Jackery
Jackery Explorer 300 Plus
288 Wh
300 W output
600 W surge
$299 · lifetime cost n/a — cycle life not rated to the 80% standard
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What it actually runs
Usable energy ≈ 245 Wh after our standard 85% inverter-efficiency assumption. Methodology
| CPAP overnightCPAP, humidifier off (40 W × 8 h) | ~6.1 h continuous · 0.8 days at typical daily use |
|---|---|
| EssentialsFridge + wifi + 3 lights (~190 W continuous) | ~1.3 h continuous · 0.1 days at typical daily use |
| Storm kitFridge + sump pump + lights + phones (~1,000 W) | ~0.2 h continuous · 0.1 days at typical daily use |
| Quick equivalents | ≈ 0 CPAP nights · 2 h of fridge · 12 phone charges |
Solar recharge
The Explorer 300 Plus accepts up to 100 W of solar input — panels beyond that sit idle. To sustain an essentials load (~1,680 Wh/day) off-grid you'd need roughly 470 W of panels, which exceeds this unit’s input cap — it can stretch runtime but not run essentials indefinitely.
Compatible kits: Jackery SolarSaga 100 (100 W) · Jackery SolarSaga 200 (200 W) — proprietary connector; third-party MC4 panels need an adapter.
Specifications
| Capacity | 288 Wh |
|---|---|
| Usable (85%) | 245 Wh |
| AC output | 300 W |
| Surge output | 600 W |
| Max solar input | 100 W |
| UPS switchover | No UPS mode |
| Expandable battery | No |
| Rated cycles | Not published to the 80% standard |
| Third-party solar | Own-brand panels only |
| Lifetime cost | n/a |
Alternatives to consider
- Anker SOLIX C300 — 288 Wh / 300 W at $230 · compare head-to-head →
- EcoFlow RIVER 3 Plus — 286 Wh / 600 W at $279 · compare head-to-head →