You're asking me about what the future of battery technology...

You're asking me about what the future of battery technology will be? Clearly that's not something I can answer. However to assume that the world will remain permanently as it is without any innovations or changes is naive to say the least.

The question is not if the technology is invented - it's when. In all likelihood, I think this is many years away - but you can't discount the risk of some new game changing technology coming in and taking the renewable world by storm.

I think we are safe in the timeframes in which LTR is operating - provided that there aren't extensive delays to production. Ideally we'd want to be cashing dividends for a few years before any disruption from future tech.