Review on Universal Charger Adapter ThinkPad Computers by Manuel Gfx

My application for charging a solar power plant on the go. It accepts up to 30 volts and up to 120 watts, so this 20v at 90 watt charger sounded perfect. Unfortunately, the charger doesn't have an output current limit, so my power station sees 121 watts! That's 6.05 amps at 20V, while the charger is only rated for 4.5 amps. The picture shows that the charger consumes 143 watts, so its efficiency is 85%. However, it gets very hot after 5 minutes so I can see that it doesn't last very long when overloaded. Other than that, it's a very good device that I'm sure would work well on a laptop, but I'll be back.