Small and powerful enough battery?

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The discussion revolves around finding a small yet powerful battery for an alarm tag that requires a buzzer to operate for at least five minutes at 5V and 75 mA. A suggestion was made to use two CR2032 lithium batteries, which provide sufficient capacity in a compact size. The Renata 317 Skin battery was considered, but it was determined to be inadequate due to its low capacity of only 10.5 mAh. Adding a small transistor was proposed as a potential solution, but it was clarified that transistors do not enhance battery capacity. The conversation highlights the challenge of balancing size and power in battery selection for electronic projects.
Dimitar63
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Hi all,
I work on something.. its alarm tag. I found buzzer which i want to use in simple electric circuit. Components are the buzzer, and a battery. The tag must work minimum 5 min. The problem is.. I can not find battery small and powerful enough at the same time. Battery diagonal must be 3 cm or less.
Electronic characteristics- Magnetic Buzzer PB-0927PQ

-Oscillation Frequency (Hz)-_______________2731
-Operating Voltage (Vp-p)-_________________4.5~ 5.5
-Rated Voltage (Vp-p)-_____________________5.0
-Current Consumption (mA/max.)-____________75 at Rated Voltage
-Sound Pressure Level (db/min)-______________85 at 10cm at Rated Voltage
-Coil Resistance (Ω)- _______________________25± 4
-Operating Temperature (°C)________________-20 / +70
-Storage Temperature (°C)_________________-30/ +80
-Condition by wave (°C)__________________260 ±5°C / within 5 sec
-condition by hand (°C)_________________350±20°C / within 5 sec

I hope someone knows the answer of my problems (battery, brand or i don't know..)
please help me.
 
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I might be missing something, but you appear to be saying you need 75 ma for 5 min at 5V? That's only 6.3 mah. Slap 2 CR2032 lithium batteries together and you get 230 mah at 6V in a package only 20x7mm!
 
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russ_watters said:
I might be missing something, but you appear to be saying you need 75 ma for 5 min at 5V? That's only 6.3 mah. Slap 2 CR2032 lithium batteries together and you get 230 mah at 6V in a package only 20x7mm!
Thank you for your reply.
Do you think Renata 317 Skin 5.80x1.65mm /1.55V package of four can do the same work.
 
Dimitar63 said:
Thank you for your reply.
Do you think Renata 317 Skin 5.80x1.65mm /1.55V package of four can do the same work.
No; Google tells me they are only 10.5 mah.
 
russ_watters said:
No; Google tells me they are only 10.5 mah.
How about adding small transistor. It might help right?
 
Dimitar63 said:
How about adding small transistor. It might help right?
No, transistors do not increase the capacity of a battery.
 
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