GT-ahh, what are you using to charge your Mini-Zs cells? You can do your own simple charger for the Epoch, but it would require very careful monitoring during charging. If you can find a power supply that puts out 4.8V and 0.1-0.5A or so, you could do a timed charge. Honestly though, I'd recommend just getting the charger - let us know if you'd like to order from the Shop so we can get you a quote on shipping to Oz.