500w Foldable Solar Panel
500W Flexible Foldable Solar Panel PN-FR500B
500W foldable solar panel PN-FR500B: 18 V or 36 V, 10.6 kg, folds to 600 × 610 × 65 mm. HPBC sewn ETFE/PVDF build. Request a quote.
Specifications
- Maximum Power (Pmax)
- 500 W
- Maximum Power Voltage (Vmp)
- 18.0 V / 36.0 V
- Maximum Power Current (Imp)
- 27.8 A / 13.9 A
- Open-circuit Voltage (Voc)
- 22.5 V / 45.0 V
- Short-circuit Current (Isc)
- 29.6 A / 14.8 A
- Unfolded Size
- 2730 × 1195 × 25 mm
- Folded Size
- 600 × 610 × 65 mm
- Weight
- 10.6 kg
The Polynet PN-FR500B is a 500W portable foldable solar panel offered in an 18 V or a 36 V configuration, unfolding to 2730 × 1195 × 25 mm, folding to 600 × 610 × 65 mm and weighing 10.6 kg.
It is the middle rating in the series, sized for a typical motorhome or caravan load of a compressor fridge plus lighting and device charging. Whether it covers a given trip depends on the load profile, the bank size and irradiance, so check the numbers rather than the rating.
Product Overview
The PN-FR500B is part of the Polynet sewn foldable solar panel series, which shares one HPBC cell platform, ETFE/PVDF encapsulation and sewn construction across the 400 W, 500 W and 600 W ratings. Polynet Solar Solutions is the solar business line of Hefei Polynet Products Co., Ltd., supplying customized solar panels and integrated solar energy solutions to B2B buyers.
Folded, the PN-FR500B measures 600 × 610 × 65 mm and weighs 10.6 kg; open, 2730 × 1195 × 25 mm. It folds along the hinge lines between laminated panel sections into a soft case for transport, and the output lead leaves the panel on the end section with the termination set by the order.
General Specifications
Nameplate and mechanical values for the PN-FR500B. The two voltage builds are separated in the next table, because that choice shapes the rest of the system.
Parameter | Value |
Maximum Power (Pmax) | 500 W |
Maximum Power Voltage (Vmp) | 18.0 V / 36.0 V |
Maximum Power Current (Imp) | 27.8 A / 13.9 A |
Open-circuit Voltage (Voc) | 22.5 V / 45.0 V |
Short-circuit Current (Isc) | 29.6 A / 14.8 A |
Unfolded Size | 2730 × 1195 × 25 mm |
Folded Size | 600 × 610 × 65 mm |
Weight | 10.6 kg |
Choosing the 18V or the 36V Build
The catalogue lists this model at 18.0 V / 36.0 V Vmp. That is one model offered in two builds: confirm which one you need, along with the connector and cable termination, at quotation. Do not mix the two voltage builds inside one array string.
Parameter (STC) | 18 V build | 36 V build |
Maximum Power (Pmax) | 500 W | 500 W |
Maximum Power Voltage (Vmp) | 18.0 V | 36.0 V |
Maximum Power Current (Imp) | 27.8 A | 13.9 A |
Open-circuit Voltage (Voc) | 22.5 V | 45.0 V |
Short-circuit Current (Isc) | 29.6 A | 14.8 A |
Cell Platform and Construction
Property | Value |
Cell Type | HPBC mono-crystalline |
Cell Efficiency | 26% |
Encapsulation | ETFE / PVDF |
XT60, MC4, GX16 and Anderson connectors are listed for the series, with custom specifications available. On the 18 V build Isc is 29.6 A, so plan the array-side connector and cable for at least 37 A (1.25 x Isc); note that XT60 and GX16 connectors are commonly rated well below that, so specify a higher-current connector for the 18 V build. The 36 V build has 14.8 A Isc and needs at least 18.5 A.
Where the 500W Rating Pays Off
500W sits between the one-person 400W and the multi-day 600W. In practice it is the touring rating: a vehicle with a compressor fridge and a roof already occupied by vents, a fan or a skylight.
Situation | What the 500W rating changes |
Motorhome and caravan touring | Sized for the composite touring load of a fridge duty cycle plus lighting and device charging; confirm against your own daily kWh and bank before fixing the array size. The panel stays on the ground so the vehicle can park in shade. |
Camper-van conversions | 10.6 kg and 65 mm folded: one person can carry and re-position it. Measure the locker opening against 600 × 610 × 65 mm before assuming it fits. |
Long-weekend off-grid | A middle step for long weekends off hook-up on moderate loads, without the 13 kg pack. Confirm daily kWh and bank capacity before relying on it for multi-day trips. |
Two-market distribution | One model covering 12 V-bank and 24 V-bank customers, if you stock both builds. |
500W Against the Rest of the Series
The three ratings share one construction family; the decision usually comes down to packed envelope and daily energy budget rather than to cell technology.
Model | Folded size | Weight | Configuration | Choose it when |
PN-FR400B | 610 × 600 × 40 mm | 8.1 kg | 18 V or 36 V | one-person handling matters most |
PN-FR500B | 600 × 610 × 65 mm | 10.6 kg | 18 V or 36 V | touring loads, mid-weight |
PN-FR600B | 600 × 615 × 80 mm | 13 kg | 36 V | multi-day loads, NMOT published |
Controller and Bank Sizing
The two builds behave very differently downstream: the 18 V build carries almost twice the current of the 36 V build, which moves the cable and connector decision ahead of the controller choice.
Sizing check | What changes between the two builds |
Configuration decision | Choose 18 V for a 12 V bank and 36 V for a 24 V bank or an MPPT with a 36 V nominal PV input. Confirm the build at quotation; the two are not interchangeable within one string. |
PV input voltage | 36 V build: Voc 45.0 V at STC, rising in cold cells. 18 V build: Voc 22.5 V. Size the controller's maximum PV input against the cold-condition figure. |
Battery-side charge current | MPPT controllers are rated on output current. Allowing about 95% conversion at 13.5 V / 27 V, 500 W gives roughly 35 A into a 12 V bank and 18 A into a 24 V bank. Check the controller's output rating, not just its PV input limit. |
Connector and cable | Conductor sizing follows Isc, not Imp. The 18 V build has 29.6 A Isc, so plan for at least 37 A on the array side; the 36 V build has 14.8 A Isc, so at least 18.5 A. |
Handling Details
The 500W pack sits in the middle of the family. The folded envelope often decides the sale, so it is worth measuring before anything else.
Part | What it does |
Rear bracket | Holds the panel at a working angle; set that angle before connection. |
Rubber-wrapped handle | Single-person carry of the 10.6 kg folded case. |
Hanging hole | Tie-off point for slopes, wet ground and vehicle-side mounting. |
Zippered cable bag | Holds the lead and adapters; keeps the connector out of the mud. |
B2B Supply and Customization
The PN-FR500B is designed for motorhome and caravan outfitters, camper-van converters, distributors and integrators. Because it is offered in two voltage builds, it can serve both 12 V and 24 V customer bases from one model line, with OEM/ODM and private-label options quoted per project.
Topic | What applies to this model |
Two-build stocking | Order 18 V for 12 V-bank customers and 36 V for 24 V systems; confirm both at quotation. |
OEM / ODM and private label | PN-FR500B connector, cable length and packaging configurable; quoted per project. |
Documentation | PN-FR500B datasheet values are as published; documentation requirements are confirmed at quotation. |
Order terms | PN-FR500B carton quantity, freight data and warranty terms are confirmed at order for the build specified. |
Packing and What Ships With It
The panel ships folded with its integral handle. Because the 18 V and 36 V builds use different terminations, the accessory set is confirmed against the order rather than assumed from the catalogue.
Item | Note |
Unit packing | Folded panel with integral handle |
Carton | Packing configuration confirmed with the quotation |
Output lead | Matched to the voltage build ordered |
Freight data | Carton quantity, gross weight and CBM confirmed with the quotation |
Technical FAQ
Which build should I order, 18V or 36V?
Match the build to the battery bank and the controller. The 18 V build suits a 12 V bank and has 29.6 A Isc, so the array-side cable and connector should be rated at least 37 A (1.25 x Isc). The 36 V build suits a 24 V bank and has 14.8 A Isc, so at least 18.5 A. Confirm the choice at quotation.
Why is the 18V build's current so much higher than the 36V build's?
Same 500 W, half the voltage, twice the current: 29.6 A Isc against 14.8 A Isc. Sized at 1.25 x Isc that is about 37 A on the array side for the 18 V build against 18.5 A for the 36 V build, which is why the 36 V build is easier to terminate over a long run.
How does 500W compare with the 600W model?
It is 2.4 kg lighter and 15 mm thinner folded, with 100 W less output. The 600W adds headroom for multi-day fridge loads and its datasheet carries an NMOT column; the 500W is the easier touring panel to handle.
Does the panel fold flat enough for a camper-van garage?
The folded envelope is 600 × 610 × 65 mm at 10.6 kg. Measure the locker opening against that envelope; the 400W model is thinner at 40 mm if the locker is the constraint.
What about certification and warranty?
Compliance documentation requirements are confirmed with the quotation, and warranty terms follow the build. Tell us the destination market so the right standards are checked.
Request a Configuration-Specific Quote
Tell us the bank voltage, the locker or stowage opening and the connector your equipment uses. We will confirm the 18 V or 36 V build, quote per watt for your volume, and state the battery-side controller current the build needs.