Anker SOLIX BP2000 Expansion Battery (Gen 2) vs EcoFlow DELTA 2 Max Smart Extra Battery
Two of the expansion batteries in our best expansion batteries for power stations: ecoflow, jackery, anker, bluetti comparison, lined up spec by spec. Every figure comes from the manufacturer pages linked below, and the scores use the same published formula as the full ranking.
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Best for: A light 2 kWh pack for the C2000 Gen 2
Check price at AmazonBest for: Adds 2 kWh to DELTA 2, DELTA Max or DELTA 2 Max
Check price at AmazonSpec-by-spec comparison
Green marks the better published figure. "Not listed" means the manufacturer doesn't publish it.
| Spec | Anker SOLIX BP2000 Expansion Battery (Gen 2) | EcoFlow DELTA 2 Max Smart Extra Battery | Weight |
|---|---|---|---|
| CapacityEnergy the pack adds to your station. | 2048 Wh | 2048 Wh | 45% |
| Energy per kgOur calculation from the maker's capacity and weight. Higher means less to lift per kWh. | 133.9 Wh/kg | 107.8 Wh/kg | 35% |
| Cycle ratingThe maker's cycle rating. Thresholds differ (70% vs 80%), so see the spec table. | Not listed | 3000 cycles | 20% |
| Capacity | 2,048 Wh | 2,048 Wh | info |
| Chemistry | LFP | LFP | info |
| Fits | Anker SOLIX C2000 Gen 2 | DELTA 2 (one pack), DELTA Max and DELTA 2 Max (up to two) | info |
| Weight | 15.3 kg | 19 kg (42 lb) | info |
| Cycle rating | Not listed | 3,000 cycles to >80% | info |
| Dimensions | Not listed | 464 × 235 × 283 mm | info |
| VoltPick score | 5.8/10 | 3.3/10 | 100% |
Where each one comes out ahead
Anker SOLIX BP2000 Expansion Battery (Gen 2)
Better published figure on: Energy per kg.
What we like
- Lightest 2 kWh pack here
- High energy per kg
Watch out for
- Anker's page lists few pack specs (no cycle rating)
EcoFlow DELTA 2 Max Smart Extra Battery
No scored spec where it is strictly ahead; its case rests on the strengths below.
What we like
- Fits three DELTA models
- App monitoring
- Can be charged on its own by an EcoFlow Smart Generator
Watch out for
- No outlets of its own
Verdict
Both about 2 kWh and only fit their own brand. Anker's pack is 3.7 kg lighter; EcoFlow publishes a 3,000-cycle rating.
- Anker SOLIX BP2000 Expansion Battery (Gen 2): Anker SOLIX: C2000 Gen 2 page (BP2000 specs)
- EcoFlow DELTA 2 Max Smart Extra Battery: EcoFlow: DELTA 2 Max Smart Extra Battery specs