i learned of this through someone else. i can't really afford it at this time.but went ahead and ordered it.i'give a review once i get it.and try it out.
900000mAh Dual USB Portable Solar Battery Charger Solar Power Bank For Phone KR
https://www.ebay.com/itm/900000mAh-...754078&hash=item33ccdf10ff:g:xYYAAOSw8n5c-eJS
900000mAh Dual USB Portable Solar Battery Charger Solar Power Bank For Phone KR
https://www.ebay.com/itm/900000mAh-...754078&hash=item33ccdf10ff:g:xYYAAOSw8n5c-eJS