At Amazon, get this PopSockets PowerPack 5,000mAh MagSafe Wireless Power Bank for $21. It’s the best price we could find by $19, The 5,000mAh battery provides up to one full charge for a phone and attaches magnetically for wireless charging. It is not compatible with non-MagSafe, silicone, or textured cases. Shipping is free. Buy Now at Amazon