Worth bookmarking this thread — certification details are genuinely hard to track down when you're shopping for portable power stations, and most product listings bury or omit them entirely.
From my own experience fitting out a shepherd's hut and a van build, I've learned the hard way that CE marking alone means very little. You want to see IEC 62619 compliance for lithium battery safety specifically, and ideally UN 38.3 certification if you're transporting the unit. A lot of the budget units flooding Amazon right now carry dubious self-certified CE marks with no supporting documentation.
A few things I'd suggest adding to any lookup resource here:
- Warranty territory — does the manufacturer actually honour warranty claims from UK customers, or do you end up shipping a 20kg unit to a European depot?
- BMS quality — this rarely appears in spec sheets but makes an enormous difference in real-world longevity
- Cell provenance — CATL vs generic cells matters significantly, even within the same brand tier
Brands like EcoFlow and Jackery at least have UK support structures worth noting. The lesser-known units can be fine but you're largely on your own if something fails.
Would be particularly useful if contributors could flag whether units have passed any independent third-party testing rather than relying solely on manufacturer claims. Has anyone here actually requested and received full test documentation from a supplier successfully? Curious whether that's a realistic ask in practice or whether manufacturers routinely dodge it.