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21w solar charger quick charge technology mppt over voltage current charging protection for smartphone powerbank hiking climb rv
$63$85.58-26.38%
Max. Power:
21w
Number of Cells:
32
Material:
Monocrystalline Silicon
Quantity:
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Features
High-Efficiency 21W Solar Charger with MPPT Technology
Premium monocrystalline solar panels deliver 23% conversion efficiency, ensuring rapid charging even in low-light conditions. Built-in MPPT controller optimizes power output while preventing over-voltage/current damage to devices.
Military-Grade Durability & Smart Protection
Features reinforced nylon fabric with waterproof PU coating (IPX4 rated) and shockproof corners. Integrated safeguards include temperature control, short-circuit prevention, and auto-reset fuses for 24/7 reliability.
Universal Compatibility & Portable Design
Equipped with dual USB-A ports (QC3.0) supporting simultaneous charging for smartphones, power banks, and GPS devices. Ultra-lightweight (450g) with foldable design and carabiner clip for hiking, camping, or RV trips.
Industry-Leading Warranty
Backed by a 2-year global replacement guarantee. Bulk order discounts available for wholesalers—direct factory pricing with no middlemen.
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