Last updated September 24, 2026. Honest availability note: Explorer 300 still has a live Jackery US PDP (293 Wh). Explorer 300 Plus (JE-300B) remains documented in Jackery’s official manual, but the historical “300 Plus” storefront URL may now surface Explorer 300 v2—confirm the model sticker before you buy. Specs below are from Jackery PDP / JE-300B manual—not Boom tests.
Nearly identical Wh on paper (~290 Wh class), different jobs: classic Explorer 300 is the lighter dual-AC day pack; 300 Plus is the LFP / app-era small box with 100 W USB-C.
Quick decision
- Pick Explorer 300 when you want ~7.1 lb carry, two pure-sine AC outlets, 300 W / 500 W surge (Jackery US), and a simpler non-app box.
- Pick Explorer 300 Plus (JE-300B) when you want maker-marketed LFP, dual USB-C (up to 100 W class), app/Wi‑Fi/Bluetooth features in the manual, and the longer 3+2 warranty path Jackery documents for that model.
Check Jackery Explorer 300 (Jackery US) · Check Jackery 300-class page (Jackery US)
Decision table (manufacturer-stated)
| Spec | Explorer 300 | Explorer 300 Plus (JE-300B) |
|---|---|---|
| Capacity | 293 Wh | 288 Wh |
| AC output | 300 W continuous / 500 W surge (Jackery US) | 300 W rated / 600 W surge (manual) |
| Chemistry | Lithium-ion; Jackery cites 800 cycles to 80% | LFP marketed for this Plus generation; JE-300B manual capacity line |
| Weight | ~7.1 lb | ~8.27 lb / 3.75 kg |
| USB-C | 1× PD 60 W (in/out on Jackery US) | 2× USB-C; up to 100 W on the PD port (manual) |
| AC outlets | 2× pure sine | 1× AC (JE-300B manual / photos) |
| Wall recharge claim | ~2.5 h with 90 W wall + 60 W USB-C together (Jackery US) | Fast wall / USB-C path (confirm live listing for JE-300B vs 300 v2) |
| Solar claim | ~5 h class / ~3.5 h to 80% with SolarSaga 100 W (Jackery US) | USB-C / DC solar path per manual; times vary by panel |
| App / smart | Not app-first on Jackery US PDP | Jackery App; Wi‑Fi/Bluetooth icons in manual |
| Warranty (as listed) | 2+1 years on official-site path (Jackery US) | 3+2 years path documented for 300 Plus |
Sources: Jackery Explorer 300 US, Jackery Explorer 300 Plus manual (JE-300B).
Who should buy / who should skip
Buy Explorer 300 if…
- You want two AC outlets and the lightest ~293 Wh Jackery still listed new.
- Budget matters more than LFP cycle marketing.
Skip Explorer 300 if…
- You need 100 W USB-C laptop charging and app monitoring—shop 300 Plus / 300 v2 class instead.
Buy 300 Plus if…
- You can still source a true JE-300B (or accept that the cart may offer 300 v2 with its own LFP / UPS story—read the sticker).
Skip 300 Plus if…
- The live Jackery cart only offers 300 v2 and you specifically needed JE-300B documents for insurance/SKU matching.
- You need two AC outlets in one small box—classic 300 wins that port count.
Failure modes
- SKU drift: “300 Plus” URLs morph to 300 v2. Buy by model number.
- Wh lookalike trap: 293 vs 288 Wh is noise; chemistry, ports, and warranty are the deltas.
- Overload: neither is a microwave station—stay under published continuous AC.
Related
- Jackery alternatives
- CPAP backup battery (only if your CPAP watts fit a ~300 W station)
Search Jackery Explorer 300 on Amazon · Search Jackery Explorer 300 Plus on Amazon
Robert DeWitt writes about off-grid power gear for Off Grid Power Boom. Based in Arizona, he uses portable power stations, solar panels, and battery systems regularly in extreme heat—focusing on practical runtime, charging speed, reliability, and real-world usability for camping, RV trips, and home backup.
Editorial focus: portable power stations & solar generators, solar panel setups, batteries/inverters, and off-grid preparedness.