Buy
Buying a sodium-ion battery: checklist
Buy the complete system, warranty and support route rather than choosing on the chemistry story or one impressive cell specification.
What matters
Ask for live stock, exact model, datasheet, usable Wh, continuous and surge power, charge/discharge temperature, efficiency, cycle-test conditions, warranty throughput and retained capacity.
The detail
Identify the cell maker, pack maker, UK responsible business, product warrantor and installer. Check compatible inverter or charger models, certification, monitoring, spares and take-back.
Practical conclusion
Get a like-for-like LFP quotation. If sodium does not solve cold charging, material policy or another concrete need, the mature option may be the better purchase.
Sources
- Galvani stackable sodium-ion battery — Eleven Energy, checked 10 November 2026.
- Register energy devices in homes or small businesses — UK Government, checked 10 November 2026.
- Waste batteries: producer responsibility — Environment Agency, updated 11 May 2026.
Sources last checked 10 November 2026. Product availability can change.