Friday, April 19, 2013

Orbtronic PD-18650 2900mAh IMR high drain

Special thank's tto Roland (awsum140) from the states for sending me batteries to test :)

Sunday, April 14, 2013

Fun Project

A friend (www.moutoulos.com )sent me two pcb's and i started placing parts on them, through hole parts.
It's a RDVV PLL transmitter and a 0-30V 0-10A power supply.
You can get the pcb's yourself and assembly them, they are quite easy to build.



Friday, April 5, 2013

Fenix ARB-L2 18650 2600mAh Discharge test.

Here is an interesting battery. This is not a high drain (IMR or Li-Mn if you prefer) battery but it's protected for over currents and temperature.
The test was performed with a 1A charge current as Fenix recommends but i didn't used  the 3V cut off but the normal 2.75V.
Take a look on the temperature of this unit. On 1.92C (5A) Discharge the battery has reached 60 Celcius and the analyzer paused to let the battery cool down. The protection didn't kick in so i guess it goes further but no need to risk it.
It's a neat battery for flashlights anyway, in most cases you do not need to discharge at higher C ratings.
Here is the file Fenix ARB-L2