BEST USB Power Bank / Battery Pack - What to buy??

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We have compared over 25 devices and show you which are fastest & most stable options for mobile and in office use.

BEST overall: http://geni.us/thebest
Best compact: http://geni.us/bestcompact
Best midsize: http://geni.us/BestMidsize
Most power: http://geni.us/beefcake
Best Style: http://geni.us/USBstyle
Special mention - drone battery adapter: http://geni.us/04NsD

Large units - ~20,000mah
1. http://geni.us/CWzCbkQ - Zendure ZDPX6PD - stated 20,100mah - got 12,140mah - 5 outputs, 45w in and out, low volt support, USB C hub, pass through power.
2. http://geni.us/ioxfc Ravpower Super C - stated 26,800mah - got 19,850mah - 3 amp out per port, dual input, 30w direct power, highest output tested
3. http://geni.us/dU8aTRr Zendure 6PD - stated 20,100mah - got 13,400mah - 45w in and out, 100% rugged, slim
4. http://geni.us/5BkiKI Zendure A8QC - stated 20,100mah - got 16,200mah after 2 years - QC3, 100% rugged, pass through power
5. http://geni.us/WvnEzn Anker powercore 26800 - stated 26,800mah - got 16,500mah - 3 amp out per port, dual input, no power direct tech
6. http://geni.us/Hw1B Technipro - stated 26,800mah - got 12,800mah - 3 amp out per port, dual input, cheaper

MidSize ~ 10,000mah - BEST to WORST
1. http://geni.us/LHNzs Yoobao slim - Stated 10,000mah - got 7553mah - 3 amp out, nice build, great value
2. http://geni.us/iOfOF48 Anker powercore QC+ - Stated 10,400mah - got 5700mah after 18 months - great but only 1 output
3. http://geni.us/MEOW Yoobao Cat - Stated 10,400mah - got 6220mah - meow
4. http://geni.us/uDVAXZ Moshi IonSlim 10K - Stated 10,000mah - got 5,000mah - Power direct, great styling, low power, expensive
5. http://geni.us/3EGGS Ainope - Stated 10,000mah - got 6300mah - less than 3 eggs….. Not bad really
6. http://geni.us/JackeryGiant Jackery Giant - Stated 12,000mah - got 6184mah - aluminum, cheap but not much power
7. http://geni.us/solarbattery RavPower solar - Stated 10,000mah - got 6150mah - Rugged and solar - pricey
8. http://geni.us/TJDhb Zimmi - Stated 10,000mah - got 6300mah - USB C, slow discharge, flimsy

Small Units (below 10,000mah) - BEST to WORST
1. http://geni.us/MN3SpU Anker Powercore Mini+: Stated 3350 - got 3200mah - great quality and power to size ratio
2. http://geni.us/RZFgA Moshi Ion 3k: - best quality but pricey!
3. http://geni.us/PoEq GEMS: Stated 2000mah - got 1439mah
4. http://geni.us/xiqQ MyCharge Wireless: Stated 2000mah - got 1908mah - has wireless charging
5. http://geni.us/qHnaZ EMIE Puppy: Stated 5200mah - got 3294mah - CUTE and high power
6. http://geni.us/TjME LB1: Stated 2200mah - got 1580mah - great value
7. http://geni.us/NjiWE URGE Basics: Stated 2000mah - got 1165mah
8. http://geni.us/z0CBX Mediabridge: Stated 2200mah - got 1325mah - built in cables but overpriced
9. http://geni.us/J3eS5f ZeroLemon: Stated 2600mah - got 1341mah
10. http://geni.us/t4mTxI9 Ifrogz: Stated 700mah - got 551mah - gets hot!
11. http://geni.us/aU0u Rayovac: Stated 2000mah - got only 470mah!
12. http://geni.us/daB76 Koyu: SKIP IT