Hi guys.
I want to buy a rechargeable 18650 for my torch ( i use klarus xt11gt, or xt2cr, or fitorch p20r, fitorch m30r) and only in my klarus battery i see really power in all torches i use, all my other batteries i have , full charged , give me low lumens. I dont have a device to count them, any suggestion for me please?
Especially if i can buy from a shop like aliexpress, bangood or gearbest or a store like this china shops , because its easiest ti get them in normal price… thanks in advance
If I understand you correctly you want to measure how many mAh your batteries get after charging to see if there’s a problem with them.Every decent 18650 charger will have a screen showing how many mAh your battery was charged with.If you don’t have a charger with a screen maybe ask a vaper friend to put them in their mod so you can see the status of the battery.I’m also Greek, so if you have any further questions send me a PM 
My suggestion would be Samsung 30Q’s or Sony VTC6 and the Panasonic Sanyo NCR18650GA. If the light draws under 5 amps NCR18650GA would be my choice. Over 5 amps and I would choose either one of the two.
Many thanks!! So i go for these 3! Best regards !!!
The 2nd gen XT11GT would be at the higher end of the NCR18650GAs limit, so I would look at the 30Q or VTC6. The XT11GT should come with a protected 3100mAh Klarus branded 18650.