Thunderheart Reviews

I've previously tested prismatic 103450 batteries from Panasonic and Maxell  made in Japan. This time i've tested the third cell from Japan - Sanyo UF103450PN. Like its competitors it's a low-drain Li-ion cell mainly used to power small devices and build battery packs. Queen Battery also offers this cells with 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 ...

Panasonic NCR18650B is probably the most popular Li-ion battery of 18650 size. Though it's rated at 3350mAh it's usually listed as 3400mAh on suppliers' sites as well as LG F1L . They are both 3350mAh cells with 4.87A maximum discharge rating so they must be compared. I've tested both cells at 0.65A (0.2C), 2A and 5A. As always the tests were done using  ZKETECH EBC-A20 , which supports up to 20A discharge, 4-wire measurement and is PC-connected. Using  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 ...