請教買USB 火牛 用charger 電壓問題

本帖最後由 wallie 於 2021-3-31 20:43 編輯

昨天 charge 10400 power bank 火牛突然 pop 聲燒了, 請問應買多大才安心,? 過去是用電腦 , 但昨日用socket就死, 是overload ? so much voltage for charge. pls advice.
the remaining  3 socket for charging cellphone is fine.

sorry my physics was poor. I dont know how to calculate  4 socket in 1 plug of 13A does it work?  Or only 1 slot in use for power bank for recharge?


many thx

本帖最後由 harryytm 於 2021-4-1 06:57 編輯

The USB power supply you are using should have design problem, a proper USB power supply should have overload and short circuit protection for each USB port and should not fail like this so easily.

You should also take in the factor of charging protocol when buying a USB charger for your power bank, some power bank support Power Delivery(USB-C only) or Quick Charge input to "ask" the power USB charger for more power to accommodate faster charging.

Besides, I also advice you to buy a better quality USB charger for your own safety sake, unless you want your home burn down to ash.

A standard AC socket should be able to take a load of 220V 13A which means 2860W(220 * 13), a USB power supply only have a load of 220V 1.8A which is about 400W.

FYI The equation for power is as follows:
V * A = W

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