Whether you need a lot of extra power, or a lot of extra power, we've found great deals on spacious USB battery packs today on Amazon. These would both be great for long camping trips, plan rides, and power outages, but even if you don't use them often, they're great to keep around just for peace of mind.
Aukey 20000mAh External Battery ($27) | Amazon | Use code Z56QQZKT
Intocircuit 11200mAh Power Castle ($18) | Amazon | Promo code BNZ58Q2H
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