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.

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

Efest IMR 18490V2, 16340V2, 18350V1, 18650V1, 18500V2 test results.

Here are a few more of the efest batteries you might be interested.

You can get the result files here:

Efest IMR16340V2

Efest IMR18350V1

Efest IMR18490V2

Efest IMR18650V1

Efest IMR18500V2

Efest IMR18350V2 1C and 2C Test

Battery performs as it should. Here you can get both files. Efest IMR18350V2 1C and 2C

EFEST IMR18650V2 Battery discharge test

This battery is a winner. Infact it performs almost as the 2250mAh version.

On the pdf you will find the 1C (2000mA) and 2.5C (5000mA) test

Get the file here Efest IMR18650V2 Test

Efest battery test coming soon.

New efest battery tests will be posted as soon as i have the results.

Batteries under test are:

e-fest 18490 1100mah 3.7V Limn battery-Nipple              

E-fest 18350 800mah 3.7V Limn battery-nipple

E-fest 18350 800mah 3.7V Limn battery-flat top

e-fest 18500 1100mah 3.7V Limn battery-Nipple

e-fest 18650 2000mah 3.7V Limn battery-flat top

e-fest 18650 2000mah 3.7V Limn battery-Nipple

e-fest 14500 700mah 3.7V Limn battery-Nipple

e-fest 16340 550mah 3.7V Limn battery-Nipple

Testing bigger batteries