I'm looking to get some new 18650 batteries for my zmax and was wondering which batteries would be a better choice. So if you battery experts could let me know which is the better choice for long life. The Samsung ICR18650-28a 2800 mah or the Panasonic NCR18650b 3400 mah battery. So if you have used both and have real life experiance or are just an electrical genius and battery expert please let me know and thank you in advance for any input.