r/YouShouldKnow • u/Loninappleton25 • 3d ago
Technology YSK: Use your battery recharger before first use of AA AAA battery purchases
Why YSK: Today I got a new pack of rechargeable common AAA batteries. I had not used the recharger on fresh batteries from the store previously. Now all four are charging. So for a full charge, take this step before installing in flashlights etc.
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u/Wrong_Assistance7096 3d ago
Yeah isn't it by law they have to ship them at a lower voltage?
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u/Dismal-Anybody-1951 3d ago
idk about that but most battery chemistries have longer useful life if they are shipped and shelf-stored partially charged (50-80%)
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u/Loninappleton25 3d ago
OP- I was just pleased that YSK didn't bounce me out for some format infraction. YSK ; read the rules but type out exactly what you see in a post. ;-)
No idea about the lower voltage question. And I usually leave the charge on overnight. On this recharge so far it's been 2 hours.
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u/mazzicc 3d ago
Doesn’t the package tell you this? Every other rechargeable device I’ve bought says to charge before use. I assumed just the batteries would too