EcoFlow DELTA Pro 3 Smart Extra Battery vs Anker SOLIX BP3800 Expansion 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: 4 kWh more for the DELTA Pro 3
Check price at AmazonBest for: 3.84 kWh packs that stack up to six on an F3800 Plus
Check price at AmazonSpec-by-spec comparison
Green marks the better published figure. "Not listed" means the manufacturer doesn't publish it.
| Spec | EcoFlow DELTA Pro 3 Smart Extra Battery | Anker SOLIX BP3800 Expansion Battery | Weight |
|---|---|---|---|
| CapacityEnergy the pack adds to your station. | 4096 Wh | 3840 Wh | 45% |
| Energy per kgOur calculation from the maker's capacity and weight. Higher means less to lift per kWh. | 124.1 Wh/kg | 116.3 Wh/kg | 35% |
| Cycle ratingThe maker's cycle rating. Thresholds differ (70% vs 80%), so see the spec table. | Not listed | Not listed | 20% |
| Capacity | 4,096 Wh | 3,840 Wh | info |
| Fits | DELTA Pro 3 (up to 12 kWh total) | Anker SOLIX F3800 Plus (up to 6) and F3800 | info |
| Weight | 33 kg | 72.8 lb | info |
| Dimensions | 694 × 295 × 215 mm | Not listed | info |
| Note | EcoFlow says this pack will not be restocked | Not listed | info |
| VoltPick score | 7.5/10 | 6.6/10 | 100% |
Where each one comes out ahead
EcoFlow DELTA Pro 3 Smart Extra Battery
Better published figure on: Capacity, Energy per kg.
What we like
- Doubles a DELTA Pro 3
- Good energy per kg
Watch out for
- DELTA Pro 3 only
- EcoFlow lists it as not being restocked
- No cycle rating on the pack page
Anker SOLIX BP3800 Expansion Battery
No scored spec where it is strictly ahead; its case rests on the strengths below.
What we like
- Up to six per F3800 Plus
- Unlocks 6,000 W generator and Home Power Panel input on the F3800 Plus (Anker)
Watch out for
- Anker's page lists only capacity and weight
Verdict
On published specs, the EcoFlow DELTA Pro 3 Smart Extra Battery scores higher (7.5 vs 6.6). Specs don't capture sound character or feel, so weigh the pros and cons above too.
- Choose the EcoFlow DELTA Pro 3 Smart Extra Battery if this sounds like you: 4 kWh more for the DELTA Pro 3.
- Choose the Anker SOLIX BP3800 Expansion Battery if this sounds like you: 3.84 kWh packs that stack up to six on an F3800 Plus.
- EcoFlow DELTA Pro 3 Smart Extra Battery: EcoFlow: DELTA Pro 3 Smart Extra Battery specs
- Anker SOLIX BP3800 Expansion Battery: Anker SOLIX: F3800 Plus page (BP3800 specs)