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Reviewed in Canada on February 5, 2025
good
Jake
Reviewed in the United States on February 14, 2025
Truly a departure from conventional chargers! Makes me wonder why we didn't do this sooner!I believe this to be nothing more than a 15v 50amp solid state power supply with a shut down circuit on the rear end.The good:It does a good job with the lifepo4, 12v lead acid and SLAs.The current adjustment is VERY handy, as it allows this charger to fill the role of trickle, normal, (10amp) and fast, (50amp), all in a compact package.The bad:The clamps are cheaply made. They don't belong on a charger at this price point. They are stamped, very thin copper, but they feel cheap. Because they are. Next is the heat issue:Running at a rate above 25amps WILL cause the unit to heat up. At 35amps it will get too hot to handle comfortably. At full load, 50 amps, I found it to get very hot extremely quickly. So quickly that I would not be comfortable with running this unit at full power for more than 20 minutes. It just seemed like it was beyond its safe limits at full power. In fact, the instructions say not to run at full power for extended periods. Five hours is an extended period. Twenty minutes is not.While I did not try to reach the thermal shutdown level of use, I was not comfortable with this unit above 25amps for any length of time.And lastly, this is strictly a stand alone 12v charger. It does NOT like to be used in conjunction with ANY other chargers, including identical versions of itself. I found it to operate in an erratic manner when used with a conventional (transformer) charger, AND even more unpredictable when in series OR parallel with its twin.The price:I believe it has come down in price about 20%. When I bought two, they were around $150 each. Too high. At $120 doable, and at $100, a good deal.So there you have my opinion. Only 3 more reviews until I get my free joke!!
michael urbanski
Reviewed in Canada on January 29, 2025
Bought two — both broke within six months, could not take daily use. Too late to return, trouble shooting instructions not helpful, no customer service that I can find. Bought 35 amp ones by Vevor and have no issues at all.
Slackware
Reviewed in the United States on August 25, 2024
I use it to charge a pair of 240ah lithium batteries for my RV. It charges close to the rated 50 amps.I love being able to adjust the charging amps.My setup is uncommon as my main battery bank is 48v 600ah with 48v inverters and 48v solar. Then I have the 12v 480ah for the 12v loads. I have a small solar panel but need to charge this bank sometimes.The ability to decide how quickly to charge is nice. I also use a smart switch to remotely start/stop charging.I wish I could remotely control the charger also. Call it a feature request!
J Feng & D Martin
Reviewed in Canada on March 2, 2024
When charging a LiFePo4 from 110 Volt AC it suggests you run it at 90% to prolong the life of the charger. So while it is advertised at 50 A, you really should be expecting to set it for 45 A normally. I assume it gets warm or something. I was particularly concerned with its ability to stop when the battery was charged, as I had problems with a solar controller doing this, and found that this charger handles that well. For my final install, I think I will cut off the clamps and put rings on the ends of the wires to more securely attach it to my battery.
Jason
Reviewed in Canada on February 12, 2024
This works great in my travel trailer. My LiFePO4 batteries were charging at 20 Amps when I was running the built in generator. With this plugged in to one of the trailers 110 plugs, I can get an additional 50 Amps charging with the generator running. Works really well when I do not have enough sun to charge up the batteries. Easy to connect and use.
Customer
Reviewed in Canada on October 28, 2024
This product has been amazing. I've had it for a couple years and have used it quite a bit. It charges great and works as advertised. This is a great, inexpensive option.
Retired Doc
Reviewed in the United States on January 4, 2024
Charges lithium (or any other batteries) quickly and deeply. We're off grid and don't yet have solar panels in place. Running this charger for just a few hours every other day to charge things up with our generator, gives us all the electricity we need for our purposes (which include our two computers and a TV). My only complaint would be about the start sequence recommended for it, which is little unusual but easy enough to get accustomed to.
The Mac Guy
Reviewed in Canada on August 7, 2023
This charger works great. My only concern is the battery clamps. The connection is quite secure, however these clamps are quite thin and get so hot while charging the insulation melts. The clamps should be made of thicker metal.
Scott S
Reviewed in the United States on July 16, 2023
Been working great past few months. Using in my 5th wheel trailer with lithium batteries as the factory rv charger doesn’t charge past 13.6 volts which is the standard for rv chargers. If you upgrade to lithium or want the full charge to lead or AGM then this is a good route to go. Fan keeps it from overheating and is quite. Just returned to get a second one for my truck camper as I hardwired the 5th wheel one. Recommend if you want batteries to last.
S. Lapidot
Reviewed in the United States on February 24, 2023
I bought this charger after getting disappointed by the "smart" chargers that are sold here on Amazon. This charger is not "smart" in the sense that every idiot can hook it up to a battery and walk away, you kind of need to know what you are doing with this one.But it's not complicated either. For example, I have 2x 100AH LiFePO4 batteries that will be connected in parallel to form a 200AH battery bank in my RV. I want to charge them together at 40A. That's my choice. So I connect the charger to power and to the batteries, and use the dial to set the charging current to 40A. If you have a smaller battery, adjust the current to the appropriate charging rate. That's it. The charger keeps this current constant until the batteries voltage reaches 14.6V (the maximum charging voltage for this kind of battery), and then automatically starts reducing the charging current down from 40A to whatever is needed to maintain 14.6V. This stage ends when the current goes down to 0A. That's when the batteries are full. That's it. That's how you charge LiFePO4 batteries, no need for a smart charger. All you need to know is your specific battery charging rate, and you are good to go.One of the things that I really like about this charger is that it is designed very well. Unlike said "smart chargers", the charging cables in this charger are thick enough, so the voltage shown on the display is nearly identical to the battery voltage. This allows for an efficient and precise charging process.I highly recommend this charger.
Larry Brammer
Reviewed in Canada on December 12, 2023
I am using this charger to charge two 280 ah 12.8 volt lifepo4 battery's in series, and it works like a charm. admittedly at 40 amps the alligator clips do heat up as you might expect they would, so i replaced them with a crimp on ring lug and it is excellent now.
Dan McKay
Reviewed in Canada on October 7, 2023
Very easy to set up - works perfectly - I've tested the unit with external meters - all in agreement - The clamps are cheap and really can not handle the upper end of the current available from the unit - With really careful connection using as much contact area as possible with the clamps they can handle up to about 35A while getting warm but not hot - beyond this I could not find a contact solution with did not get hot - at 45A - way TOO hot - I have replaced the clamps with heavy copper ring connectors and now I can hit ~40A - the wires are getting up there but not too bad - above that and I think the wires will have to be replaced -Great unit - it never gets too warm - just the clamps and wires are cheap - weird they would skimp there - but there are easy to replace - still worth it - best charger I've had to date -
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