BLUETTI Balco 260 vs Jackery SolarVault 3 Pro Max
Technical comparison · All-in-one
Capacity (2.56 and 2.52 kWh), feed-in limit (800 VA) and warranty (10 years) are the same. The two balcony batteries differ in where they mount, wall for the Balco 260 and floor for the SolarVault, and in the power they handle: 2400 vs 4000 W of solar (manufacturer-declared values).
| Parameter | ||
|---|---|---|
| In brief | ||
| Nominal capacity | 2.56 kWh | 2.52 kWh |
| Cell chemistry | LFP (lithium iron phosphate) | LFP (lithium iron phosphate) |
| Cost per kWh | 546.48 €/kWh | 287.7 €/kWh |
| List price | 1399 € | 725 € |
| Weight | 28 kg | 26.5 kg |
| Dimensions (W×D×H) | 47.6 × 26 × 33.63 cm | — |
| How long it lasts | ||
| Battery life cycles | 3650 cicli | 3650 cicli |
| The limit that runs out first | anni di garanzia | anni di garanzia |
| Rated cycles | — | 6000 cicli |
| Capacity at end of cycle life | — | 70 % |
| Warranty | 10 anni | 10 anni |
| The numbers | ||
| Cost of stored energy | 0.15 €/kWh | 0.079 €/kWh |
| Energy density | 91.4 Wh/kg | 95.1 Wh/kg |
| Identity | ||
| Use tier | F2 — Room-sized (1–3 kWh) | F2 — Room-sized (1–3 kWh) |
| Price | ||
| Price | 789 € | ~450–1000 € |
| Universal specs | ||
| Voltage | — | 230 V |
| Category specs | ||
| Depth of discharge | — | 90 % |
| Expandable | Yes | Yes |
| Maximum expanded capacity | 15.36 kWh | 15.12 kWh |
| Battery voltage | 25.6 V | 41.6 V |
| Feed-in limit | 800 VA | 800 VA |
| Inverter included | Yes | — |
| Maximum solar input | 2400 W | 4000 W |
| MPPT trackers | 4 | 4 |
| Grid charging | Yes | Yes |
| Maximum charge power | 1.2 kW | 3.68 kW |
| Dynamic tariffs | Built in | Built in |
| Backup power | EPS (brief interruption) | UPS |
| Backup output | 1200 W | 1600 W |
| Switchover time | — | 20 ms |
| Standby consumption | 4.5 W | — |
| Ingress protection | IP65 | IP65 |
| Mounting | Wall mounted | Floor standing |
| Minimum temperature | -20 °C | -20 °C |
| Maximum temperature | 55 °C | 55 °C |
| Cell heating | Yes | Yes |
| Works without internet | With limitations | With limitations |
| Home Assistant integration | Official | — |
| Declared standards | — | VDE-AR-N 4105, IEC 62619 |
The differences that matter
- Wall mounting vs floor standing → the first frees the floor, the second sits on the ground.
- Solar input 2400 W vs 4000 W → how many panels connect to the 4 MPPT inputs.
- Grid charging 1.2 kW vs 3.68 kW → how long it takes to fill the battery in a cheap-tariff window.
- Backup 1200 W in EPS vs 1600 W in UPS (20 ms) → how many loads stay on in an outage and whether the changeover has a pause.
Which one to choose
Choose BLUETTI Balco 260 if…
you want to keep the floor clear and have a wall to mount the battery on, with a solar array that stays within 2400 W. You accept grid charging at 1.2 kW and, in an outage, 1200 W in emergency mode with a brief pause (EPS).
Choose Jackery SolarVault 3 Pro Max if…
you have up to 4000 W of panels and want to fill the battery from the grid at 3.68 kW during cheap-tariff hours: in theory, without losses, 2.52 kWh takes about 40 minutes, against about 2 hours at 1.2 kW. In an outage it gives 1600 W with continuity (UPS, 20 ms). You accept floor-standing installation.
Where to buy
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