When it comes to external USB battery packs, it makes sense to have a big one for flights and conferences, and a pocket sized one for walking around town. Today, you can get both for $20.
- Lumsing 10400mAh Portable Power Bank and Mini 3200mAh Lipstick Size Portable External Battery ($20) | Amazon | Add both to cart and use code V2S8G6LU
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