Showing posts with label 18650. Show all posts
Showing posts with label 18650. Show all posts

Sunday, July 14, 2013

Vamo simulation. Real world battery test


The guys here http://www.e-cigarette-forum.com/forum/vamo/355592-vamo-battery-thread-16.html were wondering about the performance of the VAMO e-cig with 1 28650 battery or with 2 18350 stacked.
I have some Efest batteries from the last test and awsum140 measured some current consumptions for me.
So we created a "vape" simulation with both batteries, it draws the same power that the Vamo uses during vaping for 5 seconds and rests for 25 seconds. All that to simulate the actions of the user while using it. It's like chain vaping until the battery reaches the 3.3 cut off voltage. (we didn't use the 2.750V cut off since users tend to recharge the batteries at 3.3V)

The 18650 gave us 250 puffs both times. Continuous vaping for 2 hours

The stacked 18350 gave us 477 puffs (?!?) the first time and 479 the second time. Continuous vaping for 4 hours

Seems like using two stacked batteries performs a lot better.

Get the files here:
Efest 18350 525 Vape test


Note: the stacked 18350 batteries ran cooler than the 18650 mainly because the mod draws 1.02A at 7W so there was not so much stressing.

Monday, June 24, 2013

Cytac batteries

Coming soon a test on cytac batteries and their chargers, i am waiting for their new charger.


Also a teardown of the Sanyo eneloop charger.

Friday, April 19, 2013

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

Thursday, March 14, 2013

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

Tuesday, March 12, 2013

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