Modular battery packs protect the investment because capacity can be added or reconfigured later, and existing Delta Pro Ultra batteries can work with the newer inverter after the required update.
Pros: power output, home backup capability
Cons: AC outlet count, UPS functionality
One teardown-oriented reviewer said the internal pack can be reached and replaced, though it is not a simple user-swappable design.
Pros: overall product satisfaction, AC charging speed
Cons: runtime, high-demand appliance support
The internal battery is not removable, which makes the station a poor fit for buyers who want a replaceable-pack path or future capacity flexibility.
Pros: overall product satisfaction, cold-weather performance
Cons: value for money, weight