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TLDR Review: BigBlue 28W Solar Charger

Item: BigBlue 28W Solar Charger
Author: ShopSavvy

By ShopSavvy Team

Published: August 29th, 2025

Pros

•Successfully charged a Galaxy S9 from 65% to 87% in 16 minutes under direct sunlight.
•Demonstrated durable performance, even when submerged briefly in water or dropped from a height.
•Foldable and compact, with a size akin to a small textbook, ideal for portability.
•Proven effective in recharging multiple devices like phones, battery banks, and camping lanterns during outdoor adventures.
•Ecriendly solution suitable for remote locations without electrical access.
•Good build quality and sturdiness, making it reliable for camping or outdoor conditions.

Cons

•Slower charging speeds might not support fast charging for newer devices.
•Actual output may only deliver around 14 watts, despite an advertised 28 watts.
•Setup can be finicky to ensure optimal sunlight angle for efficient charging.
•Lacks a clear indication of charging strength, potentially confusing in specific scenarios.

Bottom Line

This product is a solid choice for campers and outdoor enthusiasts looking for a reliable, eco-friendly solar charging solution. While it proves durable and effective for various devices, its charging speeds might lag for those expecting fast charge capabilities. For users needing precise charging feedback, consider exploring the recommended upgraded model with an ammeter.

Lowest at any Popular Retailer

$59.49 at Amazon

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