Drawing · 6.5 × 6.3 × 9.5 in · 9.1 lb
- Capacity
- 288 Wh
- AC output
- 300 W
- Surge
- 600 W
- Solar input
- 100 W
- Weight
- 9.1 lb
Maker price$329.99 at Anker SOLIX, sold out when checked Oct 11, 2026
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Dabbsson · Compact (under 600 Wh)
Dabbsson 300E
A compact unit, 298 Wh, 300 W (600 surge), 9.4 lb, $199 $299 at Dabbsson, checked Oct 11, 2026 ($0.67 per Wh). By our sizing it holds phones and USB lights, but none of the six uses we size.
From the maker's published figures and our own calculations; we have not tested it ourselves.
Estimated runtimehours24-hour dial
Rated capacity
298 Wh
298 Wh × 0.85 ÷ device watts. An estimate, not a measured test. Startup and connections need checking.
Drawing · 11.7 × 7.2 × 7 in · 9.4 lb
Dabbsson 300E $199 $299 at Dabbsson, checked Oct 11, 2026
Capacity 298Wh
AC output 300W
Surge 600W
Chemistry LiFePO4
Rated cycles 4,000 to 80%
Weight 9.4lb
Max solar input 120W
Price per Wh $0.67
Should you buy it?
Not for: a day of home backup (too little capacity: needs 2,323 Wh and 1,351 W at startup); a night of CPAP (too little capacity: needs 599 Wh and 104 W at startup); two nights of camping (too little capacity: needs 2,066 Wh and 157 W at startup); a day in an RV (too little capacity: needs 648 Wh and 156 W at startup); a working day in a van (too little capacity: needs 1,674 Wh and 189 W at startup); a laptop and two phones (too little capacity: needs 396 Wh and 60 W at startup).
Choose it for a 5-year warranty against 2 and a 4.6 lb lighter carry: $70 less than the Pecron E500LFP.
Choose the Pecron E500LFP instead if you want the most battery for the money: $0.47 per Wh against $0.67, $70 more, 4.6 lb heavier; you give up warranty years (2 against 5).
About 253 Wh reaches the AC outlets after the 0.85 loss allowance (an estimate, not a measurement). At $0.67 per watt-hour, compare its cost with the charging speed and carry weight you need. It stores 31.7 Wh per pound. We list 28 other models in its size class; the four nearest in capacity are compared below.
What it runs, and for how long
Hours = capacity × 0.85 ÷ device watts, with the draws from the device table.
| Device | Draw W | Hours | Output and surge cover it? |
|---|---|---|---|
| CPAP machine (no heated humidifier) | 45 | 5.6 | yes |
| CPAP machine (with heated humidifier) | 53 | 4.8 | yes |
| Refrigerator (full-size, ENERGY STAR, ~18 cu ft top freezer) (average draw, compressor cycling) | 41 | 6.1 | no |
| Laptop (MacBook Air, charging) (charger rating, continuous) | 40 | 6.3 | yes |
| Wi-Fi router | 24 | 10.6 | yes |
| Starlink Mini (router built in) | 33 | 7.8 | yes |
| TV, 50-inch LED / Crystal UHD | 89 | 2.8 | yes |
| Camp LED light set (4 chainable lights) | 6 | 40.2 | yes |
"Yes" means its continuous output covers the draw and its surge rating covers the startup figure we use, by arithmetic on ratings, not a test. Startup figures: the CPAP with its humidifier, 104 W at startup, from ResMed's peak figure; the refrigerator, 1,300 W startup allowance, from a larger 27 cu ft Whirlpool's tech sheet. Your own appliance's label or manual has its own.
Sockets and size
- Two AC outlets, 300 W in total, 600 W surge
- One USB-C port, up to 60 W from one port
- Two USB-A ports
- Two 12 V outlets
How many of each socket and their limits, from the maker's spec sheet; it does not say where each one sits on the unit. It weighs 9.4 lb.
At a glance
How it compares with the other 28 compact models, on the makers' figures. We don't boil it down to one score; see how we pick.
| What it can power | Covers none of the uses we size. Output and surge cover 13 of the 17 devices in our list, on the startup figures we use |
|---|---|
| Price per Wh | $0.67 per Wh, 9th lowest of 29 compact units |
| Portability | 9.4 lb, 16th lightest of 28 compact units |
| Recharge speed | 120 W of solar input: at least 2.5 hours of full sun at that limit to refill (an ideal minimum, not clock time); 100 W from the wall |
| Chemistry and cycle life | LiFePO4, rated 4,000 cycles to 80% |
| Expandability | No expansion stated |
Full spec sheet
| Capacity | 298 Wh |
|---|---|
| Chemistry | LiFePO4 |
| Rated cycle life | 4,000 to 80% |
| Expandable | – |
| Continuous AC output | 300 W |
|---|---|
| Surge (peak) output | 600 W |
| AC outlets | 2 |
| USB-C ports / highest output | 1 / 60 W |
| USB-A ports | 2 |
| 12 V outputs | 2 |
| Wireless charging pad | – |
| UPS / EPS switchover | – |
| Max AC input | 100 W |
|---|---|
| Wall recharge time | – |
| Max solar input | 120 W |
| Stated solar recharge time | – |
| App control | yes |
| Weight | 9.4 lb (4.3 kg) |
|---|---|
| Dimensions | 11.7 x 7.2 x 7 in (297 x 183 x 178 mm) |
| Wh per lb | 31.7 |
| Release year | – |
| Warranty | 5 years |
| List price | |
|---|---|
| Store price | $199 |
| Price per Wh | $0.67 |
Before using the battery's cycle rating to judge value, read what LiFePO4 versus NMC means for lifespan and weight.
What the output figures mean for your devices: running and surge watts, and which units can stand in for a UPS.
Which maker panels its solar input takes, how to wire them and the hours of sun to refill it: the 300E solar setup.
Alternatives at this size
Listed smallest to largest by capacity; this unit is among them.
Select up to three models to compare.
Drawing · 9.1 × 5.2 × 7.8 in · 7.1 lb
- Capacity
- 294 Wh
- AC output
- 300 W
- Surge
- 500 W
- Solar input
- Not published
- Weight
- 7.1 lb
Maker price$289 at Jackery, checked Oct 9, 2026
Drawing · 11.3 × 7.7 × 6.7 in · 13.7 lb
- Capacity
- 297 Wh
- AC output
- 350 W
- Surge
- 600 W
- Solar input
- 200 W
- Weight
- 13.7 lb
Maker price$349.95 at Goal Zero, sold out when checked Oct 11, 2026
Drawing · 11.7 × 7.2 × 7 in · 9.4 lb
- Capacity
- 298 Wh
- AC output
- 300 W
- Surge
- 600 W
- Solar input
- 120 W
- Weight
- 9.4 lb
Maker price$199 $299 at Dabbsson, checked Oct 11, 2026
Drawing · 9 × 7.7 × 6.2 in · 8.4 lb
- Capacity
- 299 Wh
- AC output
- 300 W
- Surge
- 360 W
- Solar input
- 100 W
- Weight
- 8.4 lb
Maker price$499 at 4Patriots, sold out when checked Oct 11, 2026
No models match these filters.
| Model | Wh | Output W (surge) | lb | Solar input W | Chemistry | Cycles | Price at maker $ | Price per Wh | Store |
|---|---|---|---|---|---|---|---|---|---|
| Anker SOLIX C300 | 288 | 300 W (600 surge) | 9.1 | 100 | LiFePO4 | 3,000 to 80% | $329.99sold out when checked Oct 11, 2026 | $1.15 | See it at Anker SOLIX Check price on AmazonAmazon's price may differ |
| Jackery Explorer 300 | 294 | 300 W (500 surge) | 7.1 | – | Lithium-ion (type not stated) | 800 to 80% | $289checked Oct 9, 2026 | $0.98 | See it at Jackery Check price on AmazonAmazon's price may differ |
| Goal Zero Yeti 300 | 297 | 350 W (600 surge) | 13.7 | 200 | LiFePO4 | 4,000 to 80% | $349.95sold out when checked Oct 11, 2026 | $1.18 | See it at Goal Zero Check price on AmazonAmazon's price may differ |
| Dabbsson 300E | 298 | 300 W (600 surge) | 9.4 | 120 | LiFePO4 | 4,000 to 80% | $199 | $0.67 | Check price on AmazonAmazon's price may differ See it at Dabbsson |
| 4Patriots Patriot Power Sidekick Solar Generator | 299 | 300 W (360 surge) | 8.4 | 100 | LiFePO4 | 2,000 | $499sold out when checked Oct 11, 2026 | $1.67 | See it at 4Patriots Check price on AmazonAmazon's price may differ |
Check price on AmazonAmazon's price may differ See it at Dabbsson Every Dabbsson model we cover Does it hold enough for your devices?
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Before connecting panels, compare your array's cold-morning open-circuit voltage and short-circuit current with this model's solar-input limits in its manual.
Sources
- Specs: Dabbsson product page
- Price: Dabbsson product page, checked Oct 11, 2026
- How the figures and picks are made