10440 is a rechargeable flashlight battery, a bit shorter than an AA and as thin as a pencil. It gives 3.6 volts.
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It gives more power than a normal battery. Only use it in things made for it.
All of these are the same battery. Any of them will work.
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10440 next to a US quarter and an AA battery. “Real size” matches your hand once your screen is set up in Measure it.
Battery names are a code. Here’s how to read 10440:
| Brand | Their name for it |
|---|---|
| Official name | 10440 |
Yes. They’re the same battery with different names.
About 3 years if it stays cool and dry.
Yes, it’s rechargeable. Only charge it in a charger or device made for it.