USB charging outlet from ebike 36 volt battery

[cwah]

You can get some very good and cheap adjustable step up MPPT chargers from Aliexpress. In case others didn't get it Cwah's USB thing is for 12v batteries.

http://www.aliexpress.com/item/MPPT-Boost-Solar-Charge-Controller-step-up-90V20A-charge-all-kinds-battery/1708497647.html?spm=2114.031010208.8.5.bZag34

The first one was for 12v, this one is for 36v:
http://www.ebay.co.uk/itm/DC-to-DC-Converter-12V-24V-36V-48V-step-down-to-5V-Micro-USB-OUTPUT-power-supply/321517927058?_trksid=p2047675.c100005.m1851&_trkparms=aid=222007&algo=SIC.MBE&ao=1&asc=20140122125356&meid=70f92c95a9fe4b23a112c8cad37d1fb6&pid=100005&rk=3&rkt=6&sd=191667518680