DMT1250 Abso DC-DC Charger, 50A

Decided to purchase this charger for my portable LiFeP04 battery. I needed a charger that supported lithium batteries and multiple inputs of charging (Both solar and DC to DC charging). I think this is designed for RV and Marine use mostly but I am going to use it in a portable charging setup. It's so small and compact so it will work well for my needs. It even fits in my small B&W Type 1000 case PERFECTLY, there is NO side to side play, and just about a quarter of an inch play up and down.I plan to use this charger while car camping/during emergencies to keep my LiFeP04 battery topped off while running all my DC electronics (camping shower, 12v fridges, charging flashlights, phones and cameras, laptop and so forth...). These types of chargers are very popular in the overlanding hobby. It's a complete beast and supports up to 50amps of charging! You'll need to plan ahead with your wiring in order to get that full output. In my photos you'll see I ran two 12awg wires in parallel for each connection so I can get at least 40amps charging safely. I'd need to upgrade to larger wiring to get 50amps.I will probably use the solar MPPT charge controller input the most of the time, but having the DC to DC charger available is very nice if the sun isn't around (Cloudy or nighttime). I have had multiple day stretches without sun so another function of charging really comes in handy if your battery can't be charged by the sun.Solar input supports input voltage of 10.5 – 32 Vdc and up to 50amps. It is an MPPT charge controller so its rated above 90% efficiency.DC to DC input supports 10.5 – 32 Vdc and is designed to be from a starter battery being charged by an alternator. It also supports 50amps charging.Their are three connections I decided to use on this charger.1) DC input = Power source from your starter battery/alternator. I plan to connect to my battery while my vehicle is running in order to get my at least 40amps of charging. Not the best mode of charging but when I don't have any sun this will really help out. I can also charge my battery while driving on the road with this function. My battery will be full and ready to use when I get to camp.2) Solar input = Power source directly from your solar panels. I have around 300 watts of solar and it's good to know it will support much more.3) DC output to the battery = This is where you connect your battery that you want to charge. It supports the following battery types: Gel, AGM, Flooded, Lithium, Program

Update: The screen is not working. At first I didn't get a response from support, but now he is very helpful trying to troubleshoot. Hoping to get it resolved.Update 2:. Customer support has been great. It's working as advertised! Thanks.

I've had this unit for a couple of years and it is working great but trying to get customer service to respond is too slow. I would give 5 stars if faster response from Ricardo at Kisae

Doing a CTC build. Got this due to having a DC-DC 50 amp charge rate from my truck. Installed a 280 alternator to handle the charging. Really don't need to take a generator with me. Will install 500 watts of solar this summer. Programming is a little confusing at first, but got into it and changed from default of AGM battery to lithium and set my charge rate parameters. Hooked into my parking lights to turn on the unit until I run another line. If you run a 120v fridge off your batteries, I recommend a DC-DC charger to at least make up for what the fridge draws while travelling. Recommded buy.

Installed under seat of MB Sprinter. Works great. Quiet. Low heat.

Going on 2 years with this unit in my 4x4 camper van with a 215ah ambulance package alternator. It's wired to my ignition so it turns on with the key. I decided to use a separate solar charger even though this one does both. It just doesn't do both at the same time. For my 200ah lithium battery I wanted 50amps when I'm driving PLUS my 16ah of solar. My battery can take 100ah so I wanted to get as much charge as possible while driving between camp spots. It's been great though and I'm very happy with it. Customer service has been great for me.

PLEASE NOTE: For lithium installations, the KISAE BTS-10K temperature sensor is NOTrequired to be installed for these applications.Update: When done charging, it normally goes to sleep mode with 0W draw. But often it gets stuck and keeps drawing 5W throughout the night even with the screen turned off. Cycling it off and on fixes that issue until the next charging ends. So it needs to be manually turned off and on daily.

Oddly on occasion the charger has an draw of 0.2-03A after finishing charging from solar. Happens every other time. Customer service could not resolve. Only solution is to switch off the KISAE charger at night and then turn it back on in the morning to eliminate this high (for parasitic) current draw.

Installed and works well... in our 2021 Leisure Travel Van... fan is quiet running.