The more I think about it the more I am convinced that if I could just get hold of a full BL-5J battery I might be able to get my phone going again.
But all 3 I have are dead and I have nothing to charge them up with. Everything I can find here in Brisbane that might help me charge them is either really expensive or would mean waiting weeks/months for something to arrive on a slow boat from China (or both) so I can't charge them.