Ordered two new Bee Bots for class, they cost £15.00 each.  On arrival I realised they required 3 AA batteries each for the bot itself, and a further two 9 volt batteries, for the two remote controls.  The AA batteries cost £4.99 each and the 9 volt batteries cost £4.00 each.  The Bee Bots no longer appear to be value for money.  Near on £48.00 for two petite remote controlled ICT items.  There must be a cheaper way, they don't even hold the children's attention for that long. 

I am wondering if their is actually Bee Bots out their that are run on lithium batteries or can be plugged in to re-charge?