How to make a simple power bank at home Just using 4 AA batteries and 4 AA battery holder. It is so simple and easy. Its a emergency charging hack you should know.
Rechargeable Ni-MH batter voltage is 1.2 - 1.4 so using 4 cell in series you will get max 5.5 v which is perfect for charging phone. you don't need any regulated IC.
INDIA
4 AA battery Holder [ Ссылка ]
Rechargeable battery I used [ Ссылка ]
International
4 AA battery Holde [ Ссылка ]
Rechargeable battery I used [ Ссылка ]
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