XTPower® MP-32000 Power Bank - portable external USB and high performance DC battery with 32000mAh - 2 USB to 2.1A and DC 9V / 12V / 16V / 19V / 20V 4.5A (Electronics)
The first item I have ordered what RMA. But the customer support from Intecro GmbH has contacted me the VERY NEXT DAY after I sent a not functioning part back. The replacement came very fast. I'm using now MP-50000 (I deciede to try the bigger vrsion
