DROK 600W 12A DC Boost Voltage Converter 12-60V to 12-80V Step-up Power Supply Transformer Module Regulator Controller CC CV Car Volt Transformer

This item works perfectly! Here is my application and how I use it:I have an RV that has been converted to handicap use. There is a power lift chair that reclines, and also will lift the disabled person to a standing position. It has a power supply that only plugs into a 110V AC wall outlet. The power supply puts out 29V 2A DC to the chair. My problem is that the whole system is horribly inefficient. I had a 600W DC to AC inverter to go from the 12V RV batteries to 110VAC, and then the power supply converts from 110V AC to 29V DC. So many power changes and inefficiencies!With this DC-DC step up converter, I simply took the 12V wires and plugged into the input side of this magic device. I used a voltmeter on the output side and turned the little screw until it read 29V. Then I plugged the chair directly to the output side. It works perfectly to step up the 12V batteries to 29V. Simple, clean installation removes all of the clutter of wires, transformers, power supplies, and junk!

Preliminary testing suggests a FANTASTIC product. My project just involves using my old Dell laptop in my car powered by a separate 12V AGM battery. The Dell requires a 19V input. Although the setup works, the laptop doesn't know what power source it is because it is not receiving the ID information from the 3rd wire inside the cable core. I will need to rectify that by dismantling the old power supply and finding the chip or eeprom that stores that information for the laptop. For the moment, the laptop is not going to charge the battery 'nor operate at full processor speed while hooked up this way but that's OK :) Thank you DROK.

I ordered 4 of these units for a project. The voltage regulation worked but the current regulation didn't work at all. On 3 of them turning the current setting had no affect on the output current. On 1 of them I could adjust the output current initially (8 amps) but after about 10 minutes the output dropped to 1.5 amps or so and you couldn't adjust it back up. I was only putting 80 watts thru the unit so if it was a heat-related protection circuit this thing is no where near the 600 watt claimed rating.

I bought this for a spare. The original has operated flawlessly for 7 years powering (12V -> 24V) networking equipment in a remote solar powered installation. The voltage never drifted.

Good product at a very decent price. Although it didn't serve my purpose, I will still recommend it. The voltage is very stable and clean. The 600 W is one limiting factor. However, there is a second limiting factor. The input current is 16 A max. You can go a bit higher than that, I think. There is a 20 amp fuse on board on the input side. This limits the max watts you can get based on your input voltage. For a 12 volt input from an ATX power box or car battery, you are getting around 192 watt max. This is why it didn't work for me as I needed something around 300 watts. They should change the product title or write in BOLD letters this second limitation. Otherwise, its a nice product and you can use this to build a variable power supply.

Nice unit, easy to connect and works good. I use this to step up 48 vdc solar panel to 56 vdc to change a lithium battery in my ELF from OrganicTransit dot com It works good. There are 2 adjustment screws but no notes on which is voltage and the other amperage. There should be at least a few basic notes with it. But it works good even in the heat of the Phoenix, AZ area.

Current regulator doesn't do anything, Voltage regulator works fine but completely useless to me if the CC pot doesn't do anything.

I have mixed feelings about this unit. It does work at 12VDC, but you will not get the 600 watts output. Without a bigger heat sink or fan, you might get about 100 watts continuous. There seems to be a surge handling capability. I'm using mine to run a DC (solar) deep well pump. It seems to cycle every 5 to 10 seconds. It will slowly ramp up to 100 watts, then drop down to 70 (where the pump stops), and repeat. I blew a few fuses setting the current (marked I) potentiometer. This is less important at higher voltages, but very important at lower voltages as you hit the current ceiling much sooner. I have some doubts about how effectively this unit will handle continuous usage in a high current situation.