After a very muddy 20 miles got flashing red one flash blue battery lights flash back on red and blue etc. Switched of motor then back on it was ok for 200 metres same again so switched power off and wouldn't come back on .Started cycling home did 3 miles tried and on it came again ok for next 2 miles to house. It wasn't keen to switch on this morning took maybe 5 or 6 goes before it went on. Charged last night and ok then.