I fund that my 15Amp batterycharger doesn’t provide enough power.
http://www.ebay.co.uk/itm/12V-30A-36...item231493182c

i bought somthing like this for mine, iv not tripped it out once so far

My next spindle is going to have 2 or 3 motors 3kW motors on the same shaft, ER-20 up to 27000rpm (ish)
on your router ?... i cant imagine a router making use of so much power, youve got me thinking cutting wood at high speed must soak up the spindle watts

i only ever cut alli and plastics and iv never needed any more than 360W... my top speed is only 1500mm though wich i guess is not worth getting out of bed for in "Jonathan world " :lol: