A Non-technical Angle on the Economics of Lithium

Like many I wrestled with the wisdom of spending a fair chunk of money on an upgrade to lithium plus charger plus inverter. After doing it (pretty impressed too) I realised there was another angle to this that I hadn’t seen represented anywhere. Once you reach a certain age, say retirement age, you realise that there is likely to be a limit to how many years of happy camping you have left - and none can predict this. So the longer you put off the decision, the less value you will get from it. The principle applies to other stuff too, and you can use it to justify all sorts of expenditure at the toy shop of your choice.