A20 universal external battery pack

MOLD CODE: A20 SIZE: 30x85X168mm CAPACITY: 3.7V 20000MAH 3.7V 20000MAH, 7.4V 10000MAH, 11.1V 6500MAH, 14.8V 5000MAH, 19V 4000MAH... ONE TACTILE SWITCH 1 LED LIGHTS or 1 digital tube OR NO LED/SWITCH AT ALL Different models availible as following list: A20--100000: 4.2V input, 3v 4.2v output ***for 3v 5v electronic gears A20--10000U: 4.2V input, 5.5V output [USB standard output] ***for USB electronic gears A20--10000N: 5.2V input, 5.5V output [USB standard input/output] ***for USB electronic gears A20--142592: 4.2V input, 3v 4.2v output with adjustable power levels ***for heated warm wear gears A20--142090: 4.2V input, 3v 4.2v output with battery power gauge ***for 3v 5v electronic gears A20--142598: 4.2V input, 3V 4.2V output adjustable + 5.5V output [USB standard output], with battery gauge ***for 3V 6V all gears A20--142099: 4.2V input, 3V 4.2V output nonadjustable + 5.5V output [USB standard output], with battery gauge ***for 3V 6V all gears A20--14209U: 4.2V input, 5.5V output [USB standard output], with battery gauge ***for USB electronic gears A20--14209N: 5.2V input, 5.5V output [USB standard input/output], with battery gauge ***for USB electronic gears A20--200000: 8.4V input, 6v 8.4v output ***for 6v 9v electronic gears A20--20000U: 8.4V input, 5.5V output [USB standard output] ***for USB electronic gears A20--242592: 8.4V input, 6v 8.4v output output with adjustable power levels ***for 6v 9v electronic heated warm wears A20--242090: 8.4V input, 6v 8.4v output with battery power gauge ***for 6v 9v electronic gears A20--242598: 8.4V input, 6v 8.4v output adjustable + 5.5V output [USB standard output], with battery gauge ***for USB electronic gears A20--242099: 8.4V input, 6v 8.4v output nonadjustable + 5.5V output [USB standard output], with battery gauge ***for USB electronic gears A20--24204U: 8.4V input, 5.5V output [USB standard output], with battery gauge ***for USB electronic gears A20--300000: 8.4V input, 6v 8.4v output ***for 6v 9v electronic gears A20--30000U: 8.4V input, 5.5V output [USB standard output] ***for USB electronic gears A20--342592: 8.4V input, 6v 8.4v output output with adjustable power levels ***for 6v 9v electronic heated warm wears A20--342090: 8.4V input, 6v 8.4v output with battery power gauge ***for 6v 9v electronic gears A20--342598: 8.4V input, 6v 8.4v output adjustable + 5.5V output [USB standard output], with battery gauge ***for USB electronic gears A20--342099: 8.4V input, 6v 8.4v output nonadjustable + 5.5V output [USB standard output], with battery gauge ***for USB electronic gears A20--34204U: 8.4V input, 5.5V output [USB standard output], with battery gauge ***for USB electronic gears A20--400000: 12.6v input, 9v 12.6v output ***for 6v 9v electronic gears A20--40000U: 12.6v input, 9v 12.6v output [USB standard output] ***for USB electronic gears A20--442592: 12.6v input, 9v 12.6v output output with adjustable power levels ***for 6v 9v electronic heated warm wears A20--442090: 12.6v input, 9v 12.6v output with battery power gauge ***for 6v 9v electronic gears A20--442598: 12.6v input, 9v 12.6v output adjustable + 5.5V output [USB standard output], with battery gauge ***for USB electronic gears A20--442099: 12.6v input, 9v 12.6v output nonadjustable + 5.5V output [USB standard output], with battery gauge ***for USB electronic gears A20--44204U: 12.6v input, 9v 12.6v output [USB standard output], with battery gauge ***for USB electronic gears A20--500000: 22.2v input, 15v 22.2v output ***for 6v 9v electronic gears A20--50000U: 22.2v input, 15v 22.2v output [USB standard output] ***for USB electronic gears A20--542592: 22.2v input, 15v 22.2v output output with adjustable power levels ***for 6v 9v electronic heated warm wears A20--542090: 22.2v input, 15v 22.2v output with battery power gauge ***for 6v 9v electronic gears A20--542598: 22.2v input, 15v 22.2v output adjustable + 5.5V output [USB standard output], with battery gauge ***for USB electronic gears A20--542099: 22.2v input, 15v 22.2v output nonadjustable + 5.5V output [USB standard output], with battery gauge ***for USB electronic gears A20--54204U: 22.2v input, 15v 22.2v output [USB standard output], with battery gauge ***for USB electronic gears made to customer's specification accessory wires for wide connection ....