Hi - I bought cool fire (40 000 LUX led charging station) and I put my Rangeman on it for like 3.5hrs. It had 3/4 and it did not get to 4/4 in this 3.5hrs..... 40K Luxes... While after putting it in charger it got to 4/4 after like around 1hr? Anyone can tell me whats their charging time? Cloudy day I assume aint possible to charge it - is it?