Pourquoi tous les onduleurs n'utilisent-ils pas des batteries lithium-ion?

Parce que le lithium-ion n'est pas disponible, dans de nombreux endroits, ils sont vraiment difficiles à trouver. Ils doivent être importés d'un autre endroit afin qu'ils ne soient pas beaucoup utilisés.

Le prix est également une autre chose importante à considérer ici, le prix des cellules lithium-ion est nettement plus élevé que celui des cellules plomb-acide/plomb-acide scellées, yes lithium ion will give you more cycle and will be less bulky but sometimes people care more about the money because in many instances, all the inverters has tubular lead acid batteries because they are rarely moved. So mass is not the factor.

Another reason is lead acid batteries are here for a while, within this time huge amount of experiments have been conducted on them and we know about them very well and charging circuit for lithium ion is much simpler than that of lithium ion so many manufacturers tend to use lead acid batteries.

And the most important thing maybe is the fact that lead acid batteries works just fine, the 100Ahr batteries that we were using,they lasted for about 5 years each which is an awesome value and I’m sure many of the manufacturer and user will share the same view so I think these are the reasons why all of the inverters are not using lithium ions.