The Renogy 100W N-Type Suitcase (RSP100LSC) is the better portable solar panel overall, rated 4.4 to 4.1. The Renogy 100W N-Type Suitcase (RSP100LSC) leads on efficiency and portability. The GRECELL 100W Portable (SP-100) wins on value. The GRECELL 100W Portable (SP-100) costs $35.01 less ($109.98 vs $144.99).
For owners of small power stations who value a sturdy, long-warranty 100 W panel from a major brand. Shoppers chasing the lowest price per watt or USB charging can do better.
Amazon $144.99A dependable, low-voltage 100 W briefcase panel for small power stations, with adapters for most older barrel and Anderson inputs. Owners of XT60 stations should budget for an adapter.
Amazon $109.98Prices were last checked October 22, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Each factor is scored 0-100 against the same fixed reference points for every small portable solar panel; a clear win is highlighted. How we rank explains each one.
| Factor weight | Renogy 100W N-Type Suitcase (RSP100LSC) | GRECELL 100W Portable (SP-100) |
|---|---|---|
| Overall rating | 4.4/5 | 4.1/5 |
| Value 30% | 91 $1.45 per rated watt | 100 $1.10 per rated watt |
| Tested output 20% | 100 not yet tested; estimated 91% of rated watts from 2 tests of Renogy panels and the median of the 11 tested panels | 100 best measured 100% of rated watts (1 test) |
| Portability 15% | 44 11.3 W per lb (8.9 lb (4 kg)) | 35 10.2 W per lb (9.8 lb (4.5 kg)) |
| Durability 15% | 100 IP67, 3-year warranty | 50 IP rating and warranty not published (neutral score used) |
| Efficiency 10% | 97 24.8% claimed efficiency | 75 23.5% claimed efficiency |
| Features 10% | 55 built-in kickstand, series/parallel | 55 built-in kickstand, series/parallel |
No independent test published yet.
| Tested by | Measured peak | Of rated | Conditions |
|---|---|---|---|
| The Gadgeteer | 100 W | 100% | Reviewer saw the wattage ‘jump right to 100+ watts’ and hold there on a winter day, kickstands angled for the low sun, charging a GRECELL T-500 power station; metering method not stated. Review published December 2022. |
| Renogy 100W N-Type Suitcase (RSP100LSC) | GRECELL 100W Portable (SP-100) | |
|---|---|---|
| Output | ||
| Rated power | 100 W | 100 W |
| Tested output | Not tested (estimated 91%) | 100 W (100%) |
| Efficiency | 24.8% (cell efficiency per Renogy's spec table, which lists module efficiency as 15.2%; marketing copy rounds it to 25%) | 23.5% (cell efficiency per GRECELL's SP-100 spec table (grecell.com product feed)) |
| Cells | Monocrystalline (N-type, 16BB) | Monocrystalline |
| Bifacial | No | No |
| Electrical | ||
| Open-circuit voltage (Voc) | 21.6 V | 23.9 V |
| Voltage at max power (Vmp) | 18.7 V | 20 V |
| Short-circuit current (Isc) | 5.8 A | 5.2 A |
| Current at max power (Imp) | 5.4 A | 5 A |
| Series / parallel | Yes | Yes |
| Connections | ||
| Output connector | MC4 | MC4 |
| Cables included | - | MC4 to Anderson cable, MC4 to DC5521 cable, DC5521 to DC5525 adapter, DC5521 to DC7909 (8 mm) adapter, DC5521 to DC3515 adapter |
| USB ports | None | - |
| Build | ||
| Weight | 8.9 lb (4 kg) | 9.8 lb (4.5 kg) |
| Folded size | 20.6 x 24.6 x 1.6 in (523 x 625 x 40 mm) | 25.2 x 21.1 x 2.5 in (640 x 536 x 65 mm) |
| Unfolded size | 1048 x 625 x 20 mm | 50.55 x 21.1 x 0.2 in (1284 x 536 x 5 mm) |
| Kickstand | Yes | Yes |
| Water resistance | IP67 | - |
| Warranty | 3 years | - |
| Output warranty | 3-year power output warranty | - |
