Hi Kephra,
I bought a Silvertron mini a while ago and it is working great. I see there is a new silvertron Junior with 3ma and 13ma(this would be about double the mini's current). On the product description page it say "This unit can also be powered from 4 AA cells, 4 D size cells, or a 6 volt lantern battery for emergency use." Is this included with the Silvertron Junior or does this require the battery holder for the elite (the description show and say 6 D cells). If the Silvertron Junior is portable and cut my time in half when making high concentration colloidal silver, it would be worth it to me to get it. Thanks.