This test is in reference to my eariler post (found here). So I charged up the Tekkeon overnight and setup this Timelapse test. The reason I used a Timelapse method was to determine if the light output would change during the duration of battery use. I locked the exposure on the camera to 1/25th F/4 and ISO 100 to see if the light output would dim towards the end. The big 900 LED light was set to full power.
It was interesting to see that the Tekkeon remained at a full 14 Volts during the entire test, and when the indicator was down to the last bar, the battery just shut off instantly. If there was a voltage drop during the test, the 900 LED light would start to dim (it didn't dim). Total run time in this test was about 1 hour 6 minutes (1:06). Keep in mind this is a larger 900 LED light on full. If performed at lower output, or for smaller lights like the 600 LED, or 312 LED at only 12 Volts, it would probably run for several hours.
Don't get me wrong. I'm still loving my little 5V USB / 12V Battery packs that can power many things, but it comes up short if I need to power up the 900 LED video light panels at full brightness. The 900 LED video light requires 14V DC. There's a number of different DIY battery packs I can make but that would limit me to just one voltage. Instead of going straight into the expensive V-Mount batteries, this Tekkeon universal batttery pack (a cheaper solution) allows me to power up virtually anything between 5V and 19V. All it takes to power up any accessory is flip of a few dim switches and select one of the many universal sized power tips. I'm going to give this battery a full charge and then test the run time at full brightness.