I live in the UK and started a thread entitled 'Battery Issues', less than a year ago, from memory. I'm not sure anything is guaranteed in respect of battery sizes. All sizes given by manufacturers for 9v batteries have a plus/minus 1mm tolerance - which, on the 'plus' side, is all it takes to give a bad fit (Taylors suggest cutting off the top of the battery holder). I got a supply from Battery Junction in the US. They sell 'Made in US' Duracells at a very reasonable price (take care to specify 'Made in US' as they sell Far Eastern-made Duracells as well. They're 10 cents cheaper but are much less likely to fit). The problem, for us Brits, is the postage cost. Luckily, I had a friend in the States at the time, so I had the batteries addressed to him and he brought them back when he came. Even the internal-US postage almost doubled the cost of the batteries (I bought 12) but at something like $2 each they are still a lot cheaper than good quality Duracells bought in the UK. There is a shop near Bournemouth called 'Guitar Mania' which used to advertise Duracells to fit Taylor guitars at £4.95 each - so that might be a quick fix, if you are desperate. Hope that helps.