Rayovac alkalines.
•8 AA batteries
•8 AAA batteries
•4 C batteries
•4 D batteries
•2 9V batteries
26 batteries for $7
Alkalines are never a bargain, they leak and kill lights.
Only if you leave them in and there's a slight current draw. They're just fine when they're in the package.
Alkalines are a great affordable way to get extra capacity that will be there even if you forget to recharge all your batteries.
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i keep a bunch of alkaline AAs on hand just in case. great for kids toys too, even if they do leak its just one less toy to pick up.