You really need to buy a power supply has your are very limited, with crap 50/80 watt chargers.
I would be looking at the icharger range, you just need a a budget of about £130/50 for a decent set up, I do have some links
I have used my icharger 208B for 3 1/2 years no probs, and power supply was the much more one but only puts 15v in to the charger no good anymore, so eFUEL power supply are great money £75 for that £75 charger in my eyes that a good deal for a ok set up
Power supply
http://www.ebay.co.uk/itm/New-SKYRC-...item35ce940aa4
Charger
http://www.hobbyking.com/hobbyking/s...e_Charger.html