007 instead of waiting so long and thinking that the cheapo yuasa and deltran chargers were just as good. try one of these, and i think you'll be impressed.

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I have seen 3 of these identical models now.

I have one that I bought last year, and it's a 2 channel model. It works fine for motorcycle AGM battery maintenance, my application. I continue to use this one.

I needed another 2 channel model (I have too many toys), and I bought and tried 2 of these units in a row, from different distributors. Both exhibited the same failure mode. I made a series of tests using 5 different motorcycle batteries to insure it was not the batteries. It was not to my satisfaction. The failure did indeed follow the charger unit each time.

So, the problem is the charger, on only one channel, would indicate a 75% charge, and never exceed that. That is, it would never get to 100% and then go to "float" mode. It appeared "stuck" at 75%, no matter which battery would be placed on the channel (all the same AGM battery type).

These two boxes had pretty close to the same serial number range, and were both pretty far (in numeric range) from my original (good) charger.

I suspect their latest firmware or software is not too well tested, and is "buggy". I'm not gonna try a 3rd one...