eBay with cn-kingking has the 50-Pack AG13 Alkaline Coin Cell Button Batteries for $0.99 + $1.69 shipping = $2.68 with free shipping. These are the batteries that go in toys, flashlights, remote control and more.
10-Pack AG13 Alkaline Coin Cell Button Batteries for $1 shipped
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Yay.. now I can use my HP12C again. if I can remember how.
Is the choking child guy going to show up soon?
Your 12C must be pretty old if it needs batteries already. I have an 11C and a 12C. The original batteries in the 11C lasted 16 years. Their replacements are at 11+ years and counting. The 12C is still on the OE batteries.
Ooh, AKA LR44. I just ordered a ten-pack from a US-based seller for the same price. I wonder which will have more working cells in it.
What difference does it make where the *seller* is based?
Also, AG13 and LR44 are not the same thing. You can interchange them [safely] but the LR44 is carbon-zinc while the AG13 is alkaline, a much superior chemistry. So if we assume that about seven of the AG13s are bad, and all your LR44s work, you about broke even.
Ooh.
^ The difference would be that US sellers tend to cost more because they don't have subsidized postage, have US warehouse costs in some cases, having to make more money to survive, but get the product to you quite a bit sooner (usually 2 weeks or more time difference).
These batteries do not have a 11+ year shelf life, it is just luck that any device would go that long. Considering how cheap they are, the prudent thing to do is swap them out after 5 years at most so you don't have as high a risk of the battery leaking and corroding the device contacts.
I don't think it's just luck when the first [OE] set went 16 years and the replacements are at 11 and still working. Those in the 12C are about ten years and doing just fine. Funny thing is that HP says to expect one year, m/l, in both cases. I'm not *that* expert on battery chemistry [EE, not ChE] but it wouldn't surprise me at all to learn that lightly-used batteries last longer than batteries sitting statically in storage.
I am well aware of the delivery-time/shipping-cost tradeoff with buying from an offshore retailer, but he seems to think that somehow buying stateside makes the product better. I find that highly improbable in that they are probably all *produced* in Asia anyway, and in any event others here have bought these and posted favorable comments. But in any event the inferior storage capacity of the LR44 vs. the AG13 more than wipes out whatever advantage he thought he gained. [Ooh.]
The most important factors for battery quality (ignoring cost) are these two:
1) What was the manufacture date
2) Is it a major brand so you have a little confidence in the R&D or Q/C to design and rid the batch of any that may have poor seals.
Ignoring these two factors, which is sometimes reasonable when the cells go into low cost devices, you can usually get cells a lot cheaper buying from a Hong Kong /etc seller. #1 is hard to determine sometimes, some sellers like to state "new" or "factory fresh" nonsense when it has sat around longer than just the normal time to go through shipping channels to get from 1st party to distributor and/or reseller. Same goes for electrolytic capacitors and other semi-perishable electrical items... I've bought "new" 10 year old capacitors previously on eBay and avoid them now for certain items.