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Are dry cell powered mobile batteries really usable? They are said to be effective in saving your smartphone during a power outage, but to what percentage can they charge your smartphone? This time, we conducted a thorough test of "7 models x 4 types of batteries" without any bias from the manufacturers. Smartphones are indispensable in emergencies, so it is important to prepare for power outages. The item you want to prepare for such times is a mobile battery that uses dry cell batteries. However, if you can't use it properly, it's no use, so we will introduce you to the models that can be used and those that cannot be used, and the results of our detailed test. ----------- ■Battery-powered mobile batteries used in this test ①Panasonic: BQ-CC87 Rakuten: https://a.r10.to/haAA76 Ama: https://amzn.to/3g0AgBg ②Panasonic: BQ-CC91 Rakuten: https://a.r10.to/hyFC5P Ama: https://amzn.to/2VRQPZu ③Panasonic: BH-BZ40 Rakuten: https://a.r10.to/hyinnR ④Rasta Banana Rakuten: https://a.r10.to/hNoWL3 Ama: https://amzn.to/2XrNMaT ⑤Green House Rakuten: https://a.r10.to/hVdPRM Ama: https://amzn.to/2VRS5Mc ⑥air-J Rakuten: https://a.r10.to/hDAtk8 Ama: https://amzn.to/3AFaKJP 7. Implink (Ozma) Rakuten: https://a.r10.to/hahHvX Ama: https://amzn.to/2VVnope ------------------ [Video contents] Battery-powered mobile battery 00:00 Title call 00:17 Important power outage countermeasures in emergencies… this time it's a "storage battery" extra edition 00:42 What is a "battery-powered mobile battery"? 01:15 Two types of mobile batteries ∟ 01:42 Characteristics of "normal" mobile batteries ∟ 02:32 Characteristics of battery-powered mobile batteries04:14 Types of equipment tested ∟ 05:02 Types of dry cell batteries ∟ 05:23 About smartphones (model and capacity) Testing procedure ∟ 06:17 ① Drain the smartphone battery to 20% ∟ 06:44 ② Connect the mobile battery and begin charging ∟ 07:18 ③ Stop charging when it reaches 80%08:17 About the seven models tested---------- ■Test09:41 ① Panasonic: BQ-CC87 ∟ 14:11 Will leaving a used battery overnight revive it? 15:52 ② Panasonic: BQ-CC91 17:44 ③ Panasonic: BH-BZ40 21:26 ④ Rasta Banana 26:27 ⑤ Green House 28:35 ⑥ air-J 29:52 ⑦ Implink (Ozma) ∟ 31:36 Take care when inserting the batteries 32:40 Test results and list of functions ---------- ■ Various functions and supplements 34:22 About the automatic stop function (if there is no automatic stop function) 37:20 About the automatic stop function (if there is) 41:33 Which battery should I choose...? ∟ 43:55 About Eneloop46:10 Changes in voltage and current48:11 Precautions when using a voltage/current meter---------- ■Summary49:58 How to choose based on case and purpose (personal opinion) ∟ 50:04 ① I definitely want a charging function!! ∟ 50:48 ② I want one for home/emergency bag ∟ 51:55 ③ I want one that's small, light, and powerful!! 53:33 Be sure to put a battery-powered mobile battery in your commuter bag or emergency bag! 54:10 End call---------- 【■Related sites】 "Sorabe.jp" General disaster prevention information sitehttps://sonaeru.jp/ "Twitter" Delivering the latest disaster prevention and disaster information! / sonaeru "Voicy" Disaster prevention that won't kill you! Sonaeru Radiohttps://voicy.jp/channel/1387