eli5: Why do seemingly all battery powered electronics need at least 2 batteries?
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Also, a single alkaline battery at 3v, if in the same form factor as a AA batter would have double the voltage, but half the capacity. You’d still want two batteries.
Essentially, 1.5v is a legacy voltage that we keep. Higher voltage, assuming same chemistry, would be at the expense of capacity, assuming the form factor stays the same.
Or simply put, watt-hours would be the same regardless.
Also, a single alkaline battery at 3v, if in the same form factor as a AA batter would have double the voltage, but half the capacity. You’d still want two batteries.
Essentially, 1.5v is a legacy voltage that we keep. Higher voltage, assuming same chemistry, would be at the expense of capacity, assuming the form factor stays the same.
Or simply put, watt-hours would be the same regardless.
Voltage is derived from chemistry. There is an electric pressure associated with different reactions, and a battery is a device for creating a lot of this pressure in parallel. The basic reactions tend to produce something in the area of 1.5 volts. This is normal for alkaline batteries, the sort you are used to.
The devices we power with those piles usually need more power than this. My knowledge of this is very dated at present, but it comes down to the kind of transistors in the chips. You get about 3 volts out of 2 batteries… Roughly 5 volts out of 3…
Voltage is derived from chemistry. There is an electric pressure associated with different reactions, and a battery is a device for creating a lot of this pressure in parallel. The basic reactions tend to produce something in the area of 1.5 volts. This is normal for alkaline batteries, the sort you are used to.
The devices we power with those piles usually need more power than this. My knowledge of this is very dated at present, but it comes down to the kind of transistors in the chips. You get about 3 volts out of 2 batteries… Roughly 5 volts out of 3…
Voltage is derived from chemistry. There is an electric pressure associated with different reactions, and a battery is a device for creating a lot of this pressure in parallel. The basic reactions tend to produce something in the area of 1.5 volts. This is normal for alkaline batteries, the sort you are used to.
The devices we power with those piles usually need more power than this. My knowledge of this is very dated at present, but it comes down to the kind of transistors in the chips. You get about 3 volts out of 2 batteries… Roughly 5 volts out of 3…
I have a logitech wireless mouse my friend got me for my 19th birthday. 14 years later ive changed the battery 5 times
I have a logitech wireless mouse my friend got me for my 19th birthday. 14 years later ive changed the battery 5 times
I have a logitech wireless mouse my friend got me for my 19th birthday. 14 years later ive changed the battery 5 times
This is really only a thing with devices that take low voltage consumer batters (AA, AAA and the like) for reasons already described. There’s tons of devices with a single battery, sometimes an embedded one and sometimes removable. My camera, for instance, takes a proprietary battery and has its own charger. My phone and laptop have an integrated battery. I have a lot of devices that take a single small button cell batteries that are used in watches. I have tools from an electric screwdriver to a leaf blower that all take single proprietary batteries.
This is really only a thing with devices that take low voltage consumer batters (AA, AAA and the like) for reasons already described. There’s tons of devices with a single battery, sometimes an embedded one and sometimes removable. My camera, for instance, takes a proprietary battery and has its own charger. My phone and laptop have an integrated battery. I have a lot of devices that take a single small button cell batteries that are used in watches. I have tools from an electric screwdriver to a leaf blower that all take single proprietary batteries.
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