Aukey 28W USB Solar Charger | $52 | Amazon | Promo code AUKEYSC3
Aukey 21W USB Solar Charger | $42 | Amazon | Promo code AUKEYSC4

Solar USB chargers are great for camping trips, but they can also give you peace of mind if you’re ever stuck in a situation without electricity for any extended period. Two different models from Aukey are on sale today (a 28W model and a 21W model), just be sure to note the promo codes.