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Product Overview
The Bioenno Power BSP-28 model 28 Watt Foldable Solar Panel is our original and most popular monocrystalline solar panel featuring both USB and DC output options. Designed for field portability and high performance, this panel allows direct USB charging of devices such as smartphones and tablets and includes a 2.1 mm DC coaxial plug for other power applications. Additionally, the BSP-28 can be chained with another BSP-28 to increase output.
Constructed with high-strength PET polymer laminated solar cells embedded in rugged polyester canvas (PVC fabric), the unit is lightweight, compact, and highly durable. With a folded size comparable to a standard laptop, it’s an excellent choice for off-grid activities, amateur radio operators, surveillance setups, and mobile power needs. This panel was developed in conjunction with the globally adopted .
- Please note: This solar panel does not include a solar charge controller. Only 5V devices such as phones and tablets may be connected directly to the USB output. For battery charging, always use a matching . Do not connect the panel directly to a battery.
- Ordering Info:
Key Features
Dual Output Options
Chainable for Higher Output
Chain two panels for a combined DC output of up to 4A
Maximum combined voltage: 15–18V
Do not chain more than 2 panels!!
Rugged, Lightweight Design
Optimized for Field Use
Engineered for compatibility with BPP-160 Powerpack
Suitable for off-grid, emergency, and communication setups
Important Notes
DO NOT use this solar panel to charge batteries without a matching solar charge controller.
Safe direct connection is limited to USB-charged devices (phones, tablets, etc.).
Chaining is limited to two BSP-28 panels maximum.
Specifications
Maximum Power: 28W
DC Output Voltage (Max): 15–18V
DC Output Current (Max): 1.55A
USB Output Voltage (Max): 5V
USB Output Current (Max): 2.1A
Chained DC Output (Max Voltage): 15–18V
Chained DC Output (Max Current): 4A
Dimensions (Folded): 12 in. x 9.5 in. x 1 in. (304 mm x 241 mm x 25 mm)
Dimensions (Unfolded): 48 in. x 12 in. x 0.22 in. (1219 mm x 305 mm x 6 mm)
Weight: 3.4 lbs. (1.5 kg)
Temperature Range: -4°F to 122°F (-20°C to 50°C)
Policy Information
