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Folded solar panel with digital ammeter display and carabiners

PISKEKAT

PISKEKAT Solar Panels Charger Digital Ammeter BigBlue 28W SunPower Camping Solar

SKU CH-95HJ-HCBCC

A foldable 28 W solar panel with a built-in digital ammeter and dual USB ports delivering up to 5 V/4 A for phones and tablets

  • TypeOther
  • Real-time current monitoring with built-in digital ammeter
  • Up to 24% conversion efficiency from SunPower solar panels
  • Auto-restart charging within 30 seconds after cloud cover clears
  • Dual USB ports deliver up to 5V/4A combined output
  • Foldable design with four carabiners for easy outdoor transport

Portable solar charger with digital ammeter

The PISKEKAT BigBlue 28W SunPower panel is a foldable solar charger built for campers, hikers and travellers who need to keep phones, tablets and other 5 V USB devices powered away from mains electricity. It combines four high-efficiency cells with a built-in ammeter so you can see the real-time charging current.

24 percent conversion efficiency

SunPower cells reach a 24 percent conversion rate and the smart IC restarts charging within 30 seconds after cloud cover clears. The PET polymer surface is rated IPX4 waterproof, handling splashes and light rain during outdoor use. Dual USB ports share a 5 V 4 A total output while each port can deliver up to 2.4 A.

Replaces bulky power banks for multi-day off-grid

This panel suits users who previously relied on large capacity power banks but want indefinite runtime without recharging from the wall. It is not for buyers who need higher voltage outputs, built-in battery storage or laptop charging capability.

Highlights

  • Real-time current monitoring with built-in digital ammeter
  • Up to 24% conversion efficiency from SunPower solar panels
  • Auto-restart charging within 30 seconds after cloud cover clears
  • Dual USB ports deliver up to 5V/4A combined output
  • Foldable design with four carabiners for easy outdoor transport

Specifications

TypeOther

Questions about this item

How do I set up the BigBlue 28W panel so the digital ammeter reads correctly?

Unfold the panel, clip the four carabiners to a pack or tent facing the sun, plug your device into a USB port, and watch the ammeter; it shows real-time current which varies with sunlight, cable, and the device's own input limit.

What upkeep will the SunPower cells and PET surface need over time?

Wipe the PET polymer face with a damp cloth when dusty, keep the fold hinges free of grit, and store the unit dry; the IPX4 rating handles splashes but not immersion.

At what point does heat or sun-angle drop the 24% conversion efficiency during a long charging session?

Efficiency peaks at 24% in direct sun; if clouds pass, the smart IC pauses charging and restarts within 30 seconds once light returns, so sustained output falls only when the sun angle drops too low.

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