Sigenergy SigenStor BAT 10.0 (9.04 kWh) vs Tesla Powerwall 3 Expansion (13.5 kWh)

Both are batteries. Every figure below is a stored value from our catalogue — where a product does not publish one, the cell says so rather than guessing.

Specifications side by side

Sigenergy SigenStor BAT 10.0 (9.04 kWh) and Tesla Powerwall 3 Expansion (13.5 kWh) specifications side by side
Specification	Sigenergy SigenStor BAT 10.0 (9.04 kWh)	Tesla Powerwall 3 Expansion (13.5 kWh)
Usable capacity	9.04 kWh	13.5 kWh

Specification provenance: Unverified imported catalogue data on both sides — per-field datasheet citations are being added as documents are processed.

Physical & sourcing

Sigenergy SigenStor BAT 10.0 (9.04 kWh) and Tesla Powerwall 3 Expansion (13.5 kWh) physical dimensions and sourcing
Width × Height × Depth	650 × 780 × 220 mm	700 × 1100 × 240 mm
Weight	95 kg	150 kg
Country of origin	CN	US

Dimensions: Sigenergy SigenStor BAT 10.0 (9.04 kWh) — estimated from comparable equipment — not a measurement; Tesla Powerwall 3 Expansion (13.5 kWh) — estimated from comparable equipment — not a measurement.

Which should you choose?

We deliberately do not pick a winner: the right choice depends on your roof, your existing equipment and your tariff, and we hold no evidence that would justify a general ranking. Put both through a full compatibility-checked design instead.

Design a system with either

Automatic Expert Manufacturer Approved Manufacturer Guaranteed

Compatibility levels: what we have read, and what the manufacturer has promised

Minute Solar's reading

Automatic. Read by Minute Solar from recorded specifications, compatibility groups or a stored record that has not yet been reviewed; no manufacturer approval is recorded.
Expert. Reviewed and accepted by a named expert within their approved area, or supported by Minute Solar testing; it is not manufacturer approval or a guarantee.

The manufacturer's word

Manufacturer Approved. The manufacturer has confirmed this exact pairing in writing (grey tick).
Manufacturer Guaranteed. A contractual manufacturer guarantee is recorded for this pairing (blue tick).

A is the default: our reading of a stored record or a manufacturer compatibility group before anyone has reviewed it, not the manufacturer's word. No decision recorded means there is neither, and it is not incompatible. Evidence applies to the stated pairing and conditions.