Thunderheart Reviews

Samsung INR18650-30Q is a high capacity 3000mAh Li-ion cell of 18650 size which supports continuous discharge at up to 15A. It's can be called a high drain cell or a mid-to-high drain one. The battery was bought from my reliable supplier ( Queen Battery ) and tested  with  ZKETECH EBC-A20  and a self-made battery holder. It's a PC-connected battery tester supporting 4-wire measuring and discharging at up to 20A. I've used version 3.0 of my battery holder based on 0.5mm thick pure copper terminals I've followed all the prescriptions of the  IEC61960-2003  standard concerning battery's capacity measurement. Before each discharging cycle each battery was charged at standard charge current mentioned in its datasheet to charge end voltage. Before each discharging or charging i've held a 1-1.5hrs pause. The environment temperature was 23.0-24.5°C. To be sure in results i've done each test  minimum twice  (usually 3-4 times). Samsung INR18650-30Q Th

Panasonic NCR18650BD is a mid-drain high capacity Li-ion cell in traditional 18650 format. It's rated at 3180mAh and supports discharging at up to 10A. Tests were done using  ZKETECH EBC-A20 , which supports up to 20A discharge, 4-wire measurement and is PC-connected. I've used version 3.0 of my battery holder based on 0.5mm thick pure copper terminals I've followed all the prescriptions of the  IEC61960-2003  standard concerning battery's capacity measurement. Before each discharging cycle each battery was charged at standard current mentioned in its datasheet to charge end voltage (4.2V) (cut-off at 0.1A, which is the lowest supported by EBC-A20). Before each discharging or charging i've held a 1-1.5hrs pause. The environment temperature was 23.5-24.5°C. To be sure in results i've done each test minimum twice (usually 3-4 times). Battery was bought from  Queen Battery . Panasonic NCR18650BD My cell has the following marking:  C CV 7321 . S

Panasonic NCR18650BM is a low drain high capacity Li-ion cell in traditional 18650 format. It's rated at 3180mAh and supports discharging at up to 3.64A. Tests were done using  ZKETECH EBC-A20 , which supports up to 20A discharge, 4-wire measurement and is PC-connected. I've used version 3.0 of my battery holder based on 0.5mm thick pure copper terminals I've followed all the prescriptions of the  IEC61960-2003  standard concerning battery's capacity measurement. Before each discharging cycle each battery was charged at standard current mentioned in its datasheet to charge end voltage (4.2V) (cut-off at 0.1A, which is the lowest supported by EBC-A20). Before each discharging or charging i've held a 1-1.5hrs pause. The environment temperature was 23.5-24.5°C. To be sure in results i've done each test minimum twice (usually 3-4 times). Battery was bought from  Queen Battery . Panasonic NCR18650BM My cell has the following marking: S NV 6722 . It m

14500 is the same AA size we used to see in alkaline and Ni-MH batteries. It assumes 50mm in length and 14mm in diameter. Previously i've tested  SONY US14500VR2 and TrustFire 900mAh and Sanyo UR14500P is the third cell in this format i tested. It's a 840mAh rated low-drain cell without protection PCB. Tests were done using  ZKETECH EBC-A20 , which supports up to 20A discharge, 4-wire measurement and is PC-connected. I've used version 3.0 of my battery holder based on 0.5mm thick pure copper terminals I've followed all the prescriptions of the  IEC61960-2003  standard concerning battery's capacity measurement. Before each discharging cycle each battery was charged at standard current mentioned in its datasheet to charge end voltage (4.2V) (cut-off at 0.1A, which is the lowest supported by EBC-A20). Before each discharging or charging i've held a 1-1.5hrs pause. The environment temperature was 23.5-24.5°C. To be sure in results i've done each

I've previously tested Sanyo UR18650ZTA and this time i've got anoother 4.35V cell - LG E1. The battery was bought from my reliable supplier ( Queen Battery ) and tested  with  ZKETECH EBC-A20  and a self-made battery holder. It's a PC-connected battery tester supporting 4-wire measuring and discharging at up to 20A. I've used version 3.0 of my battery holder based on 0.5mm thick pure copper terminals I've followed all the prescriptions of the  IEC61960-2003  standard concerning battery's capacity measurement. Before each discharging cycle each battery was charged at standard charge current mentioned in its datasheet to charge end voltage. Before each discharging or charging i've held a 1-1.5hrs pause. The environment temperature was 23.0-24.5°C. To be sure in results i've done each test  minimum twice  (usually 3-4 times). LG ICR18650 E1 The c ell is  marked as  LGABE11865 0247I048AB   . The main specs from LG E1 datasheet ( pdf ):

Samsung INR18650-25R is a 2500mAh Li-ion cell of 18650 size which supports continuous discharge at up to 20A. The battery was bought from my reliable supplier ( Queen Battery ) and tested  with  ZKETECH EBC-A20  and a self-made battery holder. It's a PC-connected battery tester supporting 4-wire measuring and discharging at up to 20A. I've used version 3.0 of my battery holder based on 0.5mm thick pure copper terminals I've followed all the prescriptions of the  IEC61960-2003  standard concerning battery's capacity measurement. Before each discharging cycle each battery was charged at standard charge current mentioned in its datasheet to charge end voltage. Before each discharging or charging i've held a 1-1.5hrs pause. The environment temperature was 23.0-24.5°C. To be sure in results i've done each test  minimum twice  (usually 3-4 times). Samsung INR18650-25R The c ell is  marked as  INR18650-25R  SAMSUNG SDI 5  2H62   which means that the pro