Batteries System/Method

Hello, my accuplus rechargeable batteries only last 8 hours approximately. That’s why I started using non-rechargeable batteries and I change them every 7 days approximately. But I would like to know Where can I buy batteries that last much longer? and good pocket chargers? (I saw “Power One Pocket charger” on Amazon but doesn’t has good reviews)

Also, I would like very much to listen to the methods you use so that you never run out of batteries (for instance, maybe there are people only use non-rechargeable batteries and carry a case on the keychain with 2 extra batteries. Maybe there people who do the same but with rechargeable batteries.)

I only use non rechargeable batteries and carry extras in my billfold