Category: Reviews
-

A Quick Post On LiFePO4 C-rate – charge, discharge and treating storage batteries right
What is C-rate and why is it important? Recently, I tested a 200 amp-hour LiFePo4 12v battery for a video review I did for my YouTube channel (Timeusb 200ah, posted on this page). Although it was not the main focus of the video itself, during the review I made some comments about C-rate and decided…
-

Pure 12V Off Grid Cooking With a 200AH LiFePo4 Battery! Article and video
A larger 12v lithium ion battery offers a renewable energy source for cooking. In fact, such a good sized battery can replace the fuel tank typically used for cooking in some scenarios. Recently I received a sample of Power Queen’s 200ah deep cycle LiFePo4 battery. I put it to the test by simultaneously operating three…
-

Pecron E600 LFP – solar generator endurance test and review
A solar generator is a great way for people who are new to solar power to get started without much effort. Just plug in the solar panels and go. Over past years I have collected, purchased and repaired over 40 solar generators and portable power stations of various kinds – definitely enough to experience their…
-

Nichrome and fuses melting at 1800x magnification – video
Recently I was asked by Joyalens to review their JL246MS digital microscope. I accepted in order to look at Nichrome and fuses up close. (Note I don’t receive any commissions for sales). Interestingly this microscope is USB 5v powered, so it’s easy to run even off of a battery pack if needed. Nichrome wire forms…
-

VIDEO: Digital Multimeters for DIY Solar Power – Tutorial guide
Beginner Friendly! I have produced a second tutorial video about learning to use a Digital Multimeter (DMM) with DIY solar power. In this Part 2 video, I will teach you how do basic measurements and checks against some solar power components. In the video I will also be reviewing my Gochifix 3-in-1 digital multimeter and…
-

Tiny 12V LiFePo4 Lithium Solar Powered Kitchen Setup – Emergency Preparedness Test
Cooking food from smaller solar power systems has always been one of my key interests. High tech survival and emergency preparedness too. But cooking with standard kitchen appliances often seems out of reach due to the high power draw required. And many people do not have large batteries and inverters to do the task. The…
-

Bateria Power 20A MPPT Solar Charge Controller review / bench test
Recently a company called Bateria Power offered to send me their 20A MPPT charge controller (SunRock 20pro) for review. I was not even aware it existed, so I decided to give it a try. This unit is really small! It has no fans or moving parts, and appears to be totally sealed with an IP45…
-

Best oscilloscope for beginners? FNIRSI-1C5 first look, unpaid review
(The author purchased this item with his own money) If you wish to support the blog, here is an affiliate link to buy the 1C15 on Amazon Having worked on various electronics for 15 years, I never actually owned an oscilloscope. They took up too much room on the workbench and I thought they were…