What is the capability of the Diamond Battery versus a normal battery?

Standard alkaline AA batteries are designed for short timeframe discharge: one battery
weighing about 20g has an energy storage rating of 700J/g. If operated continuously, this
would run out in 24 hours.
In comparison, a diamond beta-battery would be designed to last longer. The actual amount
of C14 in each battery has yet to be decided but as a rough guide, one battery, containing
1g of C14 will deliver 15J per day (based on calculations extrapolated from Ni63
prototype). On the face of it, this is less than an AA battery. However, it will continue to
produce this level of output for 5,730 years, so its total energy storage rating is very high
(2.7TeraJ aka million million Joules).

What is the approximate volume of the battery?

The approximate volume of the prototype diamond devices we are working on are 10 mm x
10mm with a thickness up to 0.5 mm. This is the ‘active’ device and does not include the
metallic contacts and wiring to complete the circuit.

Is the battery technology scalable?

In short – yes! Much like a normal battery consists of multiple cells we could also sum
currents from multiple cells to up the power output.